Having a bootloop problem and trying to follow this and other threads
https://forum.xda-developers.com/lg-g6/help/lg-g6-h870ds-firmware-upgrade-help-t3791271
Reset doesn't work.
I can't get into the download mode.
Code:
"Just hold down button and power button. Just when you see LG logo leave power button for a second. Push power button again and hold with down button. Now press yes twiche for the hard reset prompt. Now IMPORTANT, when screen goes black immediately press and hold up button. While holding up button plug usb cable into the PC. Now use Uppercut 1.0.0.0 and flash your kdz."
Click to expand...
Click to collapse
and also https://www.android.gs/how-to-enter-download-mode-on-the-lg-g6/
when screen goes black I press but it's already showing 'erasing'
You basically can't turn it off, it will always go back on
Trying to use LGUP and UPPERCUT_1.0.0.0 on logo screen, but it shows as unknown device.
In any case, trying to DL https://lg-firmwares.com/downloads-file/17799/H870DS20f_00_OPEN_HK_DS_OP_1214.kdz
It's going at 9kb/s and usually dies around 5hrs later at 300mb of 3gb.
Searched the web and no mirrors for the kdz.
From my reading you can't do custom roms on DS right? So I need the kdz from that site.
If I ever get into the download mode, is there any chance for me?
I'm in Australia, believe g6 is HK model.
Finnally got H870DS20f_00_OPEN_HK_DS_OP_1214 finished. Got in download mode by running down the battery...
Got LGUP in upgrade mode and went to 100% complete.
Still hanging around seeing if it completes, seems stuck on logo
...
After about 5min, it went to the next bit
"android is starting" or sth. with a prog bar underi it.
That went to 100%, stopped. I looked away for a few min, and the phone's off.
TUrn it on, it's on logo, then 'erasing' again.
Then this loop. So seems same as b4?
------
After a bit found a file LG+G6+H870DSU10s+Mar+2018+Nougat+7+0
Tried the same LGUP in upgrade mode
Got a screen 'encryption failed' some crud, and 'reset phone'
Back to the 'erasing' again.
Related
Stuck in a boot loop after attempting to restore my T-Mobile 801.
It boots up to the T-Mobile splash screen does its little ding a ling thing then 10 seconds later restarts the loop.
I used this http://forum.xda-developers.com/showthread.php?t=2432476
Any other ideas?
Looks like I got it, I did a factory reset on top of it and seems to be working again.
Can you tell me exactly what you did? I seem to be having a similar problem with the Verizon G2 and can't get anything working.
DeBuggz said:
Can you tell me exactly what you did? I seem to be having a similar problem with the Verizon G2 and can't get anything working.
Click to expand...
Click to collapse
After I ran the factory flashing tool, the phone would boot loop (I think most likely because the settings and profile from the last rom wasn't reset by the tool.)
So what I did was use the factory recovery option in the phone by doing the following.
1. Power down the phone (Hold power for 15 Seconds)
2. Press and Hold Vol Down and Power
3. Quickly after seeing the LG logo release the power (while holding Vol Down still) then pressing and holding the power again. You should get a white screen asking if you want to reset your phone press Power to Confirm twice.
A little android pops up and does some work then reboots your phone. The phone should boot after that.
LS980 ZVD
I installed the SplitWindow maker mod from here (http://forum.xda-developers.com/lg-g2/development/mod-splitwindow-mod-maker-g2-stock-roms-t2818522) and and got hit with a bootloop. I tried to reboot to recovery but can't seem to get in. While plugged in the phone refuses to shut off, but when unplugged, I can get it to shut all the way down. From there, I press VolDwn+Power, wait for the LG logo, release, press VolDwn+Power again and hold. It vibrates twice after a few moments but then doesn't do anything. While holding the buttons it will actually continue the bootloop sequence until around 15-20 secs when the screen just cuts off (I assume this is completely shutting down). I can get into download mode right away but can't get into recovery. I've got the stuff for tot to stock set up and ready to go, but I'd hate to lose all of my pictures and backups and everything.
Any thoughts on how to fix this?
While in download mode does Windows recognize the phone? As long as internal storage is mounted in Windows, you can transfer the files to your PC before factory restoring w/ the *.tot file.
redduc900 said:
While in download mode does Windows recognize the phone? As long as internal storage is mounted in Windows, you can transfer the files to your PC before factory restoring w/ the *.tot file.
Click to expand...
Click to collapse
Don't know why, but I got it to drop into Recovery mode.
I held down just the power button for a long time (about 20-25 secs) through the entire power-on to shut down cycle. Even after it cut off, I still held down the power button until it started to reboot again. Once the LG logo displayed, then I held down VolDwn+Power until the screen went blank and the lg logo displayed again. At this point I released and pressed/held VolDwn+Power again and it finally brought me into Recovery.
