Hi there,
Today I received my Xperia Tablet Z and sure enough, the first thing I did was flash a custom Rom
But my device wouldn't boot up anymore...
Basically I unlocked the bootloader via Sony's key, flashed a boot.img via fastboot and then flashed the Rom via the recovery.
All I got was a bootloop - regardless of which custom Rom I used (AOKP, Cyanogen stable, Cyanogen nightly, Cyanogen unofficial, ...)
I tried doing a factory reset but to no avail.
I manually checked for each delete / wipe option in the recovery, but the device simply would not boot further than the boot animation.
However, after some time I stumbled across a Rom that contained the TWRP recovery instead of CWM.
And this one asked me for a password when I booted.
"A password? What for?!"
Well, simply cancelling the request works.
But it seems that my whole problem had to do with that password request
As it turns out, the data partition was encrypted would not let me access it.
For some reason unknown to me, it was not wiped in CWM (some error popped up when trying to format /data).
TWRP allows for doing a format on this one ("full wipe" if my memory does not fool me) and voila - the tablet would boot!
So to sum it up:
After unlocking the tablet, there might still be an encrypted /data that can't be accessed by any custom Rom.
Wiping this /data solves the problem - and can be done via TWRP.
I just banged my head on that issue for 5 straight hours - downloading new custom roms, looking for similar bootloops, ...
Maybe this information will help someone
FrozenLord said:
Hi there,
Today I received my Xperia Tablet Z and sure enough, the first thing I did was flash a custom Rom
But my device wouldn't boot up anymore...
Basically I unlocked the bootloader via Sony's key, flashed a boot.img via fastboot and then flashed the Rom via the recovery.
All I got was a bootloop - regardless of which custom Rom I used (AOKP, Cyanogen stable, Cyanogen nightly, Cyanogen unofficial, ...)
I tried doing a factory reset but to no avail.
I manually checked for each delete / wipe option in the recovery, but the device simply would not boot further than the boot animation.
However, after some time I stumbled across a Rom that contained the TWRP recovery instead of CWM.
And this one asked me for a password when I booted.
"A password? What for?!"
Well, simply cancelling the request works.
But it seems that my whole problem had to do with that password request
As it turns out, the data partition was encrypted would not let me access it.
For some reason unknown to me, it was not wiped in CWM (some error popped up when trying to format /data).
TWRP allows for doing a format on this one ("full wipe" if my memory does not fool me) and voila - the tablet would boot!
So to sum it up:
After unlocking the tablet, there might still be an encrypted /data that can't be accessed by any custom Rom.
Wiping this /data solves the problem - and can be done via TWRP.
I just banged my head on that issue for 5 straight hours - downloading new custom roms, looking for similar bootloops, ...
Maybe this information will help someone
Click to expand...
Click to collapse
I usually just hit the thanks tab but feel I have to than you personally for this post. After hours of messing about I found this post, flashed the TWRP recovery, wiped data and was able to flash and boot my xperia..
Thank you for sharing this info..
For others searching you can get the twrp recovery in this rom http://forum.xda-developers.com/showthread.php?t=2383800
Related
My first post so be gentle ...
I recently let a colleague at work use my phone as a guinea pig for Exchange active sync which in turn enabled encryption on my device. In my haste to regain control of my phone and not be bound by the active sync policies he had imposed, I went straight to ClockworkMod and formatted all partitions on the device.
I then ADB Pushed an AOSP Rom to my phone and installed via ClockworkMod and have been using it encryption free for many months now and thought I had seen the last on the encryption .... Until yesterday when I fancied a change and wanted to try a Samsung based rom.
It seems that any Samsung based roms wont boot due to them needing a pin to which I have no idea of what it could be. Having formatted what I thought was pretty much all partitions of the phone and still finding signs of encryption leads me to think I'm missing something ... Bootloader maybe? ...
So I think my questions are ... Has anyone seen this before and how did they fix it. & Any one know where I could acquire an official bootloader and flashing instructions?
Thanks
Graham
Fixed .....
Ok... So after a lot of flashing ... obviously not in public parks! The problem is solved and below is my fix
1. Flashed the full rom from the below link. I chose the ODIN Copy
http://forum.xda-developers.com/showthread.php?t=2077844
2. After the full flash I still had the problem that even official stock ROM was prompting for the encryption pin. So I rebooted into the official Android recovery and did a factory reset and wiped cache. After doing the factory reset using the official recovery, the PIN Appeared to be removed
3. Then I downloaded the Odin version of Clockworkmod from the link below and flashed via ODIN
http://forum.xda-developers.com/showthread.php?t=1719744
4. ADB Pushed the Samsung custom Rom through Clockworkmod and flashed.
Problem Solved
Encryption is a nightmare!
Thanks for posting back your findings. I wish everyone did this.
I think the stock recovery does a full format of /data including /data/media (internal sdcard), whereas CWM etc actually use a recursive delete of files (linux command rm -rf) which leaves /data/media in tact (so a factory reset doesn't wipe out all your pictures and backups etc)
Possibly the cause .... I think either way the official recovery deleted something that CWM didn't.
This forum has helped me out loads so it's nice to be able to contribute back.
I was using my phone and all had been working fine for ages. It was in my pocket for a while and when i took it out to use it I saw that it was on the boot animation of CM11. My phone was already on when I last used it so I had assumed it had crashed. I took the battery out and turned the phone on again but it got stuck on the CM boot animation. The last time I turned on my phone before that was when I flashed a supersu zip file to make my root work as I was having some problems. After flashing the supersu zip and told my CWM recovery to restart the system, it prompted me to "fix root" or something like that, and I clicked yes and it booted normally. That was the last time it booted normally before being stuck as it is now. First thing I did after it got stuck was go into recovery and reflash my current rom ( a CM11 snapshot) I then got faced with a status 7 error and so couldnt flash the rom. So then I flashed multiple other CM11 roms, none of which worked, so I flashed a CM10.2 stable rom which worked. I then got faced with the fix root before reboot thing and so I clicked yes. Still had the stuck booting thingy. I tried many things, flashing kernals roms gapps etc and nothing made a difference. I wiped cache, dalvik cache and no difference. I even wiped the system and tried to flash roms but only the 10.2 one would work, still got a status 7 with the CM11 ones. When I wiped my data however and flashed CM 10.2, it booted. I still couldn't flash the CM11 roms though even after a factory reset. So I have the reason to believe something in the data is wrong, not cache system or anything like that. What could it be? I don't want to have to lose all my data in order to be able to use my phone again, even then, something is still wrong as my phone won't flash CM11 roms anymore. So my questions are;
What things could have caused this?
Can this be a problem from flashing the supersu zip (a root issue)
Is it possible to somehow view or copy the internal data on a computer (since I cant get into the operating system), and this would allow me to get all my pictures contacts music etc anything so I can use my phone by wiping data?
Thanks, sorry this is quite long and probably hard to understand whats going on, but help is appriciated thanks
Don't fix root if you wish to use SuperSU instead builded-in cm superuser. Also try to flash via Odin latest recovery. TWRP should be fine. You can mount partitions from recovery level to download data to your computer. Of course if it still exists. If not, if they are corrupted you need to flash stock ROM and repeat whole cm11 adventure again. If Odin successfully flash the stock then it's a chance your partition layout and user data are untouched.
____________________________________________
P3110 / I9300 / I9100 / NEXUS 5 / iPAD2
Hi,
First I apologise for not having made a back up of my filesystem, I had grown overconfident from previous successful projects ;-/
I have unlocked the phone and installed TWRP recovery. I then used SUPERSU to root the phone under TWRP. After SUPERSU the phone did not boot, it stayed on the WARNING BOOTLOADER UNLOCKED splash for over an hour and did not boot after a reset.
I read through the forums and looked for a kernel to try as I had read that the OS may be damaged, and I wanted to flash a ROM in any case. I read to clean the boot partition before flashing so I did this. The kernel I tried was Squid. This made the phone display "fall through from normal boot mode". So I tried Cyanogen Mod 14, which put the phone on a very rapid bootloop cycle (about every 15 secs), then tried Squid Kernel R22B which put the phone on a long (about 8 minute) bootloop cycle.
Not sure what else I can do. I don't want to give up on the phone as it still mostly works (it has a bootloader, recovery and a file system). I have tried to find a stock ROM to install but proving difficult to track down - links seem to be down)
I apologise if I have got any technical terms wrong. I hope you can help!
Thanks,
Caroline
Caroline300 said:
Hi,
First I apologise for not having made a back up of my filesystem, I had grown overconfident from previous successful projects ;-/
I have unlocked the phone and installed TWRP recovery. I then used SUPERSU to root the phone under TWRP. After SUPERSU the phone did not boot, it stayed on the WARNING BOOTLOADER UNLOCKED splash for over an hour and did not boot after a reset.
I read through the forums and looked for a kernel to try as I had read that the OS may be damaged, and I wanted to flash a ROM in any case. I read to clean the boot partition before flashing so I did this. The kernel I tried was Squid. This made the phone display "fall through from normal boot mode". So I tried Cyanogen Mod 14, which put the phone on a very rapid bootloop cycle (about every 15 secs), then tried Squid Kernel R22B which put the phone on a long (about 8 minute) bootloop cycle.
Not sure what else I can do. I don't want to give up on the phone as it still mostly works (it has a bootloader, recovery and a file system). I have tried to find a stock ROM to install but proving difficult to track down - links seem to be down)
I apologise if I have got any technical terms wrong. I hope you can help!
Thanks,
Caroline
Click to expand...
Click to collapse
Assuming you've the Lineage 14 zip in your internal storage or micro sd,. Enter TWRP, select wipe, advanced wipe, check system data cache and dalvik, swipe to wipe. Now you've clean wiped your phone.
Then go "install", select the Lineage zip and flash it.
Hi DroidFreak32, thank you for your help. The phone is now booting for the first time since it's "adventure".
Hi,
Unfortunately the phone is still in the boot logo screen. It stayed on the Lineage logo for 2 hours. I have powered off and rebooted once more, and it is still in the boot logo screen now (1 hour later). I'll wipe and install again and post an update.
Hi,
I reflashed Lineage, same problem. I did notice that each time I installed a zip file, SUPERSU asked me to install it prior to reboot to root the phone and I have always hit Yes. On the final flash, I powered off the phone when it prompted me to install SUPERSU, and the phone booted normally. Very nice design on the mod, I like the way the apps are displayed alphabetically. Good work Lineage Team!
Hey all, so it appears that I screwed my phone, I am not sure how.
I was running LineageOS, and wanted to update to Android 10 one, so I followed the steps, and I think I screwed the sideloading part, so... long story short now when rebooting from OrangeFox RecoveryProject it says no OS detected, and when it boots it says encryption unsuccessful, I tried wiping and installing DisableForceEncryption_Treble_v17.2 and restarting, and the same thing happens.
I tried to flash through recovery both, and did not work:
https://xiaomifirmwareupdater.com/firmware/beryllium/
https://xiaomifirmwareupdater.com/archive/vendor/beryllium/
And when trying to flash through miFlash it doesn't work:
I go to fastboot in poco, hit refresh in miflash, it shows a device in the list, but the phone goes dark with 'something key to shutdown` written in the top left corner and if I hit the flash button nothing happens.
Can anyone assist with that please?
kishikaisei said:
Hey all, so it appears that I screwed my phone, I am not sure how.
I was running LineageOS, and wanted to update to Android 10 one, so I followed the steps, and I think I screwed the sideloading part, so... long story short now when rebooting from OrangeFox RecoveryProject it says no OS detected, and when it boots it says encryption unsuccessful, I tried wiping and installing DisableForceEncryption_Treble_v17.2 and restarting, and the same thing happens.
I tried to flash through recovery both, and did not work:
https://xiaomifirmwareupdater.com/firmware/beryllium/
https://xiaomifirmwareupdater.com/archive/vendor/beryllium/
And when trying to flash through miFlash it doesn't work:
I go to fastboot in poco, hit refresh in miflash, it shows a device in the list, but the phone goes dark with 'something key to shutdown` written in the top left corner and if I hit the flash button nothing happens.
Can anyone assist with that please?
Click to expand...
Click to collapse
This happened to me when I accidentally deleted the OS when flashing the latest MIUI 11 build (using TWRP). THIS IS HOW I FIXED IT.
Find a full firmware of whatever you wanted to flash, either Lineage or MIUI 11. Then flash via your recovery (you said you have orangefox). Use an external sd card, external USB or HDD since you technically wouldn't have access to your internal data. After flashing, same process as most updates, clear cache and dalkiv. Then flash a newer DFE (if you still want to decrypt, there is a page here in xda with it. Or go to miui forums Happybuddhist, the mod there, made a new one prebuilt with Magisk). Then reboot into recovery to make sure you keep your custom recovery. Once booted to recov. Boot to system. Should fix the issue.
You could check my guide here on how to unbrick your pocophone:
https://forum.xda-developers.com/poco-f1/how-to/unbrick-flashing-stable-rom-pocophone-t3901152
mecoromeo said:
This happened to me when I accidentally deleted the OS when flashing the latest MIUI 11 build (using TWRP). THIS IS HOW I FIXED IT.
Find a full firmware of whatever you wanted to flash, either Lineage or MIUI 11. Then flash via your recovery (you said you have orangefox). Use an external sd card, external USB or HDD since you technically wouldn't have access to your internal data. After flashing, same process as most updates, clear cache and dalkiv. Then flash a newer DFE (if you still want to decrypt, there is a page here in xda with it. Or go to miui forums Happybuddhist, the mod there, made a new one prebuilt with Magisk). Then reboot into recovery to make sure you keep your custom recovery. Once booted to recov. Boot to system. Should fix the issue.
Click to expand...
Click to collapse
I tried that, now I am a step forward I think, I flashed the stock firmware I found, and installed the latest stock ROM, rebooted (doesn't say no os anymore), but the only thing I see is a DELETE ALL DATA button and at the bottom 'Encryption was interrupted and can't be completed. As a result, the data on your phone is no longer accessible.
To resume using your phone, you need to perform a factory reset. When you set up your phone after the reset, you'll have an opportunity to restore any data that was backed up to your Google account.'
Darklouis said:
You could check my guide here on how to unbrick your pocophone:
https://forum.xda-developers.com/poco-f1/how-to/unbrick-flashing-stable-rom-pocophone-t3901152
Click to expand...
Click to collapse
I have an issue with the MiFlash part, it seems that it doesn't work as I mentioned...
Aight all, formatting data partition to ext4 worked, now it is booting
kishikaisei said:
Aight all, formatting data partition to ext4 worked, now it is booting
Click to expand...
Click to collapse
Works now?
mecoromeo said:
Works now?
Click to expand...
Click to collapse
So I had an OS-less phone that don't get recognised in MiFlash, and I had orangeFox recovery.
The steps to fix were:
- Flash a full stock Firmware
- Flash the stock ROM
- Flash DFE
- Format data to ext4
- Reboot and it works
So thanks all for your help
Hello
I was at RUI C07 stock firmware.
I've managed to unlock the bootloader and to install TWRP 3.4.0. Then I've tried to flash derpfest (android 10), LineageOS and RevengeOS.
All of them seems to have flashed successfully, but TWRP always warns that there is no OS installed when I try to reboot. When I do reboot, it tries to load something, fails and goes back to TWRP.
What is the problem? Should I try to flash vbmeta? Where can I find it? I'm completely lost.
Thanks in advance
I've just followed the "unbrick guide" and there was little developement...Now the phone boots to fastboot/bootloader by default. I can boot to recovery if I request it. But if I just turn on the system or if I request system, it stops at the bootloader.
What a roller coaster ride!
What seems to have worked for me was to flash yet another ROM (crDroid). But this time I made sure that I've formatted DATA, and then I've wiped vendor, system, caches, internal disk.
I may have forgotten to format the data partition before, which might have been the cause for so much trouble.
If you are reading this, don't forget to format the data partition before flashing a custom ROM, at east when coming from the stock rom.