Mt6877 Flash Tool ~upd~ 【99% Tested】
This is usually a driver issue. Reinstall the Mediatek USB VCOM drivers and try a different USB port/cable.
For MT6877, you must use Version 6.x or higher, as older versions (V5) do not support the newer chip architecture. 2. MTK Client (Open Source) A powerful, free tool for advanced users. mt6877 flash tool
Flashing wipes everything. Move photos and contacts to the cloud. This is usually a driver issue