Before diving into “Hot” mode, let’s clarify the chipsets:
| Chipset | Common Codename | Xiaomi Models | Key Issue | | :--- | :--- | :--- | :--- | | MT6765 | Helio P35 / G35 | Redmi 9A, Redmi 9C, Redmi 9 (India), Redmi 10A | Chronic overheating during charging/gaming | | MT6785 | Helio G90 / G95 | Redmi Note 8 Pro, Redmi Note 9S, Poco M2 Pro, Redmi Note 10 (MT6785V) | Thermal throttling, sudden shutdowns |
Both chipsets are built on a 12nm FinFET process. While efficient in 2019, they are known to run hot under sustained loads. Once the internal temperature exceeds 70°C, the MediaTek BROM may lock into a “Hot State” to protect the NAND flash and CPU. sp flash tool for xiaomi mtk mt6765 mt6785 hot
SP Flash Tool alone cannot flash MT6785 without signed DA. Workaround using mtkclient:
# Unlock BROM (requires brom payload)
python mtk.py da seccfg unlock
When dealing with a “Hot” MT6765/MT6785, these errors are common: Before diving into “Hot” mode, let’s clarify the
| Error Code | Meaning | Fix |
| :--- | :--- | :--- |
| S_BROM_CMD_STARTCMD_FAIL (0x13BE) | BROM is too hot or PMIC undervoltage | Cool phone, use a powered USB hub |
| STATUS_EXT_RAM_EXCEPTION (0xC0050005) | Preloader is corrupt, causing thermal runaway | Use “RAM Test” first, then preloader-only flash |
| S_DL_GET_DRAM_SETTING_FAIL (0x13BE) | Wrong scatter file for MT6785 variant | Double-check chipset: MT6785V vs MT6785V/CC |
| ERROR : STATUS_DEVICE_CTRL_EXCEPTION (0xC0050001) | Xiaomi authentication required | Re-run Auth Bypass tool before hitting Download |
Place the phone in front of a fan for 15 minutes or put it in a sealed bag inside a refrigerator for 10 minutes (not freezer!). Do not flash a device that feels hot; you will kill the eMMC. SP Flash Tool alone cannot flash MT6785 without signed DA
Each full flash stresses the eMMC and PMIC, causing cumulative heat damage. Prefer “Download Only” for minor updates.