Oem unlock greyed out - LG V30 Questions & Answers

I flashed havoc os had some issues , tried restoring from my backup, got caught in a bootloop so i used lgup to flash a kdz and it worked.but now my enable oem unlock is turned off and it is greyed out. What can i do.

Mohammedbi said:
I flashed havoc os had some issues , tried restoring from my backup, got caught in a bootloop so i used lgup to flash a kdz and it worked.but now my enable oem unlock is turned off and it is greyed out. What can i do.
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Click to collapse
The same thing happens to me, I have not found much info about this, I hope you can help us.

Mohammedbi said:
I flashed havoc os had some issues , tried restoring from my backup, got caught in a bootloop so i used lgup to flash a kdz and it worked.but now my enable oem unlock is turned off and it is greyed out. What can i do.
Click to expand...
Click to collapse
I already found the solution, but it will erase your data.
with the adb commands you must restart the device in boorloader mode:
adb reboot bootloader
Then when I take you to the bootloader screen what you have to write next:
fastboot oem lock
(Remember the phone will be erased)
then to restart the device you have to:
fastboot reboot
And the device will reboot.
what you do is lock it, so that you can then unlock it in a simple way.
(If you do not know what the ADB is, warn man), I hope it helps you and those who enter here too :good:

@l3dson: Be careful before relocking the bootloader: The phone MUST be 100% stock or you will have a brick.
@Mohammedbi: Your bootloader is still unlocked, even after flashing the KDZ. It's just the newly flashed ROM doesn't know it, and you don't need it to.
Just go to fastboot (PowerOff, Vol- while plugging in cable) and flash TWRP. Follow ChazzMatt's root guide for the initial TWRP steps.

Have anyone found the solution for this problem...

vino90m said:
Have anyone found the solution for this problem...
Click to expand...
Click to collapse
What exactly is not working?
ADB doesn't require Enable OEM Unlock to be set. Just plug it in and ADB away - unless drivers or cable or port aren't working.
And your bootloader is still unlocked if it was unlocked before you flashed stock Oreo. You should be able to enter fastboot using the steps described in the post just before yours.
Edit: Of course you have to enable USB debugging in order to use ADB. I'm sure you knew that

l3dson said:
I already found the solution, but it will erase your data.
with the adb commands you must restart the device in boorloader mode:
adb reboot bootloader
Then when I take you to the bootloader screen what you have to write next:
fastboot oem lock
(Remember the phone will be erased)
then to restart the device you have to:
fastboot reboot
And the device will reboot.
what you do is lock it, so that you can then unlock it in a simple way.
(If you do not know what the ADB is, warn man), I hope it helps you and those who enter here too :good:
Click to expand...
Click to collapse
hey i have this same problem and been asking around... but the adb reboot command will not work because it says the phone must be "enabled oem unlock" mode before you can use adb commands... which is greyed out..so back to square one... how to enable it?? any suggestions on this??

Related

[Q]Fastboot to relock bootloader

I want to unroot and go back to stock completely. I read some howto threads and they had a step about relocking the bootloader by going into fastboot. How exactly do I do that?
nulcon said:
I want to unroot and go back to stock completely. I read some howto threads and they had a step about relocking the bootloader by going into fastboot. How exactly do I do that?
Click to expand...
Click to collapse
I believe Hassoon's all in one tool has an option to do that:
http://forum.xda-developers.com/showthread.php?t=1493905
Kobraki17 said:
I believe Hassoon's all in one tool has an option to do that:
http://forum.xda-developers.com/showthread.php?t=1493905
Click to expand...
Click to collapse
I tried his toolkit so many times to try to relock the bootloader but it doesn't detect my phone even if USB Debugging is check on.
nulcon said:
I tried his toolkit so many times to try to relock the bootloader but it doesn't detect my phone even if USB Debugging is check on.
Click to expand...
Click to collapse
You have USB debugging checked on, do you also have it set up as CHARGING ONLY, and not the SD CARD setting?
Double check these settings and report back - another possibility (I can not confirm if it is necessary or not), try booting into the bootloader screen first and then run his re-locking script.
Kobraki17 said:
You have USB debugging checked on, do you also have it set up as CHARGING ONLY, and not the SD CARD setting?
Double check these settings and report back - another possibility (I can not confirm if it is necessary or not), try booting into the bootloader screen first and then run his re-locking script.
Click to expand...
Click to collapse
I have it set up as Charging Only.
if your having issues with the phone being detected... try reinstalling the usb drivers then restarting your computer... and just a heads up.. don't make more then one thread pertaining to the same problem/issue with the phone.. its harder for people to offer you help/advice if they haven't seen what was said/tried before...( i believe i told this to someone already) but yes.. re-install your usb drivers from hasoon's toolkit and see.. if you want to test the adb connection use some of his shortcut commands to boot the phone into recovery or restart it
nulcon said:
I tried his toolkit so many times to try to relock the bootloader but it doesn't detect my phone even if USB Debugging is check on.
Click to expand...
Click to collapse
If you haven't tried resetting it manually through fastboot commands, this may work:
Reboot your phone to bootloader (power button + volume down)
Open a command window and navigate to the folder where your fastboot.exe file is located using the command "cd C:\<folder tree>"
Execute the command "fastboot oem lock"
This worked for me about an hour ago even with my computer not recognizing my phone. Hope it helps.

