Hey, you cannot go back to the original firmware even if you had it as the recovery will give you a "Firmware too old" error. It is also not recommended to flash such an old firmware as it poses serious security risks for your phone. Please download and flash the latest firmware for your phone from here http://flymeos.com/firmwarelist?modelId=3&type=1

root the phone and install following apps
1.supersu
2.busybox
3.flyme localization free

go to busy box and select smart install

then go to flymelocalization app.....agree all the pop up msgs

then select second option in  which the last letter is "I" .

then the phone automatically reebots.

u can install Global version

No help?????