MIUI ROM for Jiayu G4
Highlights:
(+)
* JB 4.2.1 based
* Full dual sim support
* Fast, smooth, stable.
* Multilingual [Chinese/English/German/Spanish/Italian/Polish/Portugal-BR/Turkish/Czech/Slovak/Hungarian/French/Russian and more]
(Ultimate Edition)
* PHONE SHUTDOWN AFTER CALL END FIXED
* Extended power menu.
* 3G active sim card switch
* Some layouts fixes.
* Deleted all chinese stuff
* MIUI camera WORKING inc front camera videorecording!
* 2G/3G toggle fixed
* EngineerMode built-in
* Several major fixes of original release (911 city code problem, sim/pin auth problem, volume wakelock setting, smilies etc)
* Key lights never switching on when touching the screen.
* MX/Youtube/GMail settings error fixed
* Latest 08/13 GAPPS built-in
* Xperia Swipe keyboard with different skins or stock AOSP keys
* AGPS & EPO fixed
* MIUI Camera codecs improvement
* Downloads limit for mobile networks can be adjusted up to 1gb
* VIPER4ANDROID built-in
* Some bonus things 
* Something i forget
No OTA atm.