[Xperia Z General] toscapaul:
xperia ZL stuck in bootloop

ZL C6502

backed up TA partitions before doing anything following http://xdaforums.com/showthread.php?t=2292598

unlocked bootloader with this http://xdaforums.com/showthread.php?t=2153261

i can not figure so far if the phone has a hardware issue or is a software issue of something i did wrong or screwed up in the process of installing multiple roms/apps backups etc

had cm 10.1.3 running just fine for two months or so and after a couple more apps installed , settings changed and backups made via recovery it seems i am stuck in Bootstall

things i have tried with a couple of custom roms for odin/ZL (cm 10.2 ,11, omni, pac)

-flashing boot.img with cwm or twrp(extracted from each custom rom package) via fastboot command (device in fastboot mode/blue led):

fastboot flash boot xx.img then fastboot reboot

-inside cwm/twrp i will do a full wipe , format /data and /sdcard , wipe dalvik cache

-install the zip from external card

-from recovery do another factory reset

-reboot

from my understanding after these steps i should be able to boot into os (at least this worked in the past)

now am stuck in a loop with sony screen( or whatever image was used for each specific kernel ) :image displaying then rebooting in a loop

managed to boot yesterday to omni, and able to reboot a couple more times, then reinstalled cm 10.2, tried a couple more reboots, and then restored my backed up cm 10.2 full backup, managed to reboot the phone without issues for a couple of times then altered some settings in prefs of some apps ( email/viber/custom ringtones etc ) and did another full backup in cwm ... after restart am stuck at bootstall again and am back at square one ... following the same steps i did yesterday no longer boots the phone

i have tried flashing some stock roms via flashtool , kernel only or full ftf , flashing seems to be done properly, no error in flashtool but once i reboot the phone it will shake once and the screen will remain dark

Flashtool says

Current device : Unknown: Aug 28 2013/08:20:43 - EP731822BC - Unknown: Aug 28 2013/08:20:43 - Unknown: Aug 28 2013/08:20:43 - Unknown: Aug 28 2013/08:20:43

Loader : S1_Root_5ca3 - Version : APQ8064_30 / Boot version : S1_Boot_Lagan_1.1.1_1 / Bootloader status : ROOTED

i can connect to PC-usb in fastboot or flash mode and Flashtool 0.9.13.0 will say

INFO - Device connected in fastboot/flash mode

but will not acknowledge the model make or anything else

i have installed the drivers from c:\Flashtool\drivers\ ... the ZL driver is not displayed there but checked the Xperia Z, Flashmode and Fastboot drivers like i saw in some thread here in the ZL forum

device manager shows

with the phone in fastboot/flash mode if i do a Devices->Check Drivers in Flashtool i get

25/032/2014 19:32:38 - INFO - List of connected devices (Device Id) :

25/032/2014 19:32:38 - INFO - - USB\VID_0FCE&PID_0DDE\EP731822BC	Driver installed : true

25/032/2014 19:32:38 - INFO - List of ADB devices :

25/032/2014 19:32:38 - INFO - - none

25/032/2014 19:32:38 - INFO - List of fastboot devices :

25/032/2014 19:32:38 - INFO - - none

if i install a recovery and connect the phone to PC while in recovery flashtool will say

25/054/2014 19:54:36 - ERROR - Drivers need to be installed for connected device.

and in dev manager the phone appears as C6503 with an exclamation mark ( as drivers not installed)

Does the phone need to be seen properly as Xperia ZL C6502 even in fastboot/flash mode in Flash Tool or dev manager?

SUS or Pc Companion do not recognize the phone SUS says "The phone contains modified software that cannot be update" even when i have flashed some stock rom

I am not an android guru, so pardon me if this sound stupid , but is there a way to check if the bootloader is working (im)properly? or might it be the case something else was altered along the way? something that can not be reset by the usual wipe / format / install of a custom rom?

...my first step was to back-up TA partition but to restore that i reckon i need the phone to get recognized by adb , most likely running the os (stock firmware) with usb debugging enabled?

I appologize for the long post , but thought to give as much info i considered useful ... i have been bashing my head for 3 days in a row now .. readin alot of stuff but seems to no avail

... might take into consideration the phone might have some hardware issues as well

Any help will pe appreciated.

Thanks,

Paul

LE: tried locking the bootloader with flashtool but SUS says i am up to date regardless of what fw version i have flashed initially ... tried these

Xperia ZL (C6502)_Generic IN (India) 1270-7911_R4B_10.3.1.A.2.67 .... i remember my phone came initially with A.2.67

C6502_10.4.B.0.569_INDIA 1270-7911 R2C

Original Flash Tool for Xperia does not recognize my phone ..Unknown: Aug 28 2013/08:

So either i still do not have the proper drivers installed or something else changed inside the phone .... funny thing is that a week ago or so i could do a adb logcat from the same PC and things were just fine with cm10.2