Lg v10 hard brick after root - LG V10 Q&A, Help & Troubleshooting

I think I just hard bricked my V10,
was trying to root it with tot file and something went wrong, it restarted,
Now I have bootloop on lg screen.
When entering download mode phone says following and reboots automatically.
Secure booting Error
Error code: 1009
MODIFIED!
So I basically can't access download mode.
Only input I have is, when connected to PC, during bootloop, before it restarts it's visible as COM device
I think i f#@#ked up real bad guys

Did you try master reset with the power and volume down button?

I need more information. What varient do you have and what tot did you try flashing? Did you try a factory reset?
Sent from my LG-H900 using Tapatalk

when trying to factory reset it gives same error and reboots
Secure booting Error
Error code: 1009
MODIFIED!
it's att h900,
flashed this
root-lg-h900-real-tot-make-tungkick-t3336317

does phone have any lower recovery mode? Download mode is not an option for me currently

Nikoloz17 said:
does phone have any lower recovery mode? Download mode is not an option for me currently
Click to expand...
Click to collapse
When that happened to me after deleting some apps with Titanium (now I just freeze them ), I managed to install the TOT again with LGUP
Turn the phone on (I tried all ways, normal, reset, download mode, not sure which one worked), with LGUP running on the PC and USB cable connected, it worked after a few tries, good luck :good:

Try to get to recovery mode as follows:
Turn off your LG G4 (complete a full shut down process – press power key and select “power off” or press and hold power button for a few moments).
Then, press and hold Power and Volume Down buttons – don’t release the keys.
Keep pressing the buttons until the LG Logo is being displayed.
At that point release the buttons for about 1 second.
After that immediately press and hold Power and Volume Down keys pressed once more.
The recovery mode menu should be then displayed on your LG G4.
You can use Volume Up and Down buttons in order to scroll up and down and you can press Power key to select.
Choose “reboot system now” when you are ready to go back to Android OS.

neptun2 said:
Try to get to recovery mode as follows:
Turn off your LG G4 (complete a full shut down process – press power key and select “power off” or press and hold power button for a few moments).
Then, press and hold Power and Volume Down buttons – don’t release the keys.
Keep pressing the buttons until the LG Logo is being displayed.
At that point release the buttons for about 1 second.
After that immediately press and hold Power and Volume Down keys pressed once more.
The recovery mode menu should be then displayed on your LG G4.
You can use Volume Up and Down buttons in order to scroll up and down and you can press Power key to select.
Choose “reboot system now” when you are ready to go back to Android OS.
Click to expand...
Click to collapse
It does go to recovery, but PC does not detect it. Also when I press to reset phone it give same error and reboot.
melorib
Thanks for advice, but I just can't keep it mounted to pc long enough for LGUP to detect.
Though, i'll try it nonethe less. I have short window before phone reboots, maybe it'll be enough
Thanks for answers

Nikoloz17 said:
It does go to recovery, but PC does not detect it. Also when I press to reset phone it give same error and reboot.
melorib
Thanks for advice, but I just can't keep it mounted to pc long enough for LGUP to detect.
Though, i'll try it nonethe less. I have short window before phone reboots, maybe it'll be enough
Thanks for answers
Click to expand...
Click to collapse
Leave the cable connected and LGUP on all the time while you try rebooting, and look at the PC to see if it recognized the phone, eventually mine connected

LGUP recognizes it but, says that it's an unknown device.
did you have same problems?

Nikoloz17 said:
LGUP recognizes it but, says that it's an unknown device.
did you have same problems?
Click to expand...
Click to collapse
I dont remember exactely how it happened, did you try flashing to the unknown device
Also try after LGUP recognizes the phone unplug and plug USB cable...
The last alternative if it doesnt work is using LG MOBILE SUPPORT TOOL

thanks for trying to help,
but phone is in constant bootloop and it doesn't stay long enough to do something with it

melorib said:
When that happened to me after deleting some apps with Titanium (now I just freeze them ), I managed to install the TOT again with LGUP
Turn the phone on (I tried all ways, normal, reset, download mode, not sure which one worked), with LGUP running on the PC and USB cable connected, it worked after a few tries, good luck :good:
Click to expand...
Click to collapse
Hey, the exact thing happened to me because of the same reason XD
Anyway, I was able to get into download mode and reflash it on the first attempt.
As for the unknown device problem, IIRC it's an issue of LGUP that can be solved via something involving removing the battery.

