Unroot Lock Bootloader and go back to Stock - Help please - LG V30 Questions & Answers

Hi,
I've searched for instructions but can't find my situation.
I'd like to unroot, go back to LG stock, and lock bootloader so I can sell my LGv30 US998.
I have the actual US998 from B&H (not one that's been converted from something else).
Current build is: US99820a with March 1, 2018 Security.
Can someone let me know the procedure? I believe I'd like to go to the latest Oreo version "h" I think.
PS. I've tried to install LGUP tool, LG Flash Tool and none of them seem to detect my phone on Windows 10 from https://lgflash.com/download/ There are so many versions of all of these programs I don't know which one is correct. I've also installed the LGMobileDriver_WHQL_Ver_4.5.0.exe
So, some links to LGUP that actually works would be great.
Thanks

glhelinski said:
Hi,
I've searched for instructions but can't find my situation.
I'd like to unroot, go back to LG stock, and lock bootloader so I can sell my LGv30 US998.
I have the actual US998 from B&H (not one that's been converted from something else).
Current build is: US99820a with March 1, 2018 Security.
Can someone let me know the procedure? I believe I'd like to go to the latest Oreo version "h" I think.
PS. I've tried to install LGUP tool, LG Flash Tool and none of them seem to detect my phone on Windows 10 from https://lgflash.com/download/ There are so many versions of all of these programs I don't know which one is correct. I've also installed the LGMobileDriver_WHQL_Ver_4.5.0.exe
So, some links to LGUP that actually works would be great.
Thanks
Click to expand...
Click to collapse
follow instructions from ChazzMatt's thread, they have LG UP dual linked and the instructions to flash kdz

Thanks. He has lots of threads. Do you have a link?

I believe it's the one/main thread he maintains on how to root/unlock the phone. You'll have to do some thinking on how to go "backwards" from there, but the software and steps are all in there.
Generally speaking, it's NOT recommended to relock the BL because if the phone isn't 100% stock ROM, I believe you could end up bricking or bootlooping. I think you can leave the BL unlocked and just KDZ flash US998 and leave it unrooted (no Magisk, etc). This should look "stock" to anyone who cares to have a stock-specific phone anyway.

I'm concerned a buyer wouldn't like the opening "corruption. lock the bootloader" screen. My assumption is locking the bootloader would get rid of that... Does anyone know if that's true?

glhelinski said:
I'm concerned a buyer wouldn't like the opening "corruption. lock the bootloader" screen. My assumption is locking the bootloader would get rid of that... Does anyone know if that's true?
Click to expand...
Click to collapse
Yes, re-locking the bootloader will get rid of the warning screen. Just make sure you are 100% complete stock (all partitions) before you re-lock it. Otherwise the phone may brick itself.
Also, make sure you remove your Google account in the OS before you wipe/re-flash the phone. Otherwise it will trigger FRP and require the new user to enter the previous username and password.

I might be in the same boat here, would love to know how to just return to stock and relock bootloader (for someone who didn't make an initial backup)

How about these steps:
1) Make sure you have working ADB on your computer, including latest LG USB drivers.
2) Boot into the OS and remove your account using Settings -> General -> Accounts -> (select Google account) -> Remove account. This prevents Android's Factory reset Protection from kicking in, which otherwise would require the previous account to be re-entered after wiping the phone.
3) Go to ChazzMatt's US998 Pie KDZ thread and download and install LGUP exactly as described under How to Install Dev Patched LGUP towards the bottom of post #2. Remember to thank Chazz.
4) Download the KDZ for your current OS version (Oreo or Pie) either from the relevant KDZ ROM thread in the V30 ROM sub-forum or from LG-firmwares.com. Verify its MD5.
5) Enter Download mode: With the phone off, hold Vol Up, and plug in the USB cable that is connected to your PC.
6) Assuming you manage to get into Download mode, launch LGUP and make sure it detects the phone.
7) Flash the KDZ you downloaded using LGUP Refurbish mode. If you're on a custom ROM and/or if you want to do a particularly thorough job, you may consider FIRST flashing Nougat using LGUP Partition DL mode, THEN flashing back up to Oreo or Pie, again using Partition DL Mode.
8) After LGUP (hopefully) completes flashing the KDZ unplug the cable and let phone reboot.
9) Once (hopefully) you're booted into the OS, tap Settings -> General -> About phone -> Software info- > Build number until Developer Options are enabled.
10) Enable Settings -> General -> Developer Options -> Enable OEM unlock.
11) Turn phone off and unplug the cable.
12) With phone off, enter fastboot mode by holding Vol Down and plug in the USB cable that is connected to your PC.
13) In ADB window on computer, enter fastboot devices to verify ADB is working.
14) In ADB window, enter fastboot oem lock to re-lock the bootloader.
15) Use fastboot keys to reboot phone into OS. See that it works.
16). Run Settings -> General -> Reset -> Factory data reset. Do NOT use Master Reset (button dance) or the new user might trigger FRP/kill switch (although shouldn't happen if you removed the account previously and didn't enter it again).
17) Done. Hand off the phone to its new user.
These steps were written off the top of my head. If anybody sees glaring mistakes or omissions, then please let me know.
Note: Some carrier models cannot readily get into fastboot mode. For those you will need to convert back to stock US998 to re-lock the bootloader (using Frankenstein like when you first rooted) and THEN convert back to the carrier firmware (again using Frankenstein).

