Instructions for changing the language on GDL devices

How to change the menu and keyboard language to GDL devices step-by-step with images and video, instructions to add and change language to GDL brand mobile phones and tablets. Search your device among the wide range of GDL devices available.

GDL Xtreme 3 GDL Xtreme 3
GDL Xtreme 1 GDL Xtreme 1
GDL Xtreme 10 GDL Xtreme 10
GDL Xtreme 4 GDL Xtreme 4