Need help with bricked Redmi Note 3 Pro (Kenzo/Snapdragon)

Dear Community,
I got my Note 3 Pro Snapdragon Version today and I tried unlocking the bootloader, installing root and TWRP.
Unfortunately after I installed TWRP, WiFi didnt work anymore so I wanted to go back to where I was before.
i tried flashing the GlobalRom with the MiFlash Tool but somehow I'm now stuck with a bootloop.
The phone starts up and shows the MI Logo but doesnt go on. I tried booting TWRP temporarily via fastboot commands so that I can try to flash flashable zip files
but it doesnt let me execute "fastboot boot xyz.img" anymore because my device is locked.
I would really love to hear any solutions or ideas. I dont want any root or something anymore. If someone has an idea Im very happy!!!
thanks a lot in advance and tell me if you need any more infos
Paul/shisaya24
1. keep vol + and vol - pressed while connecting USB to enter adb mode
2. check if phone is connected with "adb devices" in command line, if phone shows up, enter "adb reboot edl"
3. now you can flash via MiFlash
Alex3oe said:
1. keep vol + and vol - pressed while connecting USB to enter adb mode
2. check if phone is connected with "adb devices" in command line, if phone shows up, enter "adb reboot edl"
3. now you can flash via MiFlash
Click to expand...
Click to collapse
First of all, HUGE thanks for your fast answer!
Unfortunately I couldnt get this to work. Since I am stuck at the Logog screen here is what I tried:
Pressing both volume buttons while Logo Screen and plugging USB.
Pressing both colume buttons while fastboot screen is up.
These two didnt enter adb mode, I guess because of the bootloop I'm in
I also tried antering recovery mode with volume up + power button. Pressing both volume buttons didnt help either but when I am in recovery like that it shows my device in adb as "sideload" device.
Maybe that helps ? Can you give further advice or am I doomed?
My idea would be: Is it possible to reflash the device completely only usinf fastboot? The only thing I seem to be able to enter is fastboot...
Is there a way from fastboot to "working phone" ?
or maybe through the "adb sideload" state?
thanks a lot in advance!
Paul
EDIT
tried installing via "adb sideload xyz.zip" command but after shortly showing a status bar on phone screen it aborted and said "Total xfer: 0.00x" on PC screen .
Also: I read "adb reboot edl" brings you to download mode so you can flash something. Tried it but the phone just rebooted the normal system, so it stuck on Logo again...
search miui forum for unbrick, there is 2 or 3 method without opening your device
exp: http://en.miui.com/forum.php?mod=viewthread&tid=257227
Unfortunately they all do not work because they always require either a phone in download mode, and i only get to fastboot and adb sideboard or they require flashing something via fastboot but I can't do that either because it says my device is locked if I try...
Any suggestions how to flash a ROM with fastboot only or with adb sideload?
Thanks a lot
Paul
shisaya24 said:
Unfortunately they all do not work because they always require either a phone in download mode, and i only get to fastboot and adb sideboard or they require flashing something via fastboot but I can't do that either because it says my device is locked if I try...
Any suggestions how to flash a ROM with fastboot only or with adb sideload?
Thanks a lot
Paul
Click to expand...
Click to collapse
I Had The Same Issue Brother ! There are only 2 Things which you can do now .
1. Test Point Method to enter EDL
2.Give it to Service Center . I Gave Mine to Service Center ,They Fixed it in 30 mins or less and it was free
Dharani_V said:
I Had The Same Issue Brother ! There are only 2 Things which you can do now .
1. Test Point Method to enter EDL
2.Give it to Service Center . I Gave Mine to Service Center ,They Fixed it in 30 mins or less and it was free
Click to expand...
Click to collapse
Can I do the test point thing myself or is it risky?
What kind of service center? A general mobile phone repair shop or a Xiaomi special one?
shisaya24 said:
First of all, HUGE thanks for your fast answer!
Unfortunately I couldnt get this to work. Since I am stuck at the Logog screen here is what I tried:
Pressing both volume buttons while Logo Screen and plugging USB.
Pressing both colume buttons while fastboot screen is up.
These two didnt enter adb mode, I guess because of the bootloop I'm in
I also tried antering recovery mode with volume up + power button. Pressing both volume buttons didnt help either but when I am in recovery like that it shows my device in adb as "sideload" device.
Maybe that helps ? Can you give further advice or am I doomed?
