: You have an authentication issue – see Part 6 above.
: MT6797 (Helio X20) has an additional big cluster partition for the Cortex-A72 cores. Use only scatter files extracted from the official stock ROM. sp flash tool support mt67xx
| Version | Best for MT67xx | Notes | |---------|----------------|-------| | | MT6735, MT6737, MT6753 | Most stable for non-secure boot. No authentication errors. | | SP Flash Tool v5.2100 | MT6750, MT6755, MT6795 | Improved NAND detection. Works with DA_PL.bin | | SP Flash Tool v5.2208 | MT6797 (Helio X20/X25) | Supports scatter files with 10-core cluster definitions. | | SP Flash Tool v5.2304 | All MT67xx (with Auth file) | Last version to natively support MT67xx before major UI overhaul. | : You have an authentication issue – see Part 6 above
The MT67xx series represents MediaTek’s powerful lineup of 64-bit processors, found in millions of budget and mid-range Android devices. Whether you are looking to unbrick a dead phone, upgrade firmware, or install a custom ROM, the SP Flash Tool is the essential utility for the job. Understanding SP Flash Tool for MT67xx | Version | Best for MT67xx | Notes
Let’s put theory into practice. This example uses a generic MT6737 device (e.g., Alcatel 1C).
Upgrade or downgrade the Android OS on your MediaTek device. Unbricking: