Instructions for changing the language on DTNO.I devices

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

DTNO.I DTNO-I X3 DTNO.I DTNO-I X3
DTNO.I DTNO-I M3 DTNO.I DTNO-I M3