Instructions to pin screen on Changjiang devices

How to protect your privacy when lending a Changjiang smartphone or tablet to someone else. Instructions for setting up "screen pinning" on a Changjiang 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.

Changjiang ChangJiang P5 Changjiang ChangJiang P5
Changjiang N8100 Changjiang N8100
Changjiang N7300 Changjiang N7300
Changjiang N7100 Changjiang N7100
Changjiang N5300 Changjiang N5300
Changjiang GMate 6589 Changjiang GMate 6589
Changjiang G22 Changjiang G22