Thank you

TheDannemand said:
How about these steps:
1) Make sure you have working ADB on your computer, including latest LG USB drivers.
2) Boot into the OS and remove your account using Settings -> General -> Accounts -> (select Google account) -> Remove account. This prevents Android's Factory reset Protection from kicking in, which otherwise would require the previous account to be re-entered after wiping the phone.
3) Go to ChazzMatt's US998 Pie KDZ thread and download and install LGUP exactly as described under How to Install Dev Patched LGUP towards the bottom of post #2. Remember to thank Chazz.
4) Download the KDZ for your current OS version (Oreo or Pie) either from the relevant KDZ ROM thread in the V30 ROM sub-forum or from LG-firmwares.com. Verify its MD5.
5) Enter Download mode: With the phone off, hold Vol Up, and plug in the USB cable that is connected to your PC.
6) Assuming you manage to get into Download mode, launch LGUP and make sure it detects the phone.
7) Flash the KDZ you downloaded using LGUP Refurbish mode. If you're on a custom ROM and/or if you want to do a particularly thorough job, you may consider FIRST flashing Nougat using LGUP Partition DL mode, THEN flashing back up to Oreo or Pie, again using Partition DL Mode.
8) After LGUP (hopefully) completes flashing the KDZ unplug the cable and let phone reboot.
9) Once (hopefully) you're booted into the OS, tap Settings -> General -> About phone -> Software info- > Build number until Developer Options are enabled.
10) Enable Settings -> General -> Developer Options -> Enable OEM unlock.
11) Turn phone off and unplug the cable.
12) With phone off, enter fastboot mode by holding Vol Down and plug in the USB cable that is connected to your PC.
13) In ADB window on computer, enter fastboot devices to verify ADB is working.
14) In ADB window, enter fastboot oem lock to re-lock the bootloader.
15) Use fastboot keys to reboot phone into OS. See that it works.
16). Run Settings -> General -> Reset -> Factory data reset. Do NOT use Master Reset (button dance) or the new user might trigger FRP/kill switch (although shouldn't happen if you removed the account previously and didn't enter it again).
17) Done. Hand off the phone to its new user.
These steps were written off the top of my head. If anybody sees glaring mistakes or omissions, then please let me know.
Note: Some carrier models cannot readily get into fastboot mode. For those you will need to convert back to stock US998 to re-lock the bootloader (using Frankenstein like when you first rooted) and THEN convert back to the carrier firmware (again using Frankenstein).
Click to expand...
Click to collapse
not sure if you can help. i asked chaz as well but haven't received a resolution. i've done this but the phone at aroud >10 says that it needs to enable oem unlock to move forward with fastboot commands. except that this option is greyed out in the dev options. says phone is bootloader is already unlocked and doesn;t give option to enable it?? sigh i have tried 4 versions nougat and oreo ... none worked... any ideas??

johnp357 said:
not sure if you can help. i asked chaz as well but haven't received a resolution. i've done this but the phone at aroud >10 says that it needs to enable oem unlock to move forward with fastboot commands. except that this option is greyed out in the dev options. says phone is bootloader is already unlocked and doesn;t give option to enable it?? sigh i have tried 4 versions nougat and oreo ... none worked... any ideas??
Click to expand...
Click to collapse
I've heard of this before, where OEM Unlock was greyed out in the Developer Settings menu. I believe the answer was you have to wait a few days and it will change. But that's very frustrating when you're trying to get this phone back to stock.
Just to make sure I understood you correctly: You have tried booting into fastboot and run "fastboot oem lock" even with OEM Unlock greyed out, right? Otherwise definitely try that.
I am afraid I don't have any other suggestions.
@ChazzMatt: I remember you posting about this one time. Do you have more to add?

TheDannemand said:
I've heard of this before, where OEM Unlock was greyed out in the Developer Settings menu. I believe the answer was you have to wait a few days and it will change. But that's very frustrating when you're trying to get this phone back to stock.
Just to make sure I understood you correctly: You have tried booting into fastboot and run "fastboot oem lock" even with OEM Unlock greyed out, right? Otherwise definitely try that.
I am afraid I don't have any other suggestions.
@ChazzMatt: I remember you posting about this one time. Do you have more to add?
Click to expand...
Click to collapse
yes. i have tried it anyway but the pc says waiting for devices. it does not recognize it since oem unlock isn't triggered.. doesn't work....sigh

johnp357 said:
yes. i have tried it anyway but the pc says waiting for devices. it does not recognize it since oem unlock isn't triggered.. doesn't work....sigh
Click to expand...
Click to collapse
Understood. Question: Did you flash KDZ with Refurbish or Partition DL? Maybe one of them will clear this state and the other won't. But DON'T go experimenting with other LGUP modes!
Also, you could try a Factory reset and/or Master Reset (button dance) and see if that clears it.
If none of that works, you may have to just wait it out.
Edit: I googled around a bit. It seems Factory reset, then letting the OS connect to the internet (enable WiFi) can make the difference. Try googling as there are many references to this.

