Instructions to pin screen on Firefly devices

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

Firefly S100Q Firefly S100Q
Firefly Intense Mini Firefly Intense Mini
Firefly S100 Firefly S100
Firefly V65 Firefly V65
Firefly Allure 64 LTE Firefly Allure 64 LTE
Firefly Aurii Force Firefly Aurii Force
Firefly GT50 Firefly GT50
Firefly Metal Grand Firefly Metal Grand
Firefly R90 Firefly R90
Firefly Vision 5X Firefly Vision 5X
Firefly Vivid Premium Firefly Vivid Premium
Firefly AURII F8 Premium Firefly AURII F8 Premium
Firefly S110Q Firefly S110Q
Firefly S20 Dual Firefly S20 Dual
Firefly Vision 4 Firefly Vision 4
Firefly Xceed Firefly Xceed
Firefly Z2 Firefly Z2
Firefly AURII Inspire Firefly AURII Inspire
Firefly AURII Vivid PRO Firefly AURII Vivid PRO
Firefly GT100 SL Firefly GT100 SL