Instructions to pin screen on China-Mobile devices

How to protect your privacy when lending a China-Mobile smartphone or tablet to someone else. Instructions for setting up "screen pinning" on a China-Mobile brand device. Block an application on the screen from which the user will not be able to exit without knowing the unlock pin, in this way you will prevent them from seeing your messages, photos and private data that you do not want to show.

China-Mobile China Mobile M821 China-Mobile China Mobile M821
China-Mobile China Mobile K500 China-Mobile China Mobile K500
China-Mobile China Mobile MT6577 China-Mobile China Mobile MT6577
China-Mobile China Mobile W83 China-Mobile China Mobile W83
China-Mobile China Mobile M823 China-Mobile China Mobile M823
China-Mobile China Mobile N9008 China-Mobile China Mobile N9008
China-Mobile China Mobile M623C China-Mobile China Mobile M623C
China-Mobile China Mobile M631 China-Mobile China Mobile M631