Determine if your model uses an MTK (MediaTek) or Qualcomm chipset. MTK devices generally require the SP Flash Tool .
Ensure your battery is at least 30% charged and you are connected to a stable Wi-Fi network before starting. 2. Official Mobile Upgrade Tool Firmware TCL 502
The tool will automatically detect your current version and guide you through the process of installing the latest official software. 3. Manual Flashing (For Advanced Users) Determine if your model uses an MTK (MediaTek)