TheDannemand said:
Understood. Question: Did you flash KDZ with Refurbish or Partition DL? Maybe one of them will clear this state and the other won't. But DON'T go experimenting with other LGUP modes!
Also, you could try a Factory reset and/or Master Reset (button dance) and see if that clears it.
If none of that works, you may have to just wait it out.
Edit: I googled around a bit. It seems Factory reset, then letting the OS connect to the internet (enable WiFi) can make the difference. Try googling as there are many references to this.
Click to expand...
Click to collapse
i tried both refurbished and partition dl.. i may start tinkering with the others but people have warned against some so i'm hesitant of trying it... this really sucks.. need to return it to VZ on a trade in and running out of time

johnp357 said:
i tried both refurbished and partition dl.. i may start tinkering with the others but people have warned against some so i'm hesitant of trying it... this really sucks.. need to return it to VZ on a trade in and running out of time
Click to expand...
Click to collapse
Why can't you wipe it and return it to VZ like that? They don't care if it's rooted, bl unlocked, etc. They're going to wipe it when they get it and try to resell it regardless, why do their job for them?

ldeveraux said:
Why can't you wipe it and return it to VZ like that? They don't care if it's rooted, bl unlocked, etc. They're going to wipe it when they get it and try to resell it regardless, why do their job for them?
Click to expand...
Click to collapse
i read somewhere that rooting a phone violates their terms and makes it invalid as a trade in...

johnp357 said:
i read somewhere that rooting a phone violates their terms and makes it invalid as a trade in...
Click to expand...
Click to collapse
It voids whatever warranty existed between you, Verizon, and LG, but I haven't seen anything about trade ins. Where'd you read that?

johnp357 said:
i tried both refurbished and partition dl.. i may start tinkering with the others but people have warned against some so i'm hesitant of trying it... this really sucks.. need to return it to VZ on a trade in and running out of time
Click to expand...
Click to collapse
Did you try a Factory reset from the menu, then setup phone again with WiFi enabled? Heck, possibly even entering you Google account during setup and let it sync, if that's what it takes. As long as you perform a Factory reset from the menu to remove your account before trading it in.
@ldeveraux is probably right that Verizon won't care. But I am cautious person too when it comes to these things, and would prefer to trade in the phone in a clean state. Just in case the person you end up dealing with is a nitpick.

TheDannemand said:
Did you try a Factory reset from the menu, then setup phone again with WiFi enabled? Heck, possibly even entering you Google account during setup and let it sync, if that's what it takes. As long as you perform a Factory reset from the menu to remove your account before trading it in.
@ldeveraux is probably right that Verizon won't care. But I am cautious person too when it comes to these things, and would prefer to trade in the phone in a clean state. Just in case the person you end up dealing with is a nitpick.
Click to expand...
Click to collapse
i did try the factory reset. both from within and the buttons. and connected with wifi. didn't work... sadly. removing my account is not an issue. every time I install 1 of 4 diff nougat or oreo kdz in lgup, I put skip in the login so it doesn't have my info anymore... resetting doesn't really do it. messing with the date like others have suggested didn't either.

johnp357 said:
i did try the factory reset. both from within and the buttons. and connected with wifi. didn't work... sadly. removing my account is not an issue. every time I install 1 of 4 diff nougat or oreo kdz in lgup, I put skip in the login so it doesn't have my info anymore... resetting doesn't really do it. messing with the date like others have suggested didn't either.
Click to expand...
Click to collapse
That is indeed puzzling. I did this twice on my old H932 before sending it in for warranty, and never saw that problem.
I am sorry I don't have more suggestions to offer