My idea would be: Is it possible to reflash the device completely only usinf fastboot? The only thing I seem to be able to enter is fastboot...
Is there a way from fastboot to "working phone" ?
or maybe through the "adb sideload" state?
thanks a lot in advance!
Paul
EDIT
tried installing via "adb sideload xyz.zip" command but after shortly showing a status bar on phone screen it aborted and said "Total xfer: 0.00x" on PC screen .
Also: I read "adb reboot edl" brings you to download mode so you can flash something. Tried it but the phone just rebooted the normal system, so it stuck on Logo again...
Click to expand...
Click to collapse
I've been facing the same (or a similar?) problem about a week ago but managed to get out. Knowing me for having a head like a sieve I made some notes, sadly quite rudimentary
Did you try to flash with MiFlash after "adb reboot edl"? If I remember rightly after "adb reboot edl" you got the logo like booting another way, but the light is blinking red. Then I could flash via MiFlash.
I'm quite sure that if you get a "reboot" after entering "adb reboot edl", your phone will be in edl mode.
I will try that this evening when I am at home again and report. Thanks
Alex3oe said:
I've been facing the same (or a similar?) problem about a week ago but managed to get out. Knowing me for having a head like a sieve I made some notes, sadly quite rudimentary
Did you try to flash with MiFlash after "adb reboot edl"? If I remember rightly after "adb reboot edl" you got the logo like booting another way, but the light is blinking red. Then I could flash via MiFlash.
I'm quite sure that if you get a "reboot" after entering "adb reboot edl", your phone will be in edl mode.
Click to expand...
Click to collapse
Unfortunately this doesnt work. Phone reboots and shows MI Logo but red light doesnt blink and MiFlash doesnt recognize any devices.
Do you have another idea? :/
How did you unlock the bootloader, via official permission or that unofficial hack?
Sent from my Moto G using Tapatalk
I didnt use the official way :/ Im so hoping my phone isnt broken. I wish i owuld have been more patient
shisaya24 said:
I didnt use the official way :/ Im so hoping my phone isnt broken. I wish i owuld have been more patient
Click to expand...
Click to collapse
Only options you have right now are:
1) using test points method which is a but cumbersome and voids warranty if you care about that.
2) go to a xiaomi service center of you have any nearby.
It is hard bricked.
So there is absolutely no option to unlock bootlader via adb sideload or fastboot ?
shisaya24 said:
So there is absolutely no option to unlock bootlader via adb sideload or fastboot ?
Click to expand...
Click to collapse
Apparently, no! Whenever using unofficial methods, read precautions carefully and you missed all as I can see. Wait if someone can help you out.
apply official unlock. then unlock your device from fastboot mode.
asaharaSK said:
apply official unlock. then unlock your device from fastboot mode.
Click to expand...
Click to collapse
That sounds nice and easy. I already applied for official unlock.
But: do you know if u can use the official unlock now? I can only access fastboot and adb sideload mode. Is it possible to activate official unlock from there? Or do I need a working ROM rather?
I would have thought that official unlock doesn't work from fastboot /adb sideload...
shisaya24 said:
That sounds nice and easy. I already applied for official unlock.
But: do you know if u can use the official unlock now? I can only access fastboot and adb sideload mode. Is it possible to activate official unlock from there? Or do I need a working ROM rather?
I would have thought that official unlock doesn't work from fastboot /adb sideload...
Click to expand...
Click to collapse
Does anyone know this?
I have the same problem. I made the same mistakes as shisaya24. I have followed every procedure for unbricking and nothing works. I even applied for an unlock code and got it from Xiomi. I used their mi-unlock app which requires fastboot (pwr/vol-) but it gets to 50% and bombs out. It states it can't verify the phone. Can anyone please help me??
smiley1960 said:
I have the same problem. I made the same mistakes as shisaya24. I have followed every procedure for unbricking and nothing works. I even applied for an unlock code and got it from Xiomi. I used their mi-unlock app which requires fastboot (pwr/vol-) but it gets to 50% and bombs out. It states it can't verify the phone. Can anyone please help me??
Click to expand...
Click to collapse
out of sheer desperation I tried MiPhone again and after a few tries, MiPhone started updating the OS. My phone now works again and I have an unlock code as well.

