[Xperia SP Q&A, Help & Troubleshooting] aegidius_7:
Hi,

I need help for backup TA and install TWRP recovery.

I have a Xperia SP Jelly 4.3 firmware 205 rooted, locked bootloader (unlock allowed), and want to use flashtool to save TA partiton and install TWRP (no recovery installed yet).

I have installed all drivers, Pc companion off, antivirus off, Sony USB cable, windows 10 x64.

Impossible to save TA with Backup-TA (I read the entire thread in developpement section and download/tried all the solutions there. As I am not allowed to post there, I post here). Here is the error :

=======================================
FIND TA PARTITION
=======================================
[COLOR="Lime"] Partition found![/COLOR]
=======================================
BACKUP TA PARTITION
=======================================
[COLOR="Red"]dd: can't open '/sdcard/backupTA.img': No such file or directory[/COLOR]
=======================================
INTEGRITY CHECK
=======================================
FAILED - Backup does not match TA Partition. Please try again.

*** Backup unsuccessful. ***

Even in flashtool, can't save TA nor install TWRP

27/059/2016 21:59:30 - INFO - <- This level is successfully initialized
27/059/2016 21:59:31 - INFO - Flashtool Version 0.9.22.3 built on 08-06-2016 22:30:00
27/059/2016 21:59:31 - INFO - Executing search strategies to find proxy selector
27/059/2016 21:59:31 - INFO - No proxy found for IE. Trying next one
27/059/2016 21:59:31 - INFO - No proxy found for firefox. Trying next one
27/059/2016 21:59:31 - INFO - No proxy found for java. Trying next one
27/059/2016 21:59:31 - INFO - Syncing devices from github
27/059/2016 21:59:32 - INFO - Opening devices repository.
27/059/2016 21:59:32 - INFO - Scanning devices folder for changes.
27/059/2016 21:59:39 - INFO - Pulling changes from github.
27/059/2016 21:59:40 - INFO - Quietly closing devices repository.
27/059/2016 21:59:40 - INFO - Devices sync finished.
27/059/2016 21:59:40 - INFO - Loading devices database
27/059/2016 21:59:40 - INFO - Loaded 91 devices
27/059/2016 21:59:40 - INFO - Starting phone detection
27/059/2016 21:59:46 - INFO - [COLOR="Lime"]Device connected with USB debugging on[/COLOR]
27/059/2016 21:59:46 - INFO - [COLOR="Cyan"]Connected device : Sony Xperia SP[/COLOR]
27/059/2016 21:59:46 - INFO - [COLOR="Cyan"]Installed version of busybox : BusyBox v1.22.1-Stericson (2014-01-25 17:27:18 CET) multi-call binary[/COLOR].
27/059/2016 21:59:46 - INFO - [COLOR="Cyan"]Android version : 4.3 / kernel version : 3.4.0-perf-g4c8352f-00775-g89dacae / Build number : 12.1.A.1.205[/COLOR]
27/059/2016 21:59:46 - INFO - Checking root access
27/059/2016 21:59:46 - INFO - [COLOR="Lime"]Root Access Allowed[/COLOR]
27/059/2016 21:59:52 - INFO - Begin backup of /dev/block/platform/msm_sdcc.1/by-name/TA
27/059/2016 21:59:52 - ERROR - [COLOR="Red"]Erreur when doing raw backup[/COLOR]
27/000/2016 22:00:36 - INFO - Now plug your device in Fastboot Mode
27/000/2016 22:00:40 - INFO - Device disconnected
27/001/2016 22:01:21 - INFO - [COLOR="Lime"]Device connected in fastboot mode[/COLOR]
27/001/2016 22:01:33 - INFO - [COLOR="Lime"]Selected kernel (boot.img or kernel.sin): C:\Users\Someone\Downloads\twrp-3.0.2-r12-boot-huashan.img[/COLOR]
27/001/2016 22:01:33 - INFO - Flashing selected kernel
27/001/2016 22:01:33 - INFO - sending 'boot' (12253 KB)...
27/001/2016 22:01:33 - INFO - [COLOR="Red"]FAILED (remote: The Device must be rooted first)[/COLOR]
27/001/2016 22:01:33 - INFO - finished. total time: 0.007s
27/001/2016 22:01:33 - INFO - FASTBOOT Output:
sending 'boot' (12253 KB)...
FAILED (remote: The Device must be rooted first)
finished. total time: 0.007s
27/001/2016 22:01:33 - INFO - Please check the log before rebooting into system

I don't understand what is missing, can't find any solution that worked...

Thanks for any clue.