This may or may not be related to the ta folder/drm keys, im not a developer, i honestly have no idea.
Anyway, i'll try and keep it as brief as possble. I've had my z2 for about a month, i unlocked the bootloader and rooted a couple of nights ago, didn't do it sooner as didnt want to lose drm keys. All the time i had locked bootloader i was searching for a way to try and get the ta/drm onto my laptop from my phone, with no luck lol.
While doing this i came to the (probably wrong) conclusion the the ta/drm file we need to back up is called 'mmcblk0p1, and can be found on root of phone in, dev- block- platform- msm_sdcc.1- by name.... scroll down, its the one called TA, 3 things made me believe this was it
1... Thats where the guide for backing up ta on z1 leads you
2... Its where all the ta backup apps go
3.... Its called TA
I finally gave up and unlocked my bootloader and rooted as after almost a month i was more aware of what got affected, i should point out now that everytime i tried to get this file, when i clicked platforms there were 2 folders to choose from, msm_sdcc.1 and msm_sdcc.2, i had a look in the second folder and it appeared to have the same contents as the first one but there wasnt a 'by name' folder.
After unlocking the bootloader, i tried to get to it again....when i clicked platforms there was only msm_sdcc.1, i opened it, looked the same, went by name, scrolled down n there was the TA mmcblc0p1. I tried this because id read a few things saying that TA/DRM didnt get wiped on z1 after unlocking bl on android 4.4..... so i figured as the msm_sdcc.2 had vanished then that must be what we needed to back up.... makes sense right?
So anyway, went n did my other checks regarding bootloader unlocking and stuff functioning, then flashed recovery and rooted, now i dont know if it was the recovery, root or factory reset but something has made msm_sdcc.2 reappear on my phone and as if that aint strange enough, its 50/50 as to wether i can open the folder or phone freezes, and if i can open it and try to do anything with mmcblk0p1 my phone just dies.... well passes out, screen freezes and becomes unresponsive then goes blank, after a while it will reboot and everythings lagging, i have discovered the cause to be that upon trying to do anything with msm_sdcc.2 or mmcblk0p1 located inside, root explorer devours all my damn memory, i have approx 10 gig free beforehand and after its froze and rebooted i have 0 free memory and upon checking apps rootexplorer has 10gig of data
What the hell is this folder and why does it crash my phone??? Anyone have any thoughts on this??
Sorry for long post n poor grammer/punctuation