recommend using a full backup file and SP Flash Tool to restore it. TNM Smart 4G
A: Check the battery. Some MT6731 devices require a charged battery. Also, try pressing Volume Up + Power while connecting to force preloader mode. mt6731 flash file
Always prioritize safety: download from trusted repositories, double-check your model number, and never skip the driver installation. With this guide, you now have the knowledge to unbrick, update, or restore any MT6731-powered smartphone. recommend using a full backup file and SP