Firmware Oppo A78 4g Hot -

  1. Troubleshooting quick checklist

    Below the comment, a function:

    1. Avoid using the phone while charging at 33W – The combined heat from charging and CPU load will exceed 50°C.
    2. Turn off "RAM Expansion" – This feature (using storage as virtual RAM) causes constant I/O read/write, heating up the UFS chip. Find it in Settings → About Device → RAM.
    3. Disable 5G (even though this is a 4G phone) – Some firmware builds mistakenly keep the 5G modem search active. Go to SIM settings → Preferred network type → 4G only.
    4. Use a slower charger – A standard 10W or 18W charger produces less heat during firmware’s charging curve.

    One line glowed red:

    : This feature uses internal storage as virtual RAM, which can increase heat if storage is nearly full. Disable it via Settings > About device > RAM Manage Background Apps firmware oppo a78 4g hot

    How to update:

    Before fixing the heat, identify your firmware: Avoid using the phone while charging at 33W