Fastboot mode won't stay

I am trying to install stock firmware through fastboot. After typing below command,
Code:
adb reboot bootloader
the Device reboots but Fastboot mode only shows for 1 second then the Device reboots to system.
I have Usb debugging ON, OEM unlocking ON
Tried on 2 different PC's. Also tried removing Usb after command.
Reason for stock flashing is just that I used this ADB command on my phone and It lost IMEI: By this method and here is the detailed problem.
UPDATE: Took the phone to service center, they changed the Mainboard. But then Fingerprint was not working (couldn't enroll). They took it again and tried stock flash and fingerprint sensor change but the issue persists, still diagnosing.
shantam22 said:
I am trying to install stock firmware through fastboot. After typing below command,
Code:
adb reboot bootloader
the Device reboots but Fastboot mode only shows for 1 second then the Device reboots to system.
I have Usb debugging ON, OEM unlocking ON
Tried on 2 different PC's. Also tried removing Usb after command.
Click to expand...
Click to collapse
Fastboot is locked.
Unlock fastboot official program.
crocodil said:
Fastboot is locked.
Unlock fastboot official program.
Click to expand...
Click to collapse
My phone has lost Network service and IMEI is null. I did not root. I did this: Method
Does that mean I need to unlock bootloader to flash the stock ROM? Is there any other method? I don't want to lose warranty.
The phone does boot to EDL mode.
shantam22 said:
My phone has lost Network service and IMEI is null. I did not root. I did this: Method
Does that mean I need to unlock bootloader to flash the stock ROM? Is there any other method? I don't want to lose warranty.
The phone does boot to EDL mode.
Click to expand...
Click to collapse
Flash stock rom in twrp mode. See the download in guide section
akashavel said:
Flash stock rom in twrp mode. See the download in guide section
Click to expand...
Click to collapse
Can I achieve this without voiding my phones warranty?
I finally took the device to service center. And the executive said he would send the case to Realme and he is not certain that it would be covered under warranty as the imei is broken. But my device's bootloader is untouched and I never tried rooting.

unable to connect mobile with pc in bootloader

Hi guys I am having an interested issue,
I want to install custom rom in my phone
I have downloaded in depth test and applied for un depth test
my mobile do connect to computer when it prompt to select mod I do select file transfer and my mobile do connect to laptop
and it shows in "adb devices" but when it goes into bootloader mod my mobile gets disconnected I have done everything I could
I have install every possible driver i got from articles but non worked is it the issue with my windows 10 ? or driver issue I have spent my whole night on this but couldn't find the way
fastboot devices
0purple said:
fastboot devices
Click to expand...
Click to collapse
what does it mean ?
when i connect my phone it prompt me with this and usb debugging is on
i tried adb devices but it didn't showed anything but when i chose transfer file it do connect to the laptop and shows in adb devices
najam489 said:
what does it mean ?
Click to expand...
Click to collapse
Try it once you are in fastboot
wow its showing
najam489 said:
wow its showing
Click to expand...
Click to collapse
0purple said:
Try it once you are in fastboot
Click to expand...
Click to collapse
i have another problem now my device is showing with fastboot devices but my devices status is locked when i tried this command "fastboot flash recovery recovery.img" it didnt work i am follwing this article https://www.guidetoroot.com/root-realme-3-pro/
thank you for your help my bootloader wasn't unlock it is now thanks a lot
It appears your device's bootloader is locked. Try:
fastboot oem unlock
fastboot flashing unlock
If that doesn't help, search for a guide on how to unlock bootloader for your specific brand.
It also looks like don't really know what you are doing. Make sure you are following trusted guide. If no, I'll be happy to help.
0purple said:
It appears your device's bootloader is locked. Try:
fastboot oem unlock
fastboot flashing unlock
If that doesn't help, search for a guide on how to unlock bootloader for your specific brand.
It also looks like don't really know what you are doing. Make sure you are following trusted guide. If no, I'll be happy to help.
Click to expand...
Click to collapse
well i did installed custom roms few time but i dont know much, i did unlock bootloader now the problem is i do install custom recovery twrp and it do installed and rom manager shows that custom recovery is installed but pressing volume down + power button just shows fastboot logo and it restart my phone, and with command "
adb reboot bootloader" i am able to boot into fastboot mood and when i go to recovery from their it open stock recovery instead of twrp
Stolen from my guide:
7. Go into fastboot mode
8. fastboot flash recovery recovery.img
9. fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
10. fastboot reboot recovery
12. Sometimes recovery doesn't want to stick as a permanent one. To test it, hold the power button and select "Reboot to recovery". If you reboot to TWRP, you can move on, but if you reboot to stock one, flash recovery using fastboot again and from recovery flash recovery again (sounds crazy, right?). I won't give you instructions on this, research it yourself. Make sure guide you will find is for your device and your recovery.