Related

[Q] galaxy tab2 10.1 wont enter download mode

I have new galaxy tab 10.1 which I am planning to root, however I cannot get unit to enter download mode. I have tried unsuccessfully at least 20 times using the recommended method of turning the unit completely off then holding the vol-/power buttons. I press the vol- slightly ahead of the power button and hold. All I get is the samsung splash looping over and over with no download or recovery menu icons popping up after the samsung splash. Once I let go, the tab will go into android recovery mode with the option to reboot which takes me to where I started. I have followed all of the tutorials to the tee. Is there another way to get to download mode? Should I take it back if this indicates a more serious problem.
I have also done a factory wipe/reset to no avail. Will vol+ / power do anything?
thanks for your interest I would appreciate any help.
emonjato said:
I have new galaxy tab 10.1 which I am planning to root, however I cannot get unit to enter download mode. I have tried unsuccessfully at least 20 times using the recommended method of turning the unit completely off then holding the vol-/power buttons. I press the vol- slightly ahead of the power button and hold. All I get is the samsung splash looping over and over with no download or recovery menu icons popping up after the samsung splash. Once I let go, the tab will go into android recovery mode with the option to reboot which takes me to where I started. I have followed all of the tutorials to the tee. Is there another way to get to download mode? Should I take it back if this indicates a more serious problem.
I have also done a factory wipe/reset to no avail. Will vol+ / power do anything?
thanks for your interest I would appreciate any help.
Click to expand...
Click to collapse
I seem to recall that at least one variant swapped the button around. In any case, it can't hurt to try volume up.
Here's what you do - first, shut the device off by holding power down and waiting for the confirmation.
Then, when it's off, hold the volume down button (to the left side, next to the power button.) Holding that down, press and hold the power button. When you see it light up, release the power button but continue to hold volume down until you see the recovery/download icons.
If doing that doesn't work, try volume up and power. Good luck!
Ill try your suggestions. thank you
emonjato said:
Ill try your suggestions. thank you
Click to expand...
Click to collapse
I'm having a similar problem. I have a galaxy tab 10.1 wifi that I rooted immediately when I got it. I havn't used it in about 4-5 months. I've already done all the odin and download stuff, but now i want to update my cwm and install a JB rom (I'm currently using aokp). I'm having a funny problem with it now -- Its difficult to turn on and impossible to get into download mode.
In order to turn on my tab, I have to hold down the power, connect the charging cable and get the download screen to turn on, then hold down the power again, wait for the screen to turn off, unplug the power and hold the power button until hopefully it turns on again. And this doesn't always work, sometimes I have to do it a few times. But whenever i've tried do the same thing that gets the tab working normally -- only holding the down volume as well as the power, Nothing happens.
Now once its on and working, things work great, but turning it on is a pain and its impossible for me to bring up the download or recovery option.
I've also tried to 'reboot to bootloader' and that doesn't work, although i can still 'reboot to recovery'
Any tips?
scndthe2nd said:
I'm having a similar problem. I have a galaxy tab 10.1 wifi that I rooted immediately when I got it. I havn't used it in about 4-5 months. I've already done all the odin and download stuff, but now i want to update my cwm and install a JB rom (I'm currently using aokp). I'm having a funny problem with it now -- Its difficult to turn on and impossible to get into download mode.
In order to turn on my tab, I have to hold down the power, connect the charging cable and get the download screen to turn on, then hold down the power again, wait for the screen to turn off, unplug the power and hold the power button until hopefully it turns on again. And this doesn't always work, sometimes I have to do it a few times. But whenever i've tried do the same thing that gets the tab working normally -- only holding the down volume as well as the power, Nothing happens.
Now once its on and working, things work great, but turning it on is a pain and its impossible for me to bring up the download or recovery option.
I've also tried to 'reboot to bootloader' and that doesn't work, although i can still 'reboot to recovery'
Any tips?
Click to expand...
Click to collapse
I have almost the exact same problem...
Volume up puts me into download mode and i can connect with Kies but it wont do the JB update
Voulume down ... nothing just boots
if i let it try to do the OTA update it will freeze at the boot screen and stay that way till the battery dies.
To get it to work again i have to do almost exactly what was decribe above..
I have no recovery options at all.
also my Tab is "NOT" rooted
scndthe2nd said:
In order to turn on my tab, I have to hold down the power, connect the charging cable and get the download screen to turn on, then hold down the power again, wait for the screen to turn off, unplug the power and hold the power button until hopefully it turns on again. And this doesn't always work, sometimes I have to do it a few times. But whenever i've tried do the same thing that gets the tab working normally -- only holding the down volume as well as the power, Nothing happens.
Now once its on and working, things work great, but turning it on is a pain and its impossible for me to bring up the download or recovery option.
I've also tried to 'reboot to bootloader' and that doesn't work, although i can still 'reboot to recovery'
Any tips?
Click to expand...
Click to collapse
I had a similar problem initially... the screen would just flash the "downloading" message, but the tablet wouldn't mount/connect to my laptop. Here's the solution:
1) launch odin
2) connect usb cable to laptop only
3) power down tablet
4) hold down the power volume down buttons together
5) when you see the downloading message, let go of the power button
6) let go of the volume down button (now just displays "downloading" message, but nothing happens
7) press volume UP
8) you'll get a message about installing custom ROMs and be given the option to do so by pressing volume UP again
9) the tablet mounts and connects to odin
10) from there follow the instructions for flashing recovery via odin (i.e., using PDA button...)
FYI just double check the guides again regarding download and recovery modes. In the thread title you mention Tab 2. This is the forum for the original Tab not the Tab 2. Both devices have different methods and key presses to access the various modes.
Sent from my GT-P7510

