After helping from croos devlopping/*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/
http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672
i found a way but it was not esy at all now after soo much try
i found steps
Needs
1 .download prf creater
http://forum.xda-developers.com/cro...create-pre-t2859904/post60604249#post60604249
2 .make pre rooted zp file of 19.4.A.0.182 with recovery by prf creater
3.download xperia firm http://forum.xda-developers.com/cro...xperifirm-xperia-firmware-downloader-t2834142
and download 19.3.A.0.470 firmware from xperia firm and make ftf file bundle it by flashtool learn from google
4. download xperia flashtool http://forum.xda-developers.com/xperia-z/orig-development/tool-z-flashtool-version-0-9-11-a
5.download kernal with recovary included from here for 19.3.A.0.470
http://forum.xda-developers.com/showthread.php?t=2764408
step 1 download 19.3.A.0.470 ftf
step 2 lock your bootloader by flashtool if unlocked
then flash 19.3.A.0.470 firmware
step 3-start your phone then switch off and then unlock your bootloader by flashtool .yes again !
step 4 - then reflash 19.3.A.0.470 but don't start your phone
step 5- download kernel suitable for 470 included dual recovery and install it by fastboot from this link
http://forum.xda-developers.com/showthread.php?t=2764408
step 6-then boot your phone into recovery and advance wipe - catch,dalvik ,data,system, internal memory
step 7- then install 19.4.A.0.182 flashable.zip then wipe delvik
step 8-then install drn function restore.zip for lolipop only from the link. https://www.mediafire.com/?hb4zjkrwzo7kabm
step 9 ready reboot into system .your phone is restore drm function .
step 10 enjoy step are overs
this not my work i found that this in post but it was not like easy so i have describe it properly as for you it will easy to restore
click thanks button if it works



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