[HELP] Soft brick ZL C6506.

Hi All,
If you have some experiences with some situation like this, pls give some advices.
I have my Zl, upgraded to 5.1.1 (10.7.A.0.222) , it work fine for some week, then usually shutdown suddenly, 5.1.1 upgraded from 5.0.2 with rooted, installed xposed and some modules (but not unlocked bootloader) .
After some random hanging and rebooting, i try to flash brand-new from ftf file .
and BTW, i unlocked bootloader, after flash new ftf, system cannot boot up, only show up the Sony logo, then down, after that fastboot and flash older ftf ones normally , event i try to relock bootloader.
while unlocked bootloader, i try to install CM ROM, flash boot.img one but still not up.
While connect the charger, logo sony blink for every 10s (estimation) .

I consider the TA partition affected to booting processs. (i have backuped TA but still don't know how to restore via fastboot/flashtool)

Thank and appricated for reading till this point.
Hope you can give me and someone who encounter this situation some wise advices :D, i will report each try