Database Users

Nexus 4 booting up really slow after CWM install

I installed CWM-SuperSU-v0.99.zip using adb on my phone and now my phone won't boot back up! It gets stuck on the loading screen.
What did I do wrong? Do I need to boot into recovery?
Thanks. I'm new.

Please explain exactly what you did. I need more info to help.

have you tried force rebooting it(10-20 second power button press)?

El Daddy said:
Please explain exactly what you did. I need more info to help.
Click to expand...
Click to collapse
I followed this video to root the phone:
I then decided that I wanted to un-root it. So I fastbooted fastboot oem lock, but decided to unlock it again and go back to the original base band. Now with the phone rooted, I restarted it and now it's just stuck on the Google X loading screen. Help please!

Reboot the phone, holding down power and volume down. It should boot you into the bootloader. Then go to recovery and wipe data. Then reboot.
If that doesn't work you'll have to flash the stock recovery and factory reset from there.

El Daddy said:
Reboot the phone, holding down power and volume down. It should boot you into the bootloader. Then go to recovery and wipe data. Then reboot.
If that doesn't work you'll have to flash the stock recovery and factory reset from there.
Click to expand...
Click to collapse
THANK YOU, THANK YOU, THANK YOU. You saved me.
Can you tell me now what I have to do to unroot it? Do I lock bootloader then factory reset, or factory reset then lock bootloader? Is the factory reset how you install the stock OS?
Thanks!

Efrant made a great guide how to go back to stock. http://forum.xda-developers.com/showthread.php?t=2010312
After you complete that you then relock the bootloader if you so choose.

lg v20 h918 twrp bootloop

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?
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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!

LG G2-D802 , power on - lg logo - black screen, doesn't boot up.

Hello,
I tried installing custom rom on my G2 , here is what I did (more or less)
- rooted the phone - I think with ioroot
- flashed twrp (I think with flashify)
- couldn't boot into recovery, got "Certificate error"
- used autorec
- now twrp recovery worked.
- wiped data / cache / system
- installed Crdroid / lineageos + gapps
- rebooted
And from that point I'm stuck, I get the LG screen for a sec and then a black screen.
To boot up again I flashed the stock rom, but I want custom!!!
what can I do ?
BTW, in some of the guides I saw it said that I need to unlock the bootloader ? but when I try the guide and use the first command to boot into bootloader, all it seems to do is just reboot the system regularly.
did this "adb reboot bootloader" and that is it, "fastboot oem unlock" just said "Waiting for device"
thank you.

wolfgangam31 said:
Hello,
I tried installing custom rom on my G2 , here is what I did (more or less)
- rooted the phone - I think with ioroot
- flashed twrp (I think with flashify)
- couldn't boot into recovery, got "Certificate error"
- used autorec
- now twrp recovery worked.
- wiped data / cache / system
- installed Crdroid / lineageos + gapps
- rebooted
And from that point I'm stuck, I get the LG screen for a sec and then a black screen.
To boot up again I flashed the stock rom, but I want custom!!!
what can I do ?
BTW, in some of the guides I saw it said that I need to unlock the bootloader ? but when I try the guide and use the first command to boot into bootloader, all it seems to do is just reboot the system regularly.
did this "adb reboot bootloader" and that is it, "fastboot oem unlock" just said "Waiting for device"
thank you.
Click to expand...
Click to collapse
connect it to computer. does it shows qhsusb_bulk in device manager? if qhsusb_bulk mode then use unbrick tutorial or use srktool to unbrick...

Nah.
U just didnt flashned boostack.
Go to twrp (power + vol up)
It will ask u abount factory reset. Press Yes 3 times ( dont worry nothing will be erased).
In twrp do again wipe ( system, data, cache,davlik)
Install caf bootstack. In download select ur variant. (https://forum.xda-developers.com/lg-g2/development/boot-g2-hybrid-bootstacks-t3183219)
Than install rom + gapps.
It should work.

bk2601 said:
Nah.
U just didnt flashned boostack.
Go to twrp (power + vol up)
It will ask u abount factory reset. Press Yes 3 times ( dont worry nothing will be erased).
In twrp do again wipe ( system, data, cache,davlik)
Install caf bootstack. In download select ur variant. (https://forum.xda-developers.com/lg-g2/development/boot-g2-hybrid-bootstacks-t3183219)
Than install rom + gapps.
It should work.
Click to expand...
Click to collapse
This worked! thanks

bk2601 said:
Nah.
U just didnt flashned boostack.
Go to twrp (power + vol up)
It will ask u abount factory reset. Press Yes 3 times ( dont worry nothing will be erased).
In twrp do again wipe ( system, data, cache,davlik)
Install caf bootstack. In download select ur variant. (https://forum.xda-developers.com/lg-g2/development/boot-g2-hybrid-bootstacks-t3183219)
Than install rom + gapps.
It should work.
Click to expand...
Click to collapse
i got the same problem months ago.
it worked fine.:good:

I have the same issue, except I can't get into TWRP. I flashed a bumped stock bootstack and am stuck with the LG logo to black screen. Factory reset screen asks to press power to confirm, just goes back to black screen afterwards. TWRP won't load up no matter the combination. I can get to download mode, if that helps any.

