I have had nothing but issues with this phone upgrading. Every time it bricks, the first time I got it working by reformatting DATA partition. The other times basically gave up and 2-3 days later I come back and it magically starts working again. The day that 5.0.1 came out I downloaded the FUU, well everything looked good the it gets stuck at the Android is upgrading starting apps. Since then I have redownloaded all 5.0.1 files I could find on XDA, and the same results. I tried different roms, using TWRP to wipe and rewipe and format and do it again and again. I have tried to downgrade to 4.4.2 and 4.4.4 but i get the process system isn't responding when it boots up. I am unsure what to do now, anything will help.
xda-developers