So im trying to root my lg k20 plus. I flash the twrp recovery image and it says everything is successful. Then reboot to the factory reset screen by holding volume down and power then releasing power when i see the lg logo and pressing again. I guess the k20 plus doesnt have a regular recovery screen all it is is a factory reset anyways select yes twice to reset and it should boot into twrp recovery. only mine won't.. it goes to the screen with a yellow exclamation point that says "your device software cannot be checked for corruption. lock bootloader", and then will flash the lg logo and go straight back to the other screen and just cycle over and over forever. i can just press power and it will boot up like normal but i can't get to twrp recovery. I;ve tried recovery images from two other sources but nothing still any help would be appreciated
Randallray2711 said:
So im trying to root my lg k20 plus. I flash the twrp recovery image and it says everything is successful. Then reboot to the factory reset screen by holding volume down and power then releasing power when i see the lg logo and pressing again. I guess the k20 plus doesnt have a regular recovery screen all it is is a factory reset anyways select yes twice to reset and it should boot into twrp recovery. only mine won't.. it goes to the screen with a yellow exclamation point that says "your device software cannot be checked for corruption. lock bootloader", and then will flash the lg logo and go straight back to the other screen and just cycle over and over forever. i can just press power and it will boot up like normal but i can't get to twrp recovery. I;ve tried recovery images from two other sources but nothing still any help would be appreciated
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Try this thread.....
https://forum.xda-developers.com/android/development/recovery-twrp-v3-lg-k20-plus-t3616248
Did you save the twrp "recovery.img" as a different name? At first i named it something else and had the same problem. I just renamed it "recovery" and all was well.
Randallray2711 said:
So im trying to root my lg k20 plus. I flash the twrp recovery image and it says everything is successful. Then reboot to the factory reset screen by holding volume down and power then releasing power when i see the lg logo and pressing again. I guess the k20 plus doesnt have a regular recovery screen all it is is a factory reset anyways select yes twice to reset and it should boot into twrp recovery. only mine won't.. it goes to the screen with a yellow exclamation point that says "your device software cannot be checked for corruption. lock bootloader", and then will flash the lg logo and go straight back to the other screen and just cycle over and over forever. i can just press power and it will boot up like normal but i can't get to twrp recovery. I;ve tried recovery images from two other sources but nothing still any help would be appreciated
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Did you find a solution? 3 yrs later.
Related
I have installed CyanogenMod on many devices before, and have never had as many issues as with the LG G2.
I was able to install CWM Recovery, and I used that to backup my existing ROM, and to Install CM-10.2, the build for the vs980.
After installing, and rebooting, I am getting stuck on an infinite boot screen. And I have no idea how to bot into recovery.
The default boot to recovery / factory reset screen is supposed to be, holding the power button until the LG Logo appears, then prelease, and hold again... This does not work, it just goes right back into trying to boot CM.
If I hold Power + Vol+, I enter some Firmware Update screen.
How would one enter CWM Recovery using only hardware? And how can I fix my infinite bootloop?
Any and all help is greatly appreciated.
**Edit**
I found out that I was going into this mode, and not recovery / factory reset... because I was still plugged in via USB... As soon as I unplugged, I was able to do this as expected.
Mod, please delete. I am unable, and I have solved my own problem.
I tried mobile odin to re flash my already rooted and cyanogen'd note 3 back to a root ed stock rom,
After hitting the go button it reset and now will only reset into reboot recovery mode.
I have since tried odin connected to a pc and this shows it as added so I think it is connected ok, I have a rom and that shows up as fine and when I click start it reports the SetuConnection message and just sits there.
The problem I have is that it won't reboot into download mode no matter what i try.
Additionally, when I boot I see the recovery reboot message for a second and the Samsung logo and then the screen goes black and stays that way. Bth the capacitive buttons vibrate when you touch them but do nothing else and the volume seems to change the volume up and down. Still with the black screen though
Anyone come across this or have any ideas.
Ta
it could be your recovery image is broken somehow. make sure your phone is off. try download latest custom recovery. i recommend either twrp or philz touch cwm. while phone is off, press home + power + volume down. when you see a warning screen, press volume up. this will go to download mode. flash new recovery via odin.
i had issues before with custom recovery causing recovery boot loop. the only confirm working recovery for me is cwm philz touch and twrp.
so I was having some battery issues and wanted to reset. i for some reason went to settings reset instead of booting to twrp to reset. nonetheless it booted to twrp. I wanted an all the way clean data install so I hit format data and rebooted. now it just keeps booting into twrp. i restored a backup which sys successful but it still goes back to twrp. I can get into fastboot, recoveery. and download mode. I just cant boot into the system.. any help would be appreciated. with no kdz available I dont know what to do..
