LEWA OS 6
ANDROID 4.2.2 ROM updated
See below link.
Hint: use chrome and translate page
Wipe data/factory reset/wipe system/data/cache
Flash Zip from SD card location
Use CWM recovery
Edit: tried LEWAOS5-
Works perfectly- However, my friend deleted super camera and there for after dirty flashing same rom again, i found cannot switch between 2G and 3G.. so...
Flashed XPERIA Z2- (my recommendation)
Works Amazing- This is the best rom i have come across. Has in built dolby digital technology. Fast- GPS/2G/3G/Dual sim- Everything works so amazing i thought the rom was made for Doogee DG500!!! + stamina mode etc etc.
This is not my work and i take no credit for it. Just helping a friend who is fedup of current interface. if you download, try to thank the developer for the hard work he has done for the device.