I read on a reddit or google answer somewhere that you were supposed to hold the power until the lg logo quickly displays (less than a second), then switch to the VolDwn+Power method which didn't actually happen for me here, but inspired me to hold the power down longer than normal.
Hi so I have a T-Mobile LG G2 (D801) which has stock KitKat rom and rooted with custom TWRP recovery, I also installed autorec to fix download mode. I was trying to revert back to Jellybean 4.2 and I bricked my device. I followed this thread
http://forum.xda-developers.com/showthread.php?t=2432476
and used the kdz method. I held volume up button, plugged in the device, got download mode, tried flashing the file and got some kind of error, it was in korean so I couldn't read it. As it was flashing it went up to 6% on the device but thats when the Flashtool gave me an error. I tried to exit download mode by holding down the power button till the LG logo appeared. I did that and when it appeared I unplugged the device. However now the device won't shut off and is stuck at the LG logo screen. So I dissasembled the phone and unplugged the battery cable from the motherboard and it shut off. I then plugged it back in and tried to enter download mode, but nothing happens, it's stuck at the LG logo. If I hold it for 10 sec the screen turns black and LG logo appears again. I also tried holding it down and when screen turns black I hold down power+vol down (to get into recovery), screen turned on with LG logo and I removed both buttons and then held power button for 2 sec and that worked. And I tried to do a factory reset, but it basically freezes at that screen. It is stuck on “factory reset processing” for 20min now. Also I'd like to clarify that this is the stock recovery not the TWRP that I had installed. I tried double the power buttons 3 times in stock recovery to enter TWRP but nothing happens, it just says "factory reset processing".
I'm not sure what I should do now, is there a way that I can flash something via adb and load a custom recovery or rom? Or go back to stock rom?
Please help.
Hi
My phone was stuck at black screen with blue LED light. I waited for it to drain completely, and then charge it so I can flash new firmware. I enter download mode, flash new firmware and it was a success. It restarts and then stuck again on blue screen with Android robot and some like no signal tv effects on the screen, which I think it crashed. Then I forced restart it using vol down+power and it boots up with blue screen wtih "no command" error. I tried restarting it again and it fully dies on me. It won't turn on again.
Button combinations seem not working, no charging indications.
How can I fix this?
Is it bricked? If so, changing motherboard will fix this?
Try leaving it on charge for a while. The charging light should light up. When you go in recovery, on the "no command" screen, press and hold power button and press the vol. up button. That will take you to the admin / recovery screen.
I didn't know it either and was thinking the recovery is corrupt or not working. It is actually waiting for that command from you (power+vol. up). Once in, you can navigate through the menu using vol. up and down to move and power to select an option.
waqar747 said:
Try leaving it on charge for a while. The charging light should light up. When you go in recovery, on the "no command" screen, press and hold power button and press the vol. up button. That will take you to the admin / recovery screen.
I didn't know it either and was thinking the recovery is corrupt or not working. It is actually waiting for that command from you (power+vol. up). Once in, you can navigate through the menu using vol. up and down to move and power to select an option.
Click to expand...
Click to collapse
I manage to get the phone working again and booted up on "No Command" screen again. Holding vol up and power doesn't work. But I manage to do download mode instead, installed new firmware and again, it crashes after Odin successfully pass it.
I attached a photo of the crash.
Btw I think it's charging now but there's no LED light.
-_- Just both this few months ago.
EDIT: also when I restart my phone using vol down, home, and power keys to restart my phone then Vol up+power+home or without home, it skips the factory reset and jumps to "No Command" again. -_-
This is hardware failure.
Go to Samsung service.
darren6matthew said:
Try to flash firmware by restoring partitions with pit file, if not works after this means you have for sure hardware failure
Click to expand...
Click to collapse
Ok I will try that, but can you link me where can I download this pit file? thanks
Update:
I tried to downgrade it, and now I'm stuck installing updates, can't go past it. -_-
oh god, last time Lg G4 gave me headache and now my s7 edge is suffering from abnormalities too. -_-
I had this same problem, I sent the web store that I imported and I am waiting for answers, because it is still under warranty. With each passing day I see more of this problem happening, I find it very worrisome.
Its a hardware issue mate. Had this recently and changed the Mainboard. You should let it replaced if u are in warranty.