EDIT FIXED: so apparently you cannot boot to twrp to reset from the factory reset screen on the phone. once I booted to twrp manually and rebooted it started up. really weird.
having same issue with us996 now cant boot to system followed root instructions to factory reset now i cant boot to anything other than twrp whats the button combo and chould u provide detailed instructions please?
Franzferdinan51 said:
having same issue with us996 now cant boot to system followed root instructions to factory reset now i cant boot to anything other than twrp whats the button combo and chould u provide detailed instructions please?
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Press power and volume down at same time. When lg logo appears realeasw the power button for 1 sec and repress. Then when you get to the all white reset screen press yes and yes again on the next screen. This will get you back into twrp. You might need to reflash the recovery img(not sure, but I did). Restore your backup or whatever and then reboot system. Might have to format data within twrp prior to restore. Think I did that too.
pretty sure im screwed until a rom is released i tried what you said i chouldnt get a white screen to appear still went to twrp directly and it seems i accidently deleted my restore point >< can h918 flash on us996? even though its tmobile?
so i got it booting but it keeps rebooting after a getting to home screen a notification pops up and says android is upgrading when finished it reboots
Franzferdinan51 said:
so i got it booting but it keeps rebooting after a getting to home screen a notification pops up and says android is upgrading when finished it reboots
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Try factory resetting again maybe
Swizzle82 said:
[SNIP] You might need to reflash the recovery img(not sure, but I did). [/SNIP]
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For reasons I'll never understand, I ended up in this situation with my H918 after doing an accidental factory reset (tried entering TWRP but TWRP wasn't installed... oops!) and re-rooting. After installing TWRP 3.0.2-1, I was completely unable to boot to system. I tried reflashing various stock partitions and a custom ROM, relocked and unlocked the bootloader a few times, and wiped/formatted/reparitioned the crap out of the poor thing. In the end, the only thing that worked was to flash TWRP a second time. Go figure.
Thanks for being so thorough in describing what you tried on the road to success!
I keep getting sent to twrp. Not sure how to fix it. I can't boot android. Have tried reinstalling roms. nothing working.
when i use button combo to boot into twrp it go to twrp then starts to boot up phone and sits at lg logo after i tried restore a backup. even after factory reset it loads 100% but never boots up
DOBBY0 said:
I keep getting sent to twrp. Not sure how to fix it. I can't boot android. Have tried reinstalling roms. nothing working.
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follow the instructions from post #3 it worked for me.
Franzferdinan51 said:
having same issue with us996 now cant boot to system followed root instructions to factory reset now i cant boot to anything other than twrp whats the button combo and chould u provide detailed instructions please?
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since you're having this problem with TWRP , it means you've rooted the phone right?
asking cz i'm looking to get the LG V20 but don't know about the risk of it bootlooping itself, without rooting or anything like that, like it used
to happen on lg g4 and g3.
Thank you
maybe https://forum.xda-developers.com/v20/help/lg-v20-access-to-fastboot-t3557328
You most likely don't need to go through all of those hoops in the link above.
Have you tried power on and volume down to go through the factory reset screens.
A bunch of us had this problem and it was because an update downloaded on it's own and the bootloader snoops it out and forces recovery to boot.
Just do the volume down + power button - as soon as you see the lg logo release power only then immediately re-press power and continue holding power and volume down until the factory reset screen pops up. Select yes and yes, (don't worry - if you have twrp recovery it can't reset). It will boot you into TWRP and I'm pretty sure it will delete the update files in fota folder.
In TWRP select reboot - system and it should boot normally like nothing happened.
Swizzle82 said:
Press power and volume down at same time. When lg logo appears realeasw the power button for 1 sec and repress. Then when you get to the all white reset screen press yes and yes again on the next screen. This will get you back into twrp. You might need to reflash the recovery img(not sure, but I did). Restore your backup or whatever and then reboot system. Might have to format data within twrp prior to restore. Think I did that too.
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I ran into this issue and did as you wrote to re-flash Lineage 14 and it WORKED! Took me hours to get to this post, but after some searching around i'm so relieved and so much less frustrated! Thank you for your input!
