This article is for educational purposes. Flashing firmware carries risk. The author is not responsible for any hardware damage or data loss. Always verify that your device is the XT1663 variant before proceeding.
For a less technical approach that safely source-checks your digital signatures automatically: This article is for educational purposes
If your is stuck in a bootloop, showing a "Dead" sign, or suffering from system errors, flashing the Stock Firmware is the most effective solution. This article covers the details of the MT6755 7.0 Nougat firmware designed for dead recovery and sign repair. Always verify that your device is the XT1663
: Open a command prompt in that directory and execute the flashing commands one by one. Typical commands include: mfastboot.exe flash partition gpt.bin mfastboot.exe flash boot boot.img mfastboot.exe flash recovery recovery.img mfastboot.exe flash system system.img_sparsechunk.0 (repeat for all sparsechunk files). Hard Brick Recovery (MTK Dead Fix) : Open a command prompt in that directory