from what my experience it. There are 2 type of base rom 1 is Russian another is China. So lets say if your base Rom is China you can only flash to other Custom China Rom and if your base Rom is Russia than you can only flash to other Custom Russia Rom. Reason why should be because of the different partition no.

Anyone know how can I flash english recovery in a China Base Rom. When I use unclemobile it is in Chinese which I cant read at all.

Yea imma pure bananaman the chinese words are all symbols to me

Even they give you 12 core also useless. Not much game really running on 4 cores also. Most important is ram and gpu but don't expect too much on p780 it can run most game fine but not perfectly. Bare in mind its just a mid range phone.

no fap fap bird and candy crush!!! Been playing Wechat Gunz Dash. Kinda fun when you have friends to compete but if less friend its damn bored

Yes you need wechat to enjoy those game.

or

Install Line. There are some fun games on Lines too.

GPS on p780 so far no problem for me. Lockup to satellite in only 10 sec. using Waze without problem at all.