Greets
UPDATE:
After flashing different kinds of Nougat firmwares nothing happens. Charging light and key lights are dead at this point. Then I flashed some MM firmware, one of these firmware gives life back to the dead LED lights on the notification and keys but phone still can't get pass the blue screen with "erasing" or "installing updates" message. After multiple times of force rebooting it by pressing vol down+power, it booted itself to recovery mode(thanks god!) and I don't know why. Lol. Wipe cached it and factory reset and still brought me back to "erasing" or "installing updates" blue screen. Then finally, after flashing the UK stock MM, all lights came back to life. It's working fine right now and I don't think I'll update it to Android N just yet.
coowkeee said:
UPDATE:
After flashing different kinds of Nougat firmwares nothing happens. Charging light and key lights are dead at this point. Then I flashed some MM firmware, one of these firmware gives life back to the dead LED lights on the notification and keys but phone still can't get pass the blue screen with "erasing" or "installing updates" message. After multiple times of force rebooting it by pressing vol down+power, it booted itself to recovery mode(thanks god!) and I don't know why. Lol. Wipe cached it and factory reset and still brought me back to "erasing" or "installing updates" blue screen. Then finally, after flashing the UK stock MM, all lights came back to life. It's working fine right now and I don't think I'll update it to Android N just yet.
Click to expand...
Click to collapse
I'm facing the same problem, Can you pass me a step by step friend please?
Hello..my phone keeps flickering i dont know whats the problem..i already thurned it off many times but when i switch it on it keeps on flickering my phone is s7..i dont know what to do..hoping that somebody will answer me
coowkeee said:
UPDATE:
After flashing different kinds of Nougat firmwares nothing happens. Charging light and key lights are dead at this point. Then I flashed some MM firmware, one of these firmware gives life back to the dead LED lights on the notification and keys but phone still can't get pass the blue screen with "erasing" or "installing updates" message. After multiple times of force rebooting it by pressing vol down+power, it booted itself to recovery mode(thanks god!) and I don't know why. Lol. Wipe cached it and factory reset and still brought me back to "erasing" or "installing updates" blue screen. Then finally, after flashing the UK stock MM, all lights came back to life. It's working fine right now and I don't think I'll update it to Android N just yet.
Click to expand...
Click to collapse
bro may step by step ka ba panu mo nasolve? pareho kasi ng nangyari sa s7 ko
Hi,
I have a new a20e (a202f) out of the box.
I followed another guide to root and install twrp which turns out was wrong. I unlocked the bootloader just fine.
I have no backup, no personal boot.img or anything.
Essentially I am stuck in download mode and restarting takes me straight back to download mode.
Recovery: Error validating footer.
SW REV. CHECK FAIL (BOOTLOADER) DEVICE"
Cheers guys
What guide did you follow? You have to download your stock fw from sites like sammobile then from there you can have the boot.img and etc. Have you tried flashing stock fw using odin?
Note: Usually you flash vbmeta for footer error when you flash twrp.
Deluriane said:
What guide did you follow? Have you tried flashing stock fw using odin?
Note: Usually you flash vbmeta for footer error when you flash twrp.
Click to expand...
Click to collapse
It was a guide on 'unofficialtwrp.com' - I can't link things here yet.
I have since tar'ed an unpatched twrp (TWRP-3.3.1.0_A20_by_Agrim720.img) + vbmeta.img + boot.img (from https://forum.xda-developers.com/galaxy-a20/help/boo-img-a205fxxu2asfb-t4008739), then I flashed through AP on Odin and now I think it boots past the download mode but instead it now has fuzzy dark red screen with nothing legible.
Oh bugger, I've been a class A plum.
Can I get out of this horrible mess?
craigywaigy said:
It was a guide on 'unofficialtwrp.com' - I can't link things here yet.
I have since tar'ed an unpatched twrp (TWRP-3.3.1.0_A20_by_Agrim720.img) + vbmeta.img + boot.img (from https://forum.xda-developers.com/galaxy-a20/help/boo-img-a205fxxu2asfb-t4008739), then I flashed through AP on Odin and now I think it boots past the download mode but instead it now has fuzzy dark red screen with nothing legible.
Oh bugger, I've been a class A plum.
Can I get out of this horrible mess?
Click to expand...
Click to collapse
Well you have to use your own boot.img from your fw, not all of use the same fw that's why, some are still on u2, u3 and u4. Maybe the boot.img you got isnt the same as your fw.
Well you can start from scratch and reflash your stock fw in odin.
https://www.sammobile.com/firmwares/
Deluriane said:
Well you have to use your own boot.img from your fw, not all of use the same fw that's why, some are still on u2, u3 and u4. Maybe the boot.img you got isnt the same as your fw.
Well you can start from scratch and reflash your stock fw in odin.
Click to expand...
Click to collapse
Yep, but now I can not get back to download mode. Any pointers?
craigywaigy said:
Yep, but now I can not get back to download mode. Any pointers?
Click to expand...
Click to collapse
Try holding volume - and power and your phone will turn off, as soon as it turns off press volume + & - and plug your usb cable that is connected to a computer.
No luck with that. It displays the message about running custom os etc and to press power to continue. So I press it and it boots to the messed up red/pink/black display.
craigywaigy said:
No luck with that. It displays the message about running custom os etc and to press power to continue. So I press it and it boots to the messed up red/pink/black display.
Click to expand...