Related

G5 RS988 Unable to update or get into boot loader

Hi all,
I've spent a rather frustrating week or so in the throes of searching Google and XDA to figure out how to get my brand new RS988 upgraded to the 21c software version on Nougat. Here's what I've done so far:
-Check for OTA updates using the OS. No dice...it went from 11a to 11c and will not find any further updates.
-Use LG Bridge to try to update the software. No dice. The software tries to get the current OS version and then says "cannot find operating system version" and won't contact home base to get the new files.
-Reboot into boot loader to install TWRP. No dice...the phone will not reboot into the boot loader for some reason. I've tried using both the ADB method of "adb reboot bootloader" and "adb reboot-bootloader", but both just have it reboot into the full OS. I've also tried powering on the phone while holding the volume down button, to no avail.
-All root and TWRP methods, and even getting the official bootloader unlock require booting into the boot loader
The one thing I *have* been able to get to work was re-flashing a KDZ of the RS98811c software from autoprime's linked repository.
As best as I can tell, I am stuck. Without being able to install TWRP via the boot loader I don't know how to update the software. Please help me figure this out!
Edit: additional device info added
Android version: 6.0.1, 2016-07-01 security patch
Baseband version: MPSS.TH.2.0.c1.4-00010-M8996FAAAANAZM-1.43591.5
Kernel: 3.18.20
Build: MMB29M
Configuration: F15.LGE.RS988.0
Software version: RS98811c
Security software: MDF v2.0 Release 1
Thanks!
Use lg up
It's possible that you have the RS988.BPT version (Brightpoint), which only got updated to 11h, I believe. I sent in a RS988.USA version, and they swapped for a new BPT motherboard. I've since sent it back yet again to get that resolved.
It appears to be a Tracfone Wireless version, according to the box, at least. It was supposed to be new, not refurb, so fingers crossed that's all good as well. Even if it was the Brightpoint version, wouldn't that have been fixed when I flashed the USA stock ROM?
I also don't see how to use LG UP to reboot into boot loader mode. It only shows me the phone, with nothing clickable, and a selection of 4 processes: refurbish, upgrade, phonesetting, and FOTA upgrade. Not wanting to mess up my phone, I am trying to be cautious about just trying either of the latter two options. Especially without a file there. Thoughts?
You did unlock the bootloader am I correct?
Matthew_Jay said:
You did unlock the bootloader am I correct?
Click to expand...
Click to collapse
Nope. I can't get into the bootloader (unless I've totally missed a method to do that). Even the instructions on LG's website pre-suppose that you can enter the bootloader. Step 9 on their bootloader unlock instructions say:
9. Enter your phone’s unique Device ID. You can view the Device ID by connecting your phone to the PC using a USB cable and entering "adb reboot bootloader" in DOS command window of the folder you created in previous step (for example: C:\tools). Your phone will reboot into the fastboot mode. Enter "fastboot oem device-id" in DOS command window.
Click to expand...
Click to collapse
Unfortunately, issuing that command simply reboots the phone without a bootloader in sight. Any commands issued by fastboot after the "adb reboot bootloader" command just sit there saying "waiting for device". I think if I could get this far, the excellent instructions elsewhere on these forums would have me sorted the rest of the way, since then I could use TWRP to flash a more recent OS version. Thus far, it's only LG UP which works, which also requires a .KDZ file, but I can't find one for any version > 11c.
One further edit - I re-read autoprime's instructions and was at least able to get the phone to boot into recovery mode. (I can't tell whether the grey or white highlight is the "active" selection, so I haven't tried selecting one since I'd rather not wipe my device unnecessarily.) But in that mode it won't connect to my Win10 machine for adb or fastboot to do anything. Still can't get it into fastboot mode using "adb reboot bootloader". What am I missing? Feel free to be super-basic, since it's probably something of that sort.
AdamDG said:
One further edit - I re-read autoprime's instructions and was at least able to get the phone to boot into recovery mode. (I can't tell whether the grey or white highlight is the "active" selection, so I haven't tried selecting one since I'd rather not wipe my device unnecessarily.) But in that mode it won't connect to my Win10 machine for adb or fastboot to do anything. Still can't get it into fastboot mode using "adb reboot bootloader". What am I missing? Feel free to be super-basic, since it's probably something of that sort.
Click to expand...
Click to collapse
Simple answer is "You can't". I am in the same boat, stuck on 11c with no OTAs in sight. The ability to boot into the bootloader wasn't added until a later version (11h, I think?) So until/unless LG releases a KDZ of one of the later versions, you (and I) are out of luck.
Further futile time spent with LG revealed one more issue: the phone apparently was originally for Tracfone. (Never mind that I bought something specified as RS988.AUSATN and not as RS988.ATFNTN.) LG claims they have no say in the operating system or updates (even before they determined it was Tracfone) and now Tracfone says LG is solely responsible for the OS.
What is going on with these jokers?
AdamDG said:
Further futile time spent with LG revealed one more issue: the phone apparently was originally for Tracfone. (Never mind that I bought something specified as RS988.AUSATN and not as RS988.ATFNTN.) LG claims they have no say in the operating system or updates (even before they determined it was Tracfone) and now Tracfone says LG is solely responsible for the OS.
What is going on with these jokers?
Click to expand...
Click to collapse
Hey AdamDG, were you able to solve your issue? I am stuck with the same situation and asinine LG folks won't help me out because Total Wireless/Tracfone are supposed to take care of the matter. But the latter are not responsible for software updates because they are MVNOs and don't (need to) care.
Truly jokers, but more importantly, taking customers for a s(laughter) ride!

