Instructions to reset, hard reset, factory reset or restore Blue devices

How to reset, reset, factory reset, hard reset on Blue devices step-by-step, instructions for formatting and deleting all content on Blue brand devices.
Resetting a Blue is very simple by following the correct steps, find your model and find a way to perform the reset step-by-step. Performing a factory format or reset is very useful when you want to sell or give away your mobile device, or it works very slowly due to lack of space.

Blue Gate BG4 Blue Gate BG4
Blue Gate BG4I Blue Gate BG4I
Blue Gate BG3 Blue Gate BG3