I made this ftf from my XE (Single Sim C1505) - 11.3.A.2.23
How to ...
For easy method, just download iRoot and root your HTC Desire 620G. After that, using Root Explorer to delete the superuser.apk in system/app (because it's using Chinese language), then open Playstore and install SuperSU of Chainfire. Reboot your ...
Step 8: in CWM Recovery, just go to Advance and choose Power Off option --> Fix Root. No need to reboot system.
thank you for the quick reply sir, and will do,
finally got it to 100% and just gonna see how it goes,
(( 1% lost 70% usage Android system )) within ... like 6-9 mins...
I'm just saying I think it's weird as I had 2 days battery life with your...
11.3.A.2.23 FTF and how to root this firmware --> http://forum.xda-developers.com/showthread.php?t=2435957