26. How to solve the crashing in File Management app after updating the firmware?
Please try to install this file management app for help: click here.
How to install the app: You can copy the apk file of the qualified app to the M6, then open the File Management app, locate and click on the apk file to install it.
You would need to remove the white list limitation first: go to "Settings -> General > About device" and tap 7 times on 'Kernel version' to remove the limitation,and then reboot the player.