Click to collapse
Do you mean like the one attached? If yes you havent booted to download mode.
Try booting to recovery by holding volume + and power while you turn on the phone.
There is a option there to boot to download mode.
Deluriane said:
Do you mean like the one attached? If yes you havent booted to download mode.
Try booting to recovery by holding volume + and power while you turn on the phone.
There is a option there to boot to download mode.
Click to expand...
Click to collapse
Yes that screen. I've tried your suggestion with volume + but that also ends up with messed up screen
Yes so currently I'm unable to get to recovery (not sure it even flashed properly), unable to get to download mode, or to get the device recognised in odin.
I'm unable to power off. The screen is blank and when I press power it flickers shortly with some black/white/red pink colours around the edges, but the screen quickly turns blank.
From this position I can only restart by holding volume - and power.
This boots to the samsung logo and then the 'bootloader unlocked' warning. No amount of button configs have proved successful so far, and then I end up back at the blank screen.
I'm happy to start from scratch. I have downloaded the stock firmware but I'm simply unable to proceed.
Aslo the device is not recognised in windows at any point.
Thanks guys
craigywaigy said:
Yes so currently I'm unable to get to recovery (not sure it even flashed properly), unable to get to download mode, or to get the device recognised in odin.
I'm unable to power off. The screen is blank and when I press power it flickers shortly with some black/white/red pink colours around the edges, but the screen quickly turns blank.
From this position I can only restart by holding volume - and power.
This boots to the samsung logo and then the 'bootloader unlocked' warning. No amount of button configs have proved successful so far, and then I end up back at the blank screen.
I'm happy to start from scratch. I have downloaded the stock firmware but I'm simply unable to proceed.
Aslo the device is not recognised in windows at any point.
Thanks guys
Click to expand...
Click to collapse
Are you sure you pressed and hold volume +&- and plugging cable before the samsung logo pops up? You have to do it quickly right after the device turns off. You shoudn't see the bootloader warning if you done this quickly and correctly.
craigywaigy said:
Yes so currently I'm unable to get to recovery (not sure it even flashed properly), unable to get to download mode, or to get the device recognised in odin.
I'm unable to power off. The screen is blank and when I press power it flickers shortly with some black/white/red pink colours around the edges, but the screen quickly turns blank.
From this position I can only restart by holding volume - and power.
This boots to the samsung logo and then the 'bootloader unlocked' warning. No amount of button configs have proved successful so far, and then I end up back at the blank screen.
I'm happy to start from scratch. I have downloaded the stock firmware but I'm simply unable to proceed.
Aslo the device is not recognised in windows at any point.
Thanks guys
Click to expand...
Click to collapse
Hello -
Please trust me when I tell you that it can be fixed. I had the EXACT same problem and drove me crazy for 24 hours. You can deffinetly fix your phone once you get to download mode.
I had the same issue where I could not turn the phone OFF it just looped back and I pushed buttons for hours to no avail... Then some one told me it WILL WORK, it is just the timing of
the button pushing, AND the USB cable plug in. Sure enough he was right. It took me alot of tries and I even took my phone apart and un plugged the battery so I could controll the power
ON / OFF better and time the button's easier. Here is what I did ...
unplug battery so phone was 100% OFF.
Plug in battery ( phone is still OFF )
Hold Vol - then Hold Power and Vol -
As soon as the power started IMEDITALY PLUG IN USB ( have USB READY to be plugged in FAST )
DONT let go of buttons ... screen will flash quickly and then Imediatly let go of power keep holding Vol -
IF you timed this right, IT WILL proced to download mode. If not, then start over again from power OFF ( step 01 )
It took me 3 tries to get it ( after 50+ tries before ) lol
Now I am not sure about the battery unplugging ... maybe you dont need to, but it mad it work for me as I could control the power ON part of this now.
Getting to your battery is not very hard and there is a you tube video on how to do it... if you need help just PM ME.
Good luck friend.
When this happened to me all I did was hold volume up and volume down. Kept cord connected to computer. Connected to device during the bootloop and boom within seconds I was in download mode. It catches it once screen goes off in between the bootloop.
Sent from my SM-N950U using Tapatalk
Thanks you guys. In the end the battery died and then I could power up whilst holding vol+, straight to recovery and then I could flash stock rom.
Much appreciation for your help guys, it got me out of a pinch - it is my mother-in-law's new phone!
craigywaigy said:
Hi,
I have a new a20e (a202f) out of the box.
I followed another guide to root and install twrp which turns out was wrong. I unlocked the bootloader just fine.
I have no backup, no personal boot.img or anything.
Essentially I am stuck in download mode and restarting takes me straight back to download mode.
Recovery: Error validating footer.
SW REV. CHECK FAIL (BOOTLOADER) DEVICE"
Cheers guys
Click to expand...
Click to collapse
can you help me i have the same problem idk how to fix it help