Help getting into download mode.

I have tried the power + volume down and plug the usb into the pc and I get to the Modified recovery where you can go into safe mode or factory reset, etc. I have done it before but it was Kingo root that did it. It's not working because I can't get to usb debugging mode. I need to go back to stock. Thanks
kwcummins22 said:
I have tried the power + volume down and plug the usb into the pc and I get to the Modified recovery where you can go into safe mode or factory reset, etc. I have done it before but it was Kingo root that did it. It's not working because I can't get to usb debugging mode. I need to go back to stock. Thanks
Click to expand...
Click to collapse
If you are using the LGUP method, you do not need to even go into download mode. If you are on the Verizon bootlooped screen you should be able to flash it back to stock right then and there.
Also there is no real recovery method that you can use so you will have to wipe it completely clean unless you have backups.
LGup says phone 'unknown' so it won't work. It worked yesterday. Not sure what happened. Tried the battery pull method but it still doesn't work.
mcbeat257 said:
If you are using the LGUP method, you do not need to even go into download mode. If you are on the Verizon bootlooped screen you should be able to flash it back to stock right then and there.
Also there is no real recovery method that you can use so you will have to wipe it completely clean unless you have backups.
Click to expand...
Click to collapse
kwcummins22 said:
LGup says phone 'unknown' so it won't work. It worked yesterday. Not sure what happened. Tried the battery pull method but it still doesn't work.
Click to expand...
Click to collapse
Does it go into the normal LGUP screen or is it something different?
fixed
i recopied the 'common' folder and it worked.malware detector may have deleted files? weird. up and working again. Thanks
kwcummins22 said:
LGup says phone 'unknown' so it won't work. It worked yesterday. Not sure what happened. Tried the battery pull method but it still doesn't work.
Click to expand...
Click to collapse
I had the same issue with my VS990. LGUP was not seeing the phone. Using the Recovery menu via power + volume down, I booted my phone into USB debugging mode. LGUP was then able to recognize my phone. I then chose the tot file, chose upgrade instead of refurbished, and clicked start. It auto restarted my phone into Download Mode and started the upgrade. If you can get the phone into USB debugging mode, you'll be set.
kwcummins22 said:
I have tried the power + volume down and plug the usb into the pc and I get to the Modified recovery where you can go into safe mode or factory reset, etc. I have done it before but it was Kingo root that did it. It's not working because I can't get to usb debugging mode. I need to go back to stock. Thanks
Click to expand...
Click to collapse
Plug a USB cable into your phone with your phone powered off, hold down on the Vol Up button and plug the USB cord into your computer. It should immediately boot into download mode. I have verified this works on my Verizon V10.
rustypie said:
Plug a USB cable into your phone with your phone powered off, hold down on the Vol Up button and plug the USB cord into your computer. It should immediately boot into download mode. I have verified this works on my Verizon V10.
Click to expand...
Click to collapse
I just confirmed that works good job
Huh. I did mine from a regular boot up, but in debug mode. LGUP commanded it to reboot into DL mode for me.