[GUIDE][LGV30]Unlocking and Rooting - TWRP/Magisk Step-by-Step

This should take you from the LG "Unlock Bootloader" form through to a fully-functional rooted TWRP'd device. This process wasn't quite as well documented as I would like, so I decided to take a shot at it. I don't guarantee any of this; it's all at your own risk. All props should go to those who went first. I merely got lost trying to follow and so built a map.
Ideally you want an “external” microSD card for this.
This also assumes you have already filled out the LG form and received the unlock.bin file. If not, retrieve it from LG using the tricks in this thread.
You also will want the twrp-3.1.1-0-h930.img image or the US998 TWRP unofficial alpha based on it. (They're the same except for a properties file change.)
And you need the Android development tools installed. I'm assuming you've done that.
1. Back up everything. It’s all going away.
2. If running Android Studio or Helium Desktop, shut it down. Otherwise you may see adb version issues.
a. Side-note: Don’t trust Helium to let you restore your data. Look for “Helium ceases to recognize backups” at https://github.com/koush/support-wiki/wiki/Helium-Wiki - It’s simply the wrong tool for this job.
3. Before you begin, copy the following files to your External SD Card. Otherwise you’ll have to do it later or attempt an adb sideload:
a. Magisk-v15.3.zip
b. no-verity-opt-encrypt-6.0.zip
c. (Optional)LG-rctd-disabler-1.0.zip​4. Ensure you’re in developer mode. If Settings doesn’t have Developer Options, go to Settings – About Phone – Software Info, click Build number 7 times.
5. As per the LG page, http://developer.lge.com/resource/mobile/RetrieveBootloader.dev , ensure Developer Options “OEM Unlock” and “USB Debugging” are enabled.
6. Connect to USB and switch to Photo Transfer Mode. (If you’re a normal user, you probably default to USB. You need Photo.)
7. On your PC, copy the unlock.bin file LG emailed you into your Android development tools directory (in my screenshots, sdk\platform-tools), and run:
adb devices
to ensure the device (and only the device) is listed. If it’s not listed, verify that Photo Transfer mode.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
8. Reboot phone into Fastboot mode
adb reboot bootloader
You should hear the Windows sounds of USB devices going and coming. And the phone has an odd screen.
9. From the same directory (Android tools),
fastboot flash unlock unlock.bin
This takes only a few seconds to run.
10. Reboot with:
fastboot reboot
You will get entirely different start-up screens than normal. Including a warning that your device cannot be checked for corruption. (and a reference to http://g.co/ABH)
Your phone has now been hard reset.
11. Go through the initial phone setup options, to get to Android. Switch USB to Photo Transfer again.
12. You can verify that it’s unlocked either from the Developer Options – OEM Unlock is no longer available because it’s already unlocked, or by:
Installing TWRP:
1. Switch back to developer mode, USB debugging. (OEM Unlock is now not selectable, because it's on permanently.)
2. Switch USB to Photo again; default is charging.
3. As before, on your PC from the Android tools directory,
adb reboot bootloader
4. Fastboot flash recovery twrp-3.1.1-0-h930.img
5. This part is tricky… read the whole thing before starting.
a. Turn OFF the phone, using the volume key to change from Restart at the top to “Power off”.
b. Disconnect the USB cable
c. Holding both the Volume-Down and Power button, turn phone on.
d. As soon as the LG logo appears, continue pressing “Down” but release and re-press Power. Continue holding both until a menu appears.
e. Select to erase all data. You will be asked this several times; keep saying “Yes”.
f. Eventually you will boot into TWRP.​6. Back up the system. This isn’t essential, but you’d be silly not to.
a. In TWRP, set system writable
b. Select “back up”. Note there’s no data, because that partition is encrypted.
c. Select the SD card (or USB; I use a micro SD card.)
d. Back it up. This will take around seven minutes.​7. Turn off data encryption and install stuff… all in TWRP:
a. Wipe Data – Factory Reset
b. Wipe Data – Format Partition
c. Install – set storage to the External SD
d. Install the Magisk zip
e. Install the no-verity-opt-encrypt-6.0.zip
f. Install the LG-rctd-disabler-1.0.zip; this reduces LG root checks, which may impede performance.
g. Reboot – to System​If booting fails with an encryption error, did you format (b above) the partition? If not, reinstall TWRP (except you don't need to backup again) and do both the wipe and format.
You will now have to set up the phone again, but should have root (via Magisk.)
EDIT: This has been added to the steps above.
_______
Good write up, but please add the "don't check root" file. It would go into the section where you flash the no verity file.
LG-rctd-disabler-1.0.zip
https://build.nethunter.com/android-tools/lg-rctd-disabler/
Recently, we discovered a system module on many LG devices which scans for root access. Called*RCTD, the tool is activated whenever an LG phone running stock-based software has been rooted. This has led to device slowdowns (as the process never shuts down) and also has left some users feeling uneasy about it as well.
we can now disable this check with a simple application
Click to expand...
Click to collapse
