If you ever buy the Huawei Ascend G510-0100 from China ( Dual SIM version ),
you need to do the following :
-Install TWRP to unlock the phone and the bootloader
-Boot into TWRP recovery and install
+LEWA 4.1.2 ROM
LeWa_HUAWEI_G510-0010_JB_ROM_14.06.20_000b94c9302c2c3518a735dbe6a99c01
+Google Apps [ Google Play store & Google Search ]
gapps-jb-20121011-signed
+LEWA ROM call fix
lewacallfix
+Fix for Calls not hanging up
Baseband-eur
+CWM SU zip to Root the phone and install SuperSU
-Change language to English
-Change keyboard to default Google keyboard
-Install Root App delete and delete any apk's you think are bloatware
-There is no app drawer, so just use multi-screens to organize your app icons