Flashing the wrong firmware (e.g., a different region or variant) will cause boot loops or null IMEI. Download the exact for your model from a reliable source like firmware-update.net .
[Revised] How to use SP Flash tool to flash Mediatek firmware mtk flash tool v51420 free
: Found inside the specific firmware folder designed for your exact phone model. Flashing the wrong firmware (e
Here are some key features of MTK Flash Tool v51420: Flashing the wrong firmware (e.g.