A lot of people are already using it when flashing TWRP with the phone.
_____
ANOTHER EDIT:
After installing TWRP, it's a good idea to download TWRP Manager from the Play Store.
From that app, you can easily reboot into TWRP without doing the power/volume button dance. In the app's settings, change app start up screen to be reboot options. That way, every time you open the app, that's the immediate option you can choose.
Sent from my official carrier unlocked LG V30+ US998
Now that the US998 is unlocked and rooted. Has anyone tried to get that secret T-Mobile menu working to see if band 71 can be enabled?
ChazzMatt said:
Good write up, but please add the "don't check root" file. It would go into the section where you flash the no verity file.
Click to expand...
Click to collapse
I wasn't even aware of it! Good reason for the write-up.
US998?
Is this safe for US998? Just asking since the TWRP file says it is for H930.
One question. Works on every firmware or only on 10f?
crothlisberger said:
Is this safe for US998? Just asking since the TWRP file says it is for H930.
Click to expand...
Click to collapse
Yes. We're trying to get the V30 TWRP developer @jcadduonoto change the TWRP name and the description, but he's ignoring us right now. It's compatible with US998. Been proven many times.
If the TWRP developer would edit the thread title, op, and even the file properties it would eliminate a lot of confusion. For instance, doesn't need show H930 when plugged into your PC in TWRP mode. I don't have an H930, I have US998. It could easily say "V30" or "JOAN" (the LG code name for this device).
It's just the H930/H930G was placed on LG Developer Bootloader Unlock list back in December. We're playing catch up to them.
Sent from my official carrier unlocked LG V30+ US998
Dizzyrul3z said:
One question. Works on every firmware or only on 10f?
Click to expand...
Click to collapse
Some have problems with any other firmware than 10f on the H930, personally i dont have problems with 10f or 10v, didnt try 11m yet.
Dizzyrul3z said:
One question. Works on every firmware or only on 10f?
Click to expand...
Click to collapse
What's 10f? I have 10c.
This is my rooted US998 with TWRP.
Sent from my official carrier unlocked LG V30+ US998
Thanks
Thanks for gathering all this together. Was able to follow the steps last night and am up and running rooted now.
Additional information - As the guide states, it uses Magisk however SuperSU also works fine for root.
Thanks @Wotta for the write-up.
Disclaimer : And yes...Understand with different root comes advantages / disadvantages.
vinniej said:
Additional information - As the guide states, it uses Magisk however SuperSU also works fine for root.
Thanks @Wotta for the write-up.
Disclaimer : And yes...Understand with different root comes advantages / disadvantages.
Click to expand...
Click to collapse
That is good to know for anyone who doesn't like to use the one from the person who stole code from Chainfires hard work.
Do Wifi calling and HD voice and video work with the rooted US998? I have had the VS996 since late October and although I love the phone, I really miss having a rooted device (mostly for nandroid backups, but also for ad blocking).
Does this work for the V300L?
jake2447 said:
Thanks for gathering all this together. Was able to follow the steps last night and am up and running rooted now.
Click to expand...
Click to collapse
You're welcome. I'm glad it was clear.
BobberK said:
Does this work for the V300L?
Click to expand...
Click to collapse
Read paragraph #2 of the op:
Wotta said:
This also assumes you have already filled out the LG form and received the unlock.bin file. If not, retrieve it from LG using the tricks in this thread.
Click to expand...
Click to collapse
Are you able to get bootloader unlock.bin from the LG Developer Bootloader Unlock list website?
It's only for V30/V30+ that are eligible to do that.
I'm not being smart aleck. The US998 V30 is not officially listed as eligible (yet). But someone found a way to hack the dropdown list and still get US998 V30 unlock.bin. It works if you follow the right steps. The US998 V30+ SHOULD also work, but does not (yet).
So, the answer for you is probably no. But you'll have to try to get bootloader unlock.bin from the LG Developer Bootloader Unlock list website to know for sure.
Sent from my official carrier unlocked LG V30+ US998
This will not work on T-Mobile version right?
nofroyo said:
This will not work on T-Mobile version right?
Click to expand...
Click to collapse
See the answer immediately above your question. You need bootloader unlock.bin from LG.
Sent from my official open market LG US998 V30+
Will it work on Indian dual sim model i.e. H930DS. ?
Can't access TWRP
Hi guys,
I'm having a problem entering TWRP.
I unlocked my bootloader and "successfully" installed TWRP. But I can't get past step 5 (the tricky part). So after flashing TWRP I disconnect the phone from the PC and switch it off. Then as described in step 5 I access the part where I'm supposed to do the factory data reset. But once I hit yes for the second time the black-orange warning screen pops up immediately and after a few seconds the phone reboots to the normal software which is NOT completely reset.
So I just can't access the custom recovery TWRP no matter what I do or how often I try...
I would be very grateful for any help