The issue I am having is that I wanted to set my phone back to factory, after I relocked the bootloader my phone when booting(with or without the volume keys) would shut off right after showing the ZTE boot screen. Now when I connect it, it shows up as HS-USB QDLoader 9008 (COM5)..
Ive been looking at these two forums similar to my problem:
https://forum.xda-developers.com/axon-7/help/bricked-a2017u-t3573798
https://forum.xda-developers.com/axon-7/help/a2017g-totally-bricked-t3537990
I understand I should use the axon7tool(When I try "axon7tool -r boot" i get failed to connect) , but I dont know exactly what I am doing.. I apologize for me being so dumb about this but if someone could please spell out exactly what I would have to do, to get my phone back to factory settings. Any help would be greatly appreciated.
RECAP: Bootloader locked, shows up as HS-USB QDLoader 9008 (COM5), It did have TWRP.
EDIT: When trying MiFlash, I get a ERROR_BAD_FORMAT 0
I just did the exact same thing you did and had the same issue. What worked for me was downloading the factory image from ZTE, putting it on an SD card, going into stock recovery (vol up + power) and select apply update from sd card. The file you download from ZTE is double zipped, so make sure to extract the update.zip file from the parent zip before you put it on the SD card. It will be in a folder with the same parent zip name. I no longer can boot into bootloader from stock recovery (not sure if that's normal), but at least my phone works again. Here's the link.
https://www.zteusa.com/axon-7#support
Hope this helps.
EDIT: I also had TWRP when I locked my bootloader, so I'm assuming you're able to get to stock recovery with volume up + power.
Doesnt let me boot into anything.. Not sure how I screwed it up this badly. Im trying a MiFlash method right now to see if it helps
what happens when you hold down volume up and power button at the same time? you should feel a vibrate and when you let go, you should see the stock recovery.
No, Just shuts off after the ZTE logo pops up
The phone might still be on at that point. When the ZTE logo would pop up for a split second for me, MiFlash was able to see the phone. What happens when you just hold the power button for about 10 seconds right after the screen goes off? Does it stay off?
I believe you are right, when the logo isnt up(after it disappears) that is when it connects as the COM5 otherwise when the logo pops up it disconnects the resumes the cycle.
so if I hold it, it just keeps showing the ZTE logo then shutting off
Just to clarify, holding down both the volume up and power button simultaneously at the same time for at least 3-5 seconds after the phone is off (not after the screen goes blank after the ZTE logo) still gives the same result as if you just pressed the power button?
Yes.
If MiFlash can see the phone, maybe you can unlock the bootloader again?
exact same problem as you, except MiFlash successfully flashes B19 but it still doesn't boot
What you need is FLASH stock recovery in EDL Mode.
That will fix your problem..
P.S. as soon you boot your device after Flashing stock recovery ,will perform a factory reset.
DrakenFX said:
What you need is FLASH stock recovery in EDL Mode.
That will fix your problem..
P.S. as soon you boot your device after Flashing stock recovery ,will perform a factory reset.
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I'm on stock recovery but I still get stuck on ZTE logo
Fazedyrus said:
I'm on stock recovery but I still get stuck on ZTE logo
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You should download YOUR variant SDCARD UPDATE zip and flash using stock recovery.
DrakenFX said:
You should download YOUR variant SDCARD UPDATE zip and flash using stock recovery.
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Click to collapse
"E:failed to map file, Installation Aborted"
I have not tried to flash a redownloaded version of B15 because I cannot move the file onto my sd card. I was able to flash a signed twrp on locked bootloader before to enable MTP, but whenever I flash a signed twrp now, I just get stuck on zte screen. Why is this phone so inconsistent?
Hi!
As the title says, TWRP is not working, when I flash it, fastboot says it's successful, so I turn off phone (hold power button), then I try to boot straight to recovery (hold volume up, volume down and power at the same time), phone vibrates, I let go of power but screen is pitch black, so I try again (I again flash TWRP), this time I hold power until Lenovo logo shows up, but It doesn't, screen is pitch black, so I boot system and turn off the phone, boot to recovery and stock shows up, so I know I can boot to recovery. Bootloader is unlocked and I have already flashed TWRP on this phone, I just returned to stock ROM so I lost it.
TWRP: https://forum.xda-developers.com/k4-note/development/recovery-twrp-3-0-2-0-touch-recovery-t3530374
I try to use TWRP 3.1.1, used that one before and it worked.
Edit:
I did the same thing and it decided to work, phone just went all r****d on me yesterday.