Arak0n said:
I have the same issue, except I can't get into TWRP. I flashed a bumped stock bootstack and am stuck with the LG logo to black screen. Factory reset screen asks to press power to confirm, just goes back to black screen afterwards. TWRP won't load up no matter the combination. I can get to download mode, if that helps any.
Click to expand...
Click to collapse
did you manage to fix this? I'm alsostuck at this, flashing stock rom show skipping partition to me.

I ended up using the download mode to flash a Kitkat kdz with the LG Flashtool 2014, then rooted, flashed TWRP with autorec, then ran mr. bump, installed TWRP 3.1.0, and restored my nandroid backup.

Moto G4 recovery boot loop

I really need help here. New to rooting androids, will pay BTC for whoever can help me.
I started off fine, unlocked my bootloader, flashed to TWRP and installed supersu. * I WAS ABLE TO BOOT INTO SYSTEM HERE *
I then tried to flash some other stuff and got stuck where it would only boot to TWRP.
Downloaded the stock firmware to flash it (XT1625) and ran all the commands.
Still everytime I reboot it goes into recovery mode.
Any help?

I have tried to do factory reset directly from phone menu. This got me into TWRP. I have selected factory reset again.
Then I was able to boot only to TWRP, not system.
I have fixed it by booting into booloader (power + vol downs) and to select START. Then it started to system OK.
Not sure if this is your case.
okplshelpthanks said:
I really need help here. New to rooting androids, will pay BTC for whoever can help me.
I started off fine, unlocked my bootloader, flashed to TWRP and installed supersu. * I WAS ABLE TO BOOT INTO SYSTEM HERE *
I then tried to flash some other stuff and got stuck where it would only boot to TWRP.
Downloaded the stock firmware to flash it (XT1625) and ran all the commands.
Still everytime I reboot it goes into recovery mode.
Any help?
Click to expand...
Click to collapse

^this works !

novakmi said:
I have tried to do factory reset directly from phone menu. This got me into TWRP. I have selected factory reset again.
Then I was able to boot only to TWRP, not system.
I have fixed it by booting into booloader (power + vol downs) and to select START. Then it started to system OK.
Not sure if this is your case.
Click to expand...
Click to collapse
Thank you very much for your tutorial which helped a lot.
What did you do to keep it from booting into recovery upon the next reboot? Mine goes into recovery-loop again once I do regular reboot from the system. There might be a software switch somewhere.
Thanks alot

KlausR said:
Thank you very much for your tutorial which helped a lot.
What did you do to keep it from booting into recovery upon the next reboot? Mine goes into recovery-loop again once I do regular reboot from the system. There might be a software switch somewhere.
Thanks alot
Click to expand...
Click to collapse
Hello, I didn't observe such issue. Reboots from system are ok for me.

Download the correct firmware for your phone, if it is AMZ variant then download AMZ firmware.

Not booting into TWRP

Hey everyone,
I decided to root my lg g6 and got a fickle. After unlocking the device and flashing TWRP I tried to boot into it (''adb reboot recovery'' command) and it deleted all data and then twrp shows on screen for a split second and almost instantly boots normally into android so I set it up while still being unable to access twrp and any of it's functions. Does anyone have any idea what could be the problem?
P.S. Of it helps: before that i had a problem that every time I tried to use the ''adb reboot recovery'' command the console said ''no devices/emulators found''. After a couple tries I wanted to check whether the phone was connected just to make sure (''adb devices'') and after that it worked and I ran into the problem above.
Thanks for all the answers

When you first unlock BL and flash recovery you have to manually enter recovery mode.
Hold power and vol down till it turns off. Hold same buttons again until you see lg logo. Release power and press and hold again.
Then ask you to wipe etc hit yes both times and it will boot to twrp.

I tried that but it still doesn't go into twrp. After confirming that wipe stuff it just boots into android (without wiping)

Ulrih said:
I tried that but it still doesn't go into twrp. After confirming that wipe stuff it just boots into android (without wiping)
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Click to collapse
You have to flash TWRP recovery and when it complete then use the button combo to boot into twrp, otherwise it will boot and restore the recovery.
flash twrp
button combo to twrp
done

Yes I've done that but the problem still exist.
btw thanks for the help

Maybe try fastboot flash recovery recovery.img

Try the all-in-one tool on this forum

By the way, I am running into the same issue.. I have a LG G6 US997,.. I have tried installing TWRP unofficial ones so many times and every time i manually try to access the recovery.. the phone simply wipes all my data to default

Hello,
I have the same problem. Did anyone figure out how to solve it? I'd highly appreciate any help.
If I try to boot into recovery, it asks me to factory reset, i hit yes twice and then the phone just goes on to boot normally. The data is not wiped but I can't get into TWRP.
If I enter "fastboot reboot recovery" after flashing TWRP it returns "fastboot: usage: unknown reboot target recovery"