Warning: Avoid random forums or file-sharing sites—many contain malware or corrupt images. Always use official sources.
Before any manual update, backup your current setup: Firmware TCL 502
If the phone is bricked, stuck in a boot loop, or won't take OTA updates, you may need to manually flash firmware using SP Flash Tool (for MediaTek chips) or TCL’s proprietary upgