Xperia V soft bricked, please help!

mrainman

Member
Sep 22, 2016
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Hi guys. I am in desperate need of your help.

I have a Sony Xperia V LT25i which used to have a CyanogenMod Rom 12.1 up and running and TWRP 2.8.

I decided to update TWRP from the Bootloader, hoping I could update it to later on to CyanogenMod 13.0, and stupidly picked it to update on boot instead of recovery and now my phone is bricked. it does nothing but load the "Sony" logo, then dim.

I tried fastboot from the computer, it does not detect my phone. I tried Sony Mobile Flasher, it does not detect my phone, i.e. I managed to flash most of the files from a factory rom except system.sin.

I can't get into recovery(Volume up + power button). I am able to get into fastboot and bootloader mode over the phone (blue and green lights), however, my computer does not detect it at all (I tried all the drivers I found on the internet, but not success).

Any suggestions? Please?
 
Last edited:

St.Jimmy90

Senior Member
Jul 31, 2013
876
262
0
Frankfurt
Hi guys. I am in desperate need of your help.

I have a Sony Xperia V LT25i which used to have a CyanogenMod Rom 12.1 up and running and TWRP 2.8.

I decided to update TWRP from the Bootloader, hoping I could update it to later on to CyanogenMod 13.0, and stupidly picked it to update on boot instead of recovery and now my phone is bricked. it does nothing but load the "Sony" logo, then dim.

I tried fastboot from the computer, it does not detect my phone. I tried Sony Mobile Flasher, it does not detect my phone, i.e. I managed to flash most of the files from a factory rom except system.sin.

I can't get into recovery(Volume up + power button). I am able to get into fastboot and bootloader mode over the phone (blue and green lights), however, my computer does not detect it at all (I tried all the drivers I found on the internet, but not success).

Any suggestions? Please?
Which operating system are you running on your PC? Did you currently update it to windows 10, or a newer windows 10 version? If so you'll have to disable driver signature and install the drivers again.
 

mrainman

Member
Sep 22, 2016
6
1
0
Which operating system are you running on your PC? Did you currently update it to windows 10, or a newer windows 10 version? If so you'll have to disable driver signature and install the drivers again.

I am running windows 10 with its latest updates, and had had it for a while. I did disable driver signature and reinstalled the drivers but that did not fix it.

I am currently able to identify my device in fastboot as

PSDN: CB5A1WUDZ0&ZLP fastboot


I tried to flash a recovery.img to it, but it says it fails with

(bootloader) Flash of partition 'recovery' requested
FAILED (remote: "Partition not found" ).
finished. total time: 0.693s
any other advice, please?
 
Last edited:

St.Jimmy90

Senior Member
Jul 31, 2013
876
262
0
Frankfurt
I am running windows 10 with its latest updates, and had had it for a while. I did disable driver signature and reinstalled the drivers but that did not fix it.

I am currently able to identify my device in fastboot as

PSDN: CB5A1WUDZ0&ZLP fastboot


I tried to flash a recovery.img to it, but it says it fails with


any other advice, please?
What happens if you extract to boot.img from your current 12.1 and try to flash it as boot.img?
 

mrainman

Member
Sep 22, 2016
6
1
0
What happens if you extract to boot.img from your current 12.1 and try to flash it as boot.img?
you are reading my thoughts. I just did that, and I have a bit of progress (I guess). I am in cyanogenmod recovery mode. however, I do not know how to proceed from here. I have the cyanogenmod 13.0 archive on my sdcard, however when I try to install it it says
install failed.
install /storage/540D-CA26/cm-13.0-20160920-nightly-tsubasa.zip finding update package.....
verifying update package....
installing update....
user data unifier tool

sdcard partition still contains files.
please copy your data from internal sdcard. do not format the partition yourself.
if you are sure you want to remove sdcard, and accept the losses, flash this zip again.
the device needs to be converted to unified userdata partition.

please read the information above.

failed to install /sideload/package.zip
please take note of all the above lines for report.

installation aborted.
I tried flashing it again, it kicks the same error.
 
Last edited:

St.Jimmy90

Senior Member
Jul 31, 2013
876
262
0
Frankfurt
you are reading my thoughts. I just did that, and I have a bit of progress (I guess). I am in cyanogenmod recovery mode. however, I do not know how to proceed from here. I have the cyanogenmod 13.0 archive on my sdcard, however when I try to install it it says

I tried flashing it again, it kicks the same error.
Ok, your phone is recovered. I guess you're trying a CM13 nightly. It should work at the 2nd or 3rd time, though I'm not quite sure. Otherwise you could try to boot up to your Cm12.1 and install TWRP via a terminal emulator and the dd command. To me TWRP is way better than the CM recovery
 
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mrainman

Member
Sep 22, 2016
6
1
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Ok, your phone is recovered. I guess you're trying a CM13 nightly. It should work at the 2nd or 3rd time, though I'm not quite sure. Otherwise you could try to boot up to your Cm12.1 and install TWRP via a terminal emulator and the dd command. To me TWRP is way better than the CM recovery
It does not boot to my CM12.1. It simply freezes to "Sony" logo. however, if I hold volume up + power button it goes into recovery mode. should I keep on trying on installing 13.0? I tried about 4-5 times, still kicks the same error.
 

St.Jimmy90

Senior Member
Jul 31, 2013
876
262
0
Frankfurt
It does not boot to my CM12.1. It simply freezes to "Sony" logo. however, if I hold volume up + power button it goes into recovery mode. should I keep on trying on installing 13.0? I tried about 4-5 times, still kicks the same error.
You could also try Cm14, it runs pretty good on my Xperia T. Unifying will wipe your internal storage though, so be aware. If you still got data on it you should try to flash CM12.1 again and safe your data
 
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mrainman

Member
Sep 22, 2016
6
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You could also try Cm14, it runs pretty good on my Xperia T. Unifying will wipe your internal storage though, so be aware. If you still got data on it you should try to flash CM12.1 again and safe your data
I was able to boot a TWRP from an unofficial CyanogenMod 12.1. I think I got it from here. I do not own an Xpire T, so my latest version of Cyanogen would be 13 ? (I Guess)
Thank you so much for your help!