Early MTK devices (e.g., MT6572, MT6582, MT6592) used NAND flash with bad blocks. Version 0.9.13.0 has a more tolerant bad-block management algorithm compared to v5.x, which often aborts on any BBT mismatch.
Malicious actors have repackaged v0.9.13.0 with trojaned DA files that: flashtool-0.9.13.0
Always hash-check the DA binary against known good dumps (e.g., from MTK SDK archives). Early MTK devices (e
Official Sony servers no longer host old firmwares. Your best sources: Always hash-check the DA binary against known good dumps (e