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[SOLVED] Locked Bootloader -- Bootloop. How to save data?

Guys, I'm stuck.
So, I had my Nexus 4 wonderfully running the latest CM11 nightly. Then the Lollipop Factory Image for Nexus 4 came out. My bootloader was unlocked and had TWRP custom recovery. Then in fastboot mode, I flashed the new Lollipop factory images, except the userdata.img. By doing this, I replaced TWRP with stock recovery. Then I restarted the phone.
It stuck in the twirling colorful circles for 2+ hours. I heard it needed 10 minutes or so to fully load Lollipop. But 2 hours? So I then started troubleshooting. One of the first thread I stumbled upon suggested for me to re-lock the bootloader, which I stupidly did. It did not fix the problem. Now I'm stuck!
I'm unable to boot. Stuck in the twirling circles animation for hours.
I have no custom recovery, so I can't load custom ROMs.
I have no unlocked bootloader, so I can't reflash the factory images (or downgrade to stock 4.4.4).
And if I unlock the bootloader, I will lose ALL of my user data, including photos, music, and the Titanium Backups of all my app data, SMS, call logs, etc.
I tried flashing the latest CM11 nightly through ADB sideload within stock recovery, but I get the 'signature verification failed'. Is there a 'signed' ROM I could sideload through stock recovery?
Would ADB sideloading the Nexus 4 Lollipop OTA zip through stock recovery fix this problem? I'm downloading the OTA zip right now.
EDIT: Sideloading the OTA zip did the trick! I'm staring at Android is upgrading... right now. Thanks XDA for the thought process, wouldn't have solved it without posting this thread. Although, please note that at this time, I essentially have Android 5.0 installed, but having bootloop. I can't guarantee that this will work if you bootloop while having custom ROM or Kit Kat installed.
What else I could do to save my data? I'm out of ideas.
EDIT: To save my data, because now I'm able to boot to Lollipop (by flashing official Google Android 5.0 Lollipop OTA zip through stock recovery ADB sideload; see above solution), I'm gonna transfer all the files in storage/emulated/legacy (the internal sdcard) to my PC. I will then unlock the bootloader through fastboot, thus wiping all data on the phone. Then I'll just move everything back from PC to the phone. I should have done this in the first place!
HLEP.

You lost all data as soon as you locked it. Just saying.
Sent from my HTC One_M8 using Tapatalk

Misledz said:
You lost all data as soon as you locked it. Just saying.
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
This is untrue. I was unable to boot, but after flashing the OTA zip, I can boot to Lollipop and I still have everything, even my old apps, without needing to reinstall anything. Granted, there are errors here and there (probably due to dirty flash upgrade), but my data is intact.
As I said, I previously had TWRP, CyanogenMod 11, root and unlocked bootloader. Now I have Android 5.0 Lollipop, no root, a locked bootloader and all of my data. I wanted to show you my bootloader screen, but I have no other camera with me. The screenshots below should suffice.
Check attachment for proof.

Ah. I thought you were locked out being unable to boot. Anyways, you can back it up via Holo Backup, might wanna check it out
Sent from my HTC One_M8 using Tapatalk

Misledz said:
Ah. I thought you were locked out being unable to boot. Anyways, you can back it up via Holo Backup, might wanna check it out
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Yes, I was unable to boot. Then, I replaced custom recovery with stock recovery. Then I stupidly locked the bootloader. It's all good now.
I've never heard of Holo Backup before. It seems like the perfect solution for me, as I don't have root right now! And transferring 13GB of files via MTP or Wi-Fi will take ages.
Thanks a lot for the suggestion. I'm giving it a shot.

Need help !

Hey guys I recently restored a nandroid on my 6p from a 7.1.1 rom but I get stuck on boot logo now when j go to recovery(TWRP) all my files are completely gone? and it says something about encryption ...did I brick my device? And if not what steps do I have to do to get back up and running again? Like download rom gapps and SuperSU all over again on my PC etc..? I know my bootloader is unlocked still and I have to be rooted still since I can go to twrp so any help will be appreciated thanks.

Jiggs82 said:
Hey guys I recently restored a nandroid on my 6p from a 7.1.1 rom but I get stuck on boot logo now when j go to recovery(TWRP) all my files are completely gone? and it says something about encryption ...did I brick my device? And if not what steps do I have to do to get back up and running again? Like download rom gapps and SuperSU all over again on my PC etc..? I know my bootloader is unlocked still and I have to be rooted still since I can go to twrp so any help will be appreciated thanks.
Click to expand...
Click to collapse
I am not exactly an expert, but I would recommend to flash back the latest image from Google...go back to completely stock and then if you want root and install TWRP again. Good news is your bootloader is still unlocked, so I don't think you are bricked. Good luck!

Pecata said:
I am not exactly an expert, but I would recommend to flash back the latest image from Google...go back to completely stock and then if you want root and install TWRP again. Good news is your bootloader is still unlocked, so I don't think you are bricked. Good luck!
Click to expand...
Click to collapse
Ok so should I use the Nexus root toolkit and start from scratch again? Yeah my bootloader is unlocked and I can see twrp so I must still be rooted ..just wiped my whole device that all thanks

Try re flashing the Vendor.img sounds like the vendor didn't get restored
Sent from my Pixel XL using Tapatalk

i would but everything (files etc.) are gone from my phone...so i would have to download and flash it thru my pc right? if not ill probably just flash a rom gapps the vendor of course and super su and see if it boots up to the rom

Yup just download the Factory Image and extract the vendor image and flash it with fastboot.
Or flash another ROM /Gapps/ Vendor
Sent from my Pixel XL using Tapatalk

Not clear. The files you had before restore are missing or you miss files from your backup? Twrp backup does not backup your /data/media.
White google logo hanging is a due to bad vendor files.

help me unbricked Huawei nexus 6p

hello friends,
i unlocked my bootloader and flashed a custom Rom. i was experiencing problems and i decided to revert to stock google rom, i mistakenly locked the bootloader with twrp recovery installed and i now get the message that my phone is corrupt and cannot be trusted. The phone doesn't boot it stucksat the Google logo. I the tried unlocking but not successful,
is there any help for me? thanks in advance

Dont wanna be the bad news guy but I think you broke your device.
You can't do anything in the bootloader now. Try to do stuff in TWRP. If TWRP still functions normally we can do something.

HeroPlane said:
Dont wanna be the bad news guy but I think you broke your device.
You can't do anything in the bootloader now. Try to do stuff in TWRP. If TWRP still functions normally we can do something.
Click to expand...
Click to collapse
twrp cannot read the internal memory

Frenzy23 said:
twrp cannot read the internal memory
Click to expand...
Click to collapse
Then sorry dude, I don't know but I am sure there is a way to fix it.
Wait for more comments

Hi.
Go to:
http://www.androidbrick.com/download/unbrick-nexus-6p-angler/
And follow that guide ?

If it boots up just boot it. I face this corruption screen every day on 5X, I also have locked bootloader with TWRP onboard and no issues so far (stop talking bull**** that this will brick device, btw).
You said it can't read internal memory. What exactly it display (I assume it can't decrypt it)
Try to sideload random ROM and install it, then toggle OEM unlock.
Sent from my Nexus 5X using XDA Labs

Banan PL said:
If it boots up just boot it. I face this corruption screen every day on 5X, I also have locked bootloader with TWRP onboard and no issues so far (stop talking bull**** that this will brick device, btw).
You said it can't read internal memory. What exactly it display (I assume it can't decrypt it)
Try to sideload random ROM and install it, then toggle OEM unlock.
Sent from my Nexus 5X using XDA Labs
Click to expand...
Click to collapse
thanks
that's right twrp cant decrypt the device and also the file manager on the twrp is not able to read the files on the device, it also says no OS installed
it boots to the bootloader alright, but it stucks up on the google logo

rhaavin said:
Hi.
Go to:
http://www.androidbrick.com/download/unbrick-nexus-6p-angler/
And follow that guide
Click to expand...
Click to collapse
thanks ill give it a try and get back to you

I see no other option than full wipe and reflashing stock. So your data will be gone
Format /data in TWRP,
Reboot recovery,
Put any stock system image you have (system vendor, boot, recovery) to internal storage. (I assume you have at least one factory image on PC if not download),
Flash them in recovery (flash recovery last just in case)
Device SHOULD boot up.
Sent from my Nexus 5X using XDA Labs

I also tried to change my stock rom to custom rom. I don't know what happened, only twrp3_1_1_4Cores.img works on my device. I can install a custom rom but it doesn't boot into it. I cannot find any further informations about it. Can someone help me?

New Unlocked Bootloader Screen - Cannot Boot into TWRP

Hi folks, I installed Beta 11 and lost my root (which was to be expected) but there is a new screen that comes up when I try to boot into TWRP. I posted about it here is this mondo-thread but it got lost in other conversations:
https://forum.xda-developers.com/showpost.php?p=76702639&postcount=2165
Anyway, anybody know how to get past this screen successfully?
I'm afraid to actually flash TWRP because the last time I did this it resulted in a bootloop and I had to wipe everything...
Thanks!
dq

When have flash twrp use the volume down until you read recovery mode then hit the power button and your phone boots into twrp :good:
Sent from my OnePlus 5 using XDA Labs

you can download this app to go back to old bootloader screen https://www.coolapk.com/apk/com.daxiaamu.op5mutoolsnew
open it and switch to "更多功能"——“恢复开机叹号为START”，then click "确定" to confirm.

Or if you're not familiar with Mandarin/whatever language that app is in, I have made TWRP flashable zips to revert to the old bootloader. You can get them from this post: https://forum.xda-developers.com/showpost.php?p=76659022&postcount=16

Phone is stuck on android one logo. TWRP Recovery installed can't wipe data. Help fix

So I was messing with my phone because I just got it rooted, I was excited; my last phone that was rooted was my Xperia C and that was years ago. I messed with Magisk modules and somehow came across a video on how to uninstall a module whereas I was just deleting them in the Magisk App. I tried the uninstall mod. I used TWRP Recovery but then the uninstall mod did not install. Now I am stuck with the android one logo. Please I need help .
Update! I was still trying to wipe the data. I don't know why it went through now it doesn't even go to the android one logo
Update no. 2! so i tried flashing it and it worked, I completely forgot about the MiFlashingTool, I was hesitant to actually flash with TRWP just because after I unlocked OEM on my device I can't seem to transfer files anymore in my phone (but probably it's because of the drivers). So I flashed it and rooted it again. I kinda am pretty knowledgeable about it too now. All's well that ends well.

Good to hear you were able to recover your phone. Always remember to do a full backup in TWRP before experimenting, in case something goes wrong

Tepig said:
Good to hear you were able to recover your phone. Always remember to do a full backup in TWRP before experimenting, in case something goes wrong
Click to expand...
Click to collapse
how to do a full back up in TWRP ? and what if i use the "Hot Boot" TWRP ?
#newbiehere

iSEKAI said:
how to do a full back up in TWRP ? and what if i use the "Hot Boot" TWRP ?
#newbiehere
Click to expand...
Click to collapse
Look at backup in twrp ? full means tick all the boxes. And hotboot means that you don't have a sticking twrp. However you still can backup on a MicroSD card.

henk_j said:
Look at backup in twrp ? full means tick all the boxes. And hotboot means that you don't have a sticking twrp. However you still can backup on a MicroSD card.
Click to expand...
Click to collapse
hmm.. so having twrp installed is really neccesary here .. ?
can i installed twrp recovery on my mi a1 running last pie OS ?
and if it can , will it make me unable to receive OTA update?
i know i can just flash the new update via twrp but the were kinda huge difference.. i mean OTA update were only around 250MB on the last patch feb 5th
but if we wanna flash it via twrp (i hotboot it back then) the file was above 1GB ?

NooDoAh said:
So I was messing with my phone because I just got it rooted, I was excited; my last phone that was rooted was my Xperia C and that was years ago. I messed with Magisk modules and somehow came across a video on how to uninstall a module whereas I was just deleting them in the Magisk App. I tried the uninstall mod. I used TWRP Recovery but then the uninstall mod did not install. Now I am stuck with the android one logo. Please I need help .
Update! I was still trying to wipe the data. I don't know why it went through now it doesn't even go to the android one logo
Update no. 2! so i tried flashing it and it worked, I completely forgot about the MiFlashingTool, I was hesitant to actually flash with TRWP just because after I unlocked OEM on my device I can't seem to transfer files anymore in my phone (but probably it's because of the drivers). So I flashed it and rooted it again. I kinda am pretty knowledgeable about it too now. All's well that ends well.
Click to expand...
Click to collapse
you can try installing twrp and flash magisk install via twrp.you can try installing twrp and flash magisk uninstall via twrp.