Download mode on the LG V10 is achieved the same way all other recent LG smartphones have been. Power the device off completely by either the power menu or battery pull. Plug your USB cable into your computer. I didn't have an issue with USB 3.0. Hold Volume up and plug in the phone to the computer. Keep holding Volume up until the phone says download mode. It will do a small loading screen then it will change, this is normal. You can leave download mode by pulling out the battery or by holding the power button for 10-15 seconds.
bantzt said:
Download mode on the LG V10 is achieved the same way all other recent LG smartphones have been. Power the device off completely by either the power menu or battery pull. Plug your USB cable into your computer. I didn't have an issue with USB 3.0. Hold Volume up and plug in the phone to the computer. Keep holding Volume up until the phone says download mode. It will do a small loading screen then it will change, this is normal. You can leave download mode by pulling out the battery or by holding the power button for 10-15 seconds.
Click to expand...
Click to collapse
YOU SIR! Are the ONLY person to GET IT RIGHT! BINGO! Thank YOU!
hi
pls can someone help me? my lg-h901 can't boot into bootloader mode i have tried everything still not working, volume down + power on it reboot to normal, volume down + usb cable plug into pc it saw battery icon and reboot to normal, volume up and down + usb cable plug into pc nothing. i will be very great full if someone tell me what to do thanks in advance
achuho said:
hi
pls can someone help me? my lg-h901 can't boot into bootloader mode i have tried everything still not working, volume down + power on it reboot to normal, volume down + usb cable plug into pc it saw battery icon and reboot to normal, volume up and down + usb cable plug into pc nothing. i will be very great full if someone tell me what to do thanks in advance
Click to expand...
Click to collapse
I think you might be doing it wrong...
Download Mode -> Hold volume up, and plug into usb while STILL holding volume up, release once in download mode
Reset Screen -> Hold volume down + power, then plug into usb whil holding down buttons, release when screens comes on.
Ok, now for my problems. I got my phone into DM, used LGUP to install VS99026A_00_0118.kdz on my VS990. I let it go overnight. Came back to see it failed at about 73%, Error "can't get laf property", ever since then I can't get back into DM again, my LG splash screen will come up, then I get the android guy saying "Erasing...", then it reboots to splash screen again, waits a sec, then turns off. I managed to get into the reset screen with vol dn + pwr + usb method, tried to go into safe mode, now I have same issue getting back to that screen too.
Any help?
my lg v10 stops at download mode screen and don't go furhter
I have a V10 stuck in the bootloop. I was able to get it to boot past the lg screen 1 time but it very quickly rebooted again and is still stuck. And when I try download mode using LG Bridge, my computer says "no phone connected" and my phone stays on the "Download Mode" black screen. How can I fix it?
Tannerlini said:
I have a V10 stuck in the bootloop. I was able to get it to boot past the lg screen 1 time but it very quickly rebooted again and is still stuck. And when I try download mode using LG Bridge, my computer says "no phone connected" and my phone stays on the "Download Mode" black screen. How can I fix it?
Click to expand...
Click to collapse
i have same problem please help
my computer says "no phone connected" and my phone stays on the "Download Mode" black screen. How can I fix it?