Unlock bootloader of the LG V533

Hello everyone,
I want to unlock boot loader on my LG G PAD IV 8 (V533).
I did the OEM unlock in setting of developer options, But I couldn't reboot to bootloader and fastboot mode.
I tried:
1) adb reboot bootloader -> it reboots normally
2) Volume down and power and release power and hold all keys down --> IMEI display
3) Hold volume Up and connect USB --> Download mode (no fastboot)
4) Volume down and power and release power and hold back power --> factory reset
How can I enter to fastboot mode on this device so I can unlock the device? I don't find the key combination.
Thanks
Did you fimd any imfo on this yet???
Same situation. I did exactly the same thing you did and just found your post now.
No way at all to ROOT or Unlock LG V533 Bootloader ??
eggmama said:
Same situation. I did exactly the same thing you did and just found your post now.
Click to expand...
Click to collapse
Hi,
Looks like the Canadian variant of the LG GPad IV 8.0 is unrootable or unable to unlock the bootloader. However, the US T-Mobile variant (V530) which is essentially the same specs, is rootable according to other XDA post https://forum.xda-developers.com/g-pad-x-80/how-to/guide-root-lg-g-pad-v530-newbies-t3901485
Should any new info come up regarding this variant, feel free to post it here. Thanks
I just flashed 8.1 with a Korean kdz. onto an LG-V533 using LGUP Dual Mode. Next I will see about recovery, but for now pleased with the results. I got tired of searchig for American firmware with identical hardware.
mindlery said:
I just flashed 8.1 with a Korean kdz. onto an LG-V533 using LGUP Dual Mode. Next I will see about recovery, but for now pleased with the results. I got tired of searchig for American firmware with identical hardware.
Click to expand...
Click to collapse
Could you please tell us where to download it and how to flash? There's any tutorial around?
mindlery said:
I just flashed 8.1 with a Korean kdz. onto an LG-V533 using LGUP Dual Mode. Next I will see about recovery, but for now pleased with the results. I got tired of searchig for American firmware with identical hardware.
Click to expand...
Click to collapse
Did you simply use the LGUP Dev mode and flash the Korean kdz onto the V533 or did you modify anything somehow? Would like to try it but not familiar with flashing LG devices, only ZTE and HTC
That's correct. I am going from memory here, but i know i did not make any alterations of any kind prior. It will repartition the device and i'm not certain if you can revert.
I did it for a friend and it works well. You'll wind up with a few weird Korean apps. The ones you can't uninstall just use adb or app manager.
I am pretty sure the selection i used was "download" and it gave a warning about repartitioning. So obviously i did it. I think it froze during initial boot. I recall waiting far too long and just force rebooted and all was well. I am much more comfortable flashing a Motorola or Samsung myself. I've cross flashed a few Lg's now and they seem to work well.
Even though i spend a lot of time making sure it can work, you may get different results. Make sure it's charged good. I learned that one already. Let me know how it goes!
After your cross-flash, 3g/lte works? Your IMEI remains the same as original IMEI?
Thanks.
mindlery said:
That's correct. I am going from memory here, but i know i did not make any alterations of any kind prior. It will repartition the device and i'm not certain if you can revert.
I did it for a friend and it works well. You'll wind up with a few weird Korean apps. The ones you can't uninstall just use adb or app manager.
I am pretty sure the selection i used was "download" and it gave a warning about repartitioning. So obviously i did it. I think it froze during initial boot. I recall waiting far too long and just force rebooted and all was well. I am much more comfortable flashing a Motorola or Samsung myself. I've cross flashed a few Lg's now and they seem to work well.
Even though i spend a lot of time making sure it can work, you may get different results. Make sure it's charged good. I learned that one already. Let me know how it goes!
Click to expand...
Click to collapse
---------- Post added at 08:51 AM ---------- Previous post was at 08:49 AM ----------
Please let me know if you tried, fail or not. Thanks.
fuzzmania said:
Did you simply use the LGUP Dev mode and flash the Korean kdz onto the V533 or did you modify anything somehow? Would like to try it but not familiar with flashing LG devices, only ZTE and HTC
Click to expand...
Click to collapse
Sorry. I did it and it was successful
By this do you mean your IMEI remained the same (original IMEI)?
I would like to cross-flash in order to unlock the bootloader, then install TWRP. Thank you. Could you give more details about
(1) Your original model. I assume it was LG-V533 Canada Rogers or Telus.
(2) After cross-flashing, the model changed to ...? Have you tried "adb reboot bootloader" . Inside bootloader: "flashboot oem unlock"?
mindlery said:
Sorry. I did it and it was successful
Click to expand...
Click to collapse
sintoo said:
By this do you mean your IMEI remained the same (original IMEI)?
I would like to cross-flash in order to unlock the bootloader, then install TWRP. Thank you. Could you give more details about
(1) Your original model. I assume it was LG-V533 Canada Rogers or Telus.
(2) After cross-flashing, the model changed to ...? Have you tried "adb reboot bootloader" . Inside bootloader: "flashboot oem unlock"?
Click to expand...
Click to collapse
I have no idea. I did it to upgrade the OS and my buddy never intended to put in a SIM. I will see if i can get him to check. Pretty sure his ex has it now. But i'll check out the imei if possible. Should be able to tell by the first 9 digits. I never attempted unlocking the bootloader either Sorry i cannot help much beyond that.
---------- Post added at 03:16 PM ---------- Previous post was at 02:36 PM ----------
sintoo said:
By this do you mean your IMEI remained the same (original IMEI)?
I would like to cross-flash in order to unlock the bootloader, then install TWRP. Thank you. Could you give more details about
(1) Your original model. I assume it was LG-V533 Canada Rogers or Telus.
(2) After cross-flashing, the model changed to ...? Have you tried "adb reboot bootloader" . Inside bootloader: "flashboot oem unlock"?
Click to expand...
Click to collapse
I have no idea. I did it to upgrade the OS and my buddy never intended to put in a SIM. I will see if i can get him to check. Pretty sure his ex has it now. But i'll check out the imei if possible. Should be able to tell by the first 9 digits. I never attempted unlocking the bootloader either Sorry i cannot help much beyond that.
hrh0001 said:
Hello everyone,
I want to unlock boot loader on my LG G PAD IV 8 (V533).
I did the OEM unlock in setting of developer options, But I couldn't reboot to bootloader and fastboot mode.
I tried:
1) adb reboot bootloader -> it reboots normally
2) Volume down and power and release power and hold all keys down --> IMEI display
3) Hold volume Up and connect USB --> Download mode (no fastboot)
4) Volume down and power and release power and hold back power --> factory reset
How can I enter to fastboot mode on this device so I can unlock the device? I don't find the key combination.
Thanks
Click to expand...
Click to collapse
Hello
Does anyone have any active custom rom links/tutorials for V533 and V497? seems all online are down or gone? Thx

P10 Lite Bootloader locked/unlocked at the same time? OEM Unlocking greyed out?

Hi all,
I have a P10 Lite that is running Nougat, EMUI 5.1. The phone displays the very ominous 'This phone has been unlocked and is therefore not secure' message at every boot. I would like to get rid of this message as we are putting it back on sale within the store and do not want to scare customers with this warning. I have the bootloader lock/unlock code but whether it is locked/unlocked, the message still appears AND OEM unlocking is greyed out in developer settings. Additionally after 'locking' it in fastboot, when put back into fastboot mode it still displayed as 'Phone Unlocked'. I have tried updating it through SD card but that did nothing. Is it basically stuck in this state now?
Just flash official firmware to replace bootloader.
Skyhuppa said:
Just flash official firmware to replace bootloader.
Click to expand...
Click to collapse
How can I flash if OEM unlocking is greyed out?
pandatechrma said:
How can I flash if OEM unlocking is greyed out?
Click to expand...
Click to collapse
I think flashing it original full firmware will work for you, whether OEM unlocking at settings has greyed or disappear. Ones the device drivers can be recognize by computer at this stage it should support full flash. That is why is always advisable to keep device full backup before tempering with it. Download the device original firmware online, use it supported flash tool and flash through computer.
Since you are also on sale point or shop, you can take same phone from shop if available, backup then restore the files to the OEM greyed phone.
But before performing full flash make sure you keep backup of exiting firmware, so that you can restore back when new firmware does not support your device.
I think flashing it original full firmware will work for you, whether OEM unlocking at settings has greyed or disappear. Ones the device drivers can be recognize by computer.
Check this link but follow all instructions and comments
https://forum-xda--developers-com.c...pilation-firmware-flasheables-huawei-t3736754

Question Sm-t227u mdm lock/rooting help

Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
SM-T227U is an American model wich doesn't have the OEM unlocking option, you could unlock using unofficial ways but those are not pretty "stable".
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
Click to expand...
Click to collapse
Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
evan5935 said:
Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
Click to expand...
Click to collapse
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
Click to expand...
Click to collapse
If it has Mediatek chipset then you can use SP flash tool to format the tablet firmware and reflash it.
I would strongly recommend you to backup the NV DATA and NVRAM files before you format the tablet.
coocooguy246 said:
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
Click to expand...
Click to collapse
You can follow this guide actually! ( https://forum.xda-developers.com/t/...220-t225-install-lsposed-magisk-mods.4406933/) it recommends just skipping the setup junk
I have found that many times, rooting methods work across different models of the same device unless there are some sort of major differences in chipsets or some sort of random change lol
The only thing that doesn't seem to work for our model is section V of the guide which is for the removal of the "bootloader is unlocked" screen at startup. so you will still need to press the power button on that screen to boot up. It's a tiny hassle, but otherwise no big deal in my personal opinion
Make sure to read all the way to the end of the root section (section 4) and especially remember step 7. I retried probably 4 times and even patched the entire AP file of the firmware for use in odin (doing this gives a second warning on Knox screen that it isn't samsung official fw then boots normally into the bootlogo screen) before realizing everything was going fine.. I recommend just using the patched Magisk boot.img first just because I find it unsightly
Just flash the boot.tar in the AP slot. Don't download any of the boot imgs from the guide because they are for the t220's and t225's. I'll link the one I made according to the guide below. It'll save you some time and you won't need to install zarchiver and Magick just to have it factory reset again lol. Just download the latest Magisk apk (26.1) from the official github (https://github.com/topjohnwu/Magisk/releases) and install it when you have completed the 2nd factory reset/the patched boot img install.

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