Official certification (M5 Rom)

Instruction

1.Download the ROM file via above link; copy and paste the ROM file to internal storage;

2. Click “Setting” icon -> “About Phone”->“wireless update”, then click the icon at the top right corner, and choose “Local updates”;

3.Click into “internal storage”, find the ROM file and choose it;

4.Click “install now” and a POP box appears; choose “OK” to update.

5.It’s going to be finished soon.During this peroid,you device will be rebooted.

Please read the official instructions, any questions can be exchanged in the BBS to get the answer.
# Update Date Size Download
1 20180110 1.42G mediafire