Kinda bootloop

I got a D618 and it suddenly turned off and when I tried to turn it back on, it just bricked and keeps bootloop-ing. The phone is stuck on the LG logo and then the screen went off, then get back to the LG logo and suddenly the screen go off and so on.
Already tried Factory Reset but can't because of the LG logo-screen go off loop, also tried LG Tools but can't get into Recovery Mode.
Any help?
Have you tried pulling out the battery for a couple of seconds, then put it back and try the hard reset (aka factory reset) button combination?
To be honest that was the first thing I did.
I don't have TWRP as recovery, can't get into recovery mide either
How about download mode?
Vagelis1608 said:
How about download mode?
Click to expand...
Click to collapse
Can't either. When I tried to get into Download Mode the phone keeps doing the same, it's like the D618 keeps restarting once the LG logo appear
Do you have adb enabled on the device?
If not, then try this: https://forum.xda-developers.com/g2-mini/general/guide-unbrick-bricked-wrong-aboot-img-t3128896
Honestly, I have never seen a bootloop that affects all boot modes...
Are you sure you got the hard reset and the download mode key combinations right?
Hard reset: Press and hold Vol- and Power, once the screen comes on, release Power for half a second, then hold both of them for a few seconds, until you see the hard reset menu.
Download mode: Make sure you have LG's drivers installed. Hold the Vol+ button, plug a data-enabled USB to your PC and your phone, all while holding the Vol+ button. Keep holding it until the phone enters download mode.
Edwinc26 said:
Can't either. When I tried to get into Download Mode the phone keeps doing the same, it's like the D618 keeps restarting once the LG logo appear
Click to expand...
Click to collapse
Could be the battery. Was therw some special event before this happend?
Vagelis1608 said:
Do you have adb enabled on the device?
If not, then try this: https://forum.xda-developers.com/g2-mini/general/guide-unbrick-bricked-wrong-aboot-img-t3128896
Honestly, I have never seen a bootloop that affects all boot modes...
Are you sure you got the hard reset and the download mode key combinations right?
Hard reset: Press and hold Vol- and Power, once the screen comes on, release Power for half a second, then hold both of them for a few seconds, until you see the hard reset menu.
Download mode: Make sure you have LG's drivers installed. Hold the Vol+ button, plug a data-enabled USB to your PC and your phone, all while holding the Vol+ button. Keep holding it until the phone enters download mode.
Click to expand...
Click to collapse
It's been 3 days and still the same.
The phone was working all right, I didn't flash a new ROM.
Yes, I tried all key combinations. Tried the hard reset key combination, it shows me the Factory Reset confirmation message but once I set YES it enter the bootloop again. Also tried the Download Mode, but once I get into the phone just restart and go into bootloop.
----------------------------
DrAcula04 said:
Could be the battery. Was therw some special event before this happend?
Click to expand...
Click to collapse
That's the first thing I thought but I tested the battery with a multimeter and it's all ok.
Edwinc26 said:
That's the first thing I thought but I tested the battery with a multimeter and it's all ok.
Click to expand...
Click to collapse
It is probably not the battery, but mine just let the phone reboot when it gets a little hot. There is no problem with the voltage in normal use.