Question Stuck in fastboot mode

Hello everybody,
My phone's battery died and I charged it. When I tried to turn it on, I saw this screen. I've tried clicking on the options but it's stuck in a loop and I don't understand what's happening.
If anyone has experienced this issue before, I'm reaching out for your help. Please assist me.
Flashing factory firmware in fastboot might be the only option. Doing such will wipe everything on your device though!
aimsjahan said:
Flashing factory firmware in fastboot might be the only option. Doing such will wipe everything on your device though!
Click to expand...
Click to collapse
Can't fastboot anything with a locked bootloader.Android flash tool might be the best way
sylveride08 said:
Hello everybody,
My phone's battery died and I charged it. When I tried to turn it on, I saw this screen. I've tried clicking on the options but it's stuck in a loop and I don't understand what's happening.
If anyone has experienced this issue before, I'm reaching out for your help. Please assist me.
Click to expand...
Click to collapse
Since your bootloader is locked the only way to flash the OS is to sideload the Full OTA via ADB or use Pixel Flasher to sideload it. If you happen to have OEM Unlocking enabled in Developer Options you can use Android Flash Tool as that will unlock your bootloader as long as OEM Unlocking is enabled. If it isn't, sideloading the OTA will be the only way to reinstall your OS to hopefully get you out of this.
shoey63 said:
Can't fastboot anything with a locked bootloader.Android flash tool might be the best way
Click to expand...
Click to collapse
Oops! You are right, mate.
Hello so I am stuck here
When I go to Android Flash Tool it's says :
"Device Unlock Disabled​For security reasons, you need to enable "OEM unlocking" in order to flash your device. "
And when I tape in CMD the command "faastboot falshing unlock" it says
"FAILED (remote: 'flashing unlock is not allowed')
fastboot: error: Command failed"
Is there a way to unlock the devices states I have seen a video when
when a guy is using a unlock.bin he download at LG offcial site. Does Google have an alternative where can I download this type of file for my Pixel 6.
Google doesn't have an alternative. If you can't flash the OTA, and apparently you can't because OEM unlocking wasn't enabled in developer options, you need to get a hold of Google and explain your situation to them. You'll likely have to send it back to them, if able to do so.
You can't enable OEM unlock by fastboot/recovery.
Can you boot into recovery?
If yes, then this is your only way out!
Link
Use image of OTA, not Full!
aimsjahan said:
You can't enable OEM unlock by fastboot/recovery.
Can you boot into recovery?
If yes, then this is your only way out!
Link
Use image of OTA, not Full!
Click to expand...
Click to collapse
Unfortunately, it is not possible as my phone is showing that it is locked and I am unable to access the settings to unlock the OEM, since I am stuck in fastboot mode. Guess it's dead only if there is a way to unlock the OEM without going to setting.
sylveride08 said:
Unfortunately, it is not possible as my phone is showing that it is locked and I am unable to access the settings to unlock the OEM, since I am stuck in fastboot mode. Guess it's dead only if there is a way to unlock the OEM without going to setting. View attachment 5885311
Click to expand...
Click to collapse
You misunderstood!
You don't get to do anything from fastboot with OEM locked.
I asked if you can enter RECOVERY mode?
If yes, then visit the link I shared.
btw, why on earth you are flashing 'adb'?
aimsjahan said:
You misunderstood!
You don't get to do anything from fastboot with OEM locked.
I asked if you can enter RECOVERY mode?
If yes, then visit the link I shared.
btw, why on earth you are flashing 'adb'?
Click to expand...
Click to collapse
Unfortunately, when I go into recovery mode, it keeps looping back to the original screen in an infinite loop.
I lost hope and went to a repair shop, but they told me to contact Google. The customer service will send me a package to return my phone. I didn't know that the OEM was so important, I will activate it next time. Tanks for your helps ...

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