Some technicians misinterpret "hot" as heating the chip with a hot air gun. Do not do this. Heating the MT6769 to 300°C to force reballing while flashing is a myth. You will destroy the PMIC (Power Management IC).
Assuming model XYZ with MT6769 and you have stock ROM:
Ensure the device is in BROM mode (completely off, then connect USB while holding specific keys, usually Vol+ or Vol-). BROM mode does not mount any partition. mt6769 scatter file hot
Step 1 – Check device state
Connect via mtkclient or SP Flash Tool’s “Read Back” to see which partitions are accessible.
Step 2 – Parse scatter file
Look for unusual flags. Example from some OEMs: Some technicians misinterpret "hot" as heating the chip
__attribute__((hot)) # C-style annotation in some source scatter files
This is not standard in final scatter.txt.
Step 3 – Compare with known good scatter
Download a verified MT6769 scatter file from a stock ROM (e.g., from Xiaomi Redmi 9 or Realme Narzo 50i) and diff. This is not standard in final scatter
Step 4 – Update flashing tool
SP Flash Tool v5.2124 or newer handles hot partitions better.
With Android 13 and 14 updates on MT6769 devices (e.g., Realme UI 4.0, MIUI 14), MediaTek has introduced Secure Boot v2. This update:
The "scatter file hot" method is already becoming more difficult. New tools like CM2 MTK Pro and UnlockTool now emulate a "warm" flash (a hybrid between cold and hot) using leaked engineering DA files.