HELP! Blue Wave 8 33GT tablet stuck in recovery mode with "No command" message

HELP! Blue Wave 8 33GT tablet stuck in recovery mode with "No command" message
I got my Blue Wave 8 33GT (not HD+) tablet completely bricked. First of all, I know this is not really a popular device and some of you might not have a single knowledge about this one, but I hope in any way you might help me get this device working again. Thank you in advance!
Some info about this device:
Bluewave's website: Wave 8
Android OS version: 4.4 KitKat
Device processor: Rockchip-based (RK31)
What just happened? It suddenly reboots while I'm playing and gone into recovery mode with an Android and a "No command." message. Now it won't boot the system anymore whenever I reboot, it always going into this recovery mode.
It has no volume buttons, just a reset, a hard back button and power button. Holding down the power and back button goes into the recovery mode directly. Through normal boot, it flashes the Bluewave logo twice then goes into the recovery. While the reset button immediately turn the device off. There's nothing else I can think of that I can do in this case.
My laptop can recognize it as an ADB Device in recovery mode and I think I may be able to flash it via Rockchip BatchTool, but the instructions I've read states that the device should be up and with a USB debugging enabled which I am not currently able to do in recovery mode. Device is rooted and working totally fine until this happened.
Anyone got into this kind of problem and able to go through it? Please, any help is greatly appreciated.
P.S
Just let me know if there are any additional info I could give you.
What about hard reset.
May be this link help: https://drfone.wondershare.com/reset-android/hard-reset-android-without-volume-buttons.html
AutomaticSearches said:
What about hard reset.
May be this link help: https://drfone.wondershare.com/reset-android/hard-reset-android-without-volume-buttons.html
Click to expand...
Click to collapse
Hey! Thanks for your reply and time.
I tried every combination of either of the two keys but there is no such recovery menu showing up, and I am pretty sure that this device doesn't have a built-in recovery for factory reset.
If only I could go to its download mode stuff to be able to flash the firmware...
Humble Potato II said:
Hey! Thanks for your reply and time.
I tried every combination of either of the two keys but there is no such recovery menu showing up, and I am pretty sure that this device doesn't have a built-in recovery for factory reset.
If only I could go to its download mode stuff to be able to flash the firmware...
Click to expand...
Click to collapse
May be this site help: http://bluewave-global.com/wave_8.php#frame4
"Long press the power button to restart the device. If restarting fails, hard reset the tablet by poking the Reset hole using a pin. " it is from FAQ
maybe this could help.
1. Press the power button to get the option menu for
Power off
Reboot
Silence phone option.
2. on that menu you have to hold down that power off option on your touch screen while also holding down the home push button on the side of your tablet.
3. This brings up a screen to reboot into safe mode..(these are the 3 steps the company does not tell you that is why no one gets it to work.
4. HIt yes for safe mode and then hold down your power and home buttons on side of tablet till the dopo Logo appears.
5. Release both buttons and hit the power button one time and then hold only the home button down till a menu option appears.
6. Use the home button to move down to factory reset and press the power button to select. Once it says complete then use the power button to select reboot.
Problem solved. Hope this will help everyone out.
The only way is to remove the battery, attached again the battery then power it on their is no hard reset on blue wave the go to settings factory reset

how to fix bootloop?

