Using the wrong file or formatting the wrong partition (especially in SP Flash Tool) can permanently damage your phone's software.

For devices using MTK chips (Xiaomi, Oppo, Vivo, Realme), this is the gold standard for open-source software.

Spreadtrum (now Unisoc) chips are found in ultra-budget devices, including many BLU, Nokia (low-end), and Chinese smartwatches.