Sp Flash Tool V5.1516 [better]
To make sure you have the right tools for your specific situation, I can help further if you tell me: What is the of your smartphone?
Rooting an MTK device usually requires flashing a patched boot.img or a custom recovery like TWRP/CWM. The "Download Only" mode in v5.1516 makes this a drag-and-drop process. sp flash tool v5.1516
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