hey, i've got a problem.
i'm running on Oreo 20r and installed Magisk using TWRP.
after rebooting, my device stucks in a bootloop.
is there any solution for my problem?
flashed magisk 17?
yes...
okay, actually I am currently stucked with the same issue too.
But I just got back my TWRP by doing following :
1) Boot into download mode (https://www.youtube.com/watch?v=_mycJDiFUPk)
2) Still in download mode, press and hold "vol down + power" (this time USB cable is still connected to PC and phone), it will reboot the phone, hold both button till you get in fastboot mode
3) once in fastboot mode, flash back TWRP as per unlocking guide
Now I am still in TWRP, hesitating what to do next. lol
Hope it helps a bit
it's not possible for me.
my device reacts to nothing... no keys, no recovery, no download mode
bootlooping like no tomorrow
maybe you can install KDZ-file using LGUP
or try to flash ZIP-file
https://forum.xda-developers.com/lg-v30/development/rom-eu-lg-h930-21a-rom-t3830169
mrmojoman said:
it's not possible for me.
my device reacts to nothing... no keys, no recovery, no download mode
bootlooping like no tomorrow
maybe you can install KDZ-file using LGUP
Click to expand...
Click to collapse
I just clean flashed back Boombox 1.3 with magisk 16.0, so far booting up good.
I think you need to try again.
The download mode is a bit tricky, need to very fast hold long power button till off, once off, hold the vol up and connect the USB cable to PC. it should trigger the download mode
The bootloop that you have now, is just "LG V30 ThinQ" and the "unlocked bootloader" msg right? same as me I think
maybe you can install KDZ-file using LGUP
I just clean flashed back Boombox 1.3 with magisk 16.0, so far booting up good.
I think you need to try again.
The download mode is a bit tricky, need to very fast hold long power button till off, once off, hold the vol up and connect the USB cable to PC. it should trigger the download mode
The bootloop that you have now, is just "LG V30 ThinQ" and the "unlocked bootloader" msg right? same as me I think
Click to expand...
Click to collapse
it's not possible to turn my device off. i hold power button for minutes and nothing happend. i tried also in combinations with volume keys.
mrmojoman said:
it's not possible to turn my device off. i hold power button for minutes and nothing happend. i tried also in combinations with volume keys.
Click to expand...
Click to collapse
okay, let me try describe my steps in details :
1) Phone is bootlooping, USB cable is connected to Phone, NOT to PC
2) Hold down power button only till the screen becomes "black"
3) Once "black", quickly hold the "vol UP" and connect the USB cable to the PC
4) Now it should show the "download mode"
5) Without removing the USB cable, hold "power + vol DOWN"
6) Once screen becomes "black", release the "power" button, hold the "vol DOWN"
7) Until you see the "fastboot mode"
8) Now you can flash TWRP back using fastboot command from the PC
9) Boot back to TWRP
p/s : yes, the phone cannot be turned off, for long time, but it can be for a very short time. Need to use that short time to trigger all the keys
I have the same problem after flashing Magisk 17. I am in a bootloop between LG black start and root/unlocked bootloader warning screen.
I followed your steps 1-7 in a command line screen (as administrator) and it works but it seems that recovery flash is not working because the command line screen show me a very short time in the recovery flashing work (see attached image).
"fastboot reboot" returns me to the bootloop.
"Power Off" and "Restart" options in the phone returns to me to the bootloop again.
If I unplug the USB cable in the fastboot screen, the phone goes to the splash black screen and does nothing.
WTF!!! it's working.
i tried it one more time like you described it.
think i did it too slow before. booted into TWRP and the rest will be no problem (i hope so).
thank you sooo much!
I have the same problem after flashing Magisk 17. I am in a bootloop between LG black start and root/unlocked bootloader warning screen.
I followed your steps 1-7 in a command line screen (as administrator) and it works but it seems that recovery flash is not working because the command line screen show me a very short time in the recovery flashing work (see attached image).
"fastboot reboot" returns me to the bootloop.
"Power Off" and "Restart" options in the phone returns to me to the bootloop again.
Click to expand...
Click to collapse
you have to reboot directly into TWRP after flashing it!
fastboot boot TWRP***.img
How do you booted into TWRP??
trekminal said:
How do you booted into TWRP??
Click to expand...
Click to collapse
use this description to enter download mode and flash TWRP using fastboot.
but after you flashed TWRP, you have to boot into TWRP via fastboot using this command fastboot boot TWRP-3.2.1-joan-v0.1.img
1) Phone is bootlooping, USB cable is connected to Phone, NOT to PC
2) Hold down power button only till the screen becomes "black"
3) Once "black", quickly hold the "vol UP" and connect the USB cable to the PC
4) Now it should show the "download mode"
5) Without removing the USB cable, hold "power + vol DOWN"
6) Once screen becomes "black", release the "power" button, hold the "vol DOWN"
7) Until you see the "fastboot mode"
8) Now you can flash TWRP back using fastboot command from the PC
9) Boot back to TWRP
Click to expand...
Click to collapse
Yeah! I booted into TWRP, I restored a nandroid from last week and all works fine again. THANK YOU!!
mrmojoman said:
WTF!!! it's working.
i tried it one more time like you described it.
think i did it too slow before. booted into TWRP and the rest will be no problem (i hope so).
thank you sooo much!
Click to expand...
Click to collapse
Hey glad that it works for you too
Sent from my LG-H930 using Tapatalk
mrmojoman said:
use this description to enter download mode and flash TWRP using fastboot.
but after you flashed TWRP, you have to boot into TWRP via fastboot using this command fastboot boot TWRP-3.2.1-joan-v0.1.img
Click to expand...
Click to collapse
how did you reflash Magisk 16 after?
@ChazzMatt HAve you looked at this? Some of are having issues after Magisk updated the Magisk app and then lost root...I guess we shouldnt have flashed 17, but when I try and reflash 16 I get the "updater process error" does that mean my only option is to format SD again, or do I have to start from scratch?
islandfever said:
how did you reflash Magisk 16 after?
@ChazzMatt HAve you looked at this? Some of are having issues after Magisk updated the Magisk app and then lost root...I guess we shouldnt have flashed 17, but when I try and reflash 16 I get the "updater process error" does that mean my only option is to format SD again, or do I have to start from scratch?
Click to expand...
Click to collapse
No, see the last few posts of WTF thread. You just have to uninstall 16 first.
Guys I have a huge problem.....
I uninstalled magical 16 using the official uninstaller.....the device went into a bootloop I was able to boot to recovery but the data is now decrypted.....so tried to use OTG to restore a android backup and now I have a "the backup may not boot unless you change back to ext4"
I am at my wits end kindly help
Edit: came out of it. Thanks
creezalird said:
okay, let me try describe my steps in details :
1) Phone is bootlooping, USB cable is connected to Phone, NOT to PC
2) Hold down power button only till the screen becomes "black"
3) Once "black", quickly hold the "vol UP" and connect the USB cable to the PC
4) Now it should show the "download mode"
5) Without removing the USB cable, hold "power + vol DOWN"
6) Once screen becomes "black", release the "power" button, hold the "vol DOWN"
7) Until you see the "fastboot mode"
8) Now you can flash TWRP back using fastboot command from the PC
9) Boot back to TWRP
p/s : yes, the phone cannot be turned off, for long time, but it can be for a very short time. Need to use that short time to trigger all the keys
Click to expand...
Click to collapse
I am stuck with the same kinda issue. By mistake restarted the Phone after wiping the phone for a fresh rom install. now i can see only the LG boot logo. There is no way to power off the phone. Pressed the power button alone for couple of minute but no use. Tried pressing the Vol Down and power to restart. I get a 1 sec window when the phone is off between the restarts but your method does not work in that short time. Is there a way to power off the phone ?
basically there is no Rom on it and does not detect on the PC when plugged in
Please help if you know anything
rupeshrudy9 said:
I am stuck with the same kinda issue. By mistake restarted the Phone after wiping the phone for a fresh rom install. now i can see only the LG boot logo. There is no way to power off the phone. Pressed the power button alone for couple of minute but no use. Tried pressing the Vol Down and power to restart. I get a 1 sec window when the phone is off between the restarts but your method does not work in that short time. Is there a way to power off the phone ?
basically there is no Rom on it and does not detect on the PC when plugged in
Please help if you know anything
Click to expand...
Click to collapse
Try going to TWRP
1. hold vol down + power till it off
2. Once it shows the first on screen, release the power button and press back the power button (vol down hold)
3. A menu for factory reset will be shown, agree to it 2 times
4. Then it will boot to TWRP ( no data will be deleted )
Sent from my LG-H930DS using Tapatalk

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