[Cliffe Obed]

hi I upgraded my tecno c8 by flashing the
Tecno C8 (C8-H352-A2-M-HiOS 20160425) which I downloaded from
https://www.hovatek.com/forum/thread-19278.html it worked well until the phone goes to sleep mode it never wakes up again I have to reboot it.why is this happening?
previous build was Tecno C8 (C8-H352-A2-L-20160307)

[xerxes]

hi I upgraded my tecno c8 by flashing the
Tecno C8 (C8-H352-A2-M-HiOS 20160425) which I downloaded from
https://www.hovatek.com/forum/thread-19278.html it worked well until the phone goes to sleep mode it never wakes up again I have to reboot it.why is this happening?
previous build was Tecno C8 (C8-H352-A2-L-20160307)

Its a bug from the Marshmallow firmware, alot of peoples complained about it. 
You either return to Lollipop or use a custom ROM.

[hovatek]

hi I upgraded my tecno c8 by flashing the
Tecno C8 (C8-H352-A2-M-HiOS 20160425) which I downloaded from
https://www.hovatek.com/forum/thread-19278.html it worked well until the phone goes to sleep mode it never wakes up again I have to reboot it.why is this happening?
previous build was Tecno C8 (C8-H352-A2-L-20160307)

Check what the OP @ https://www.hovatek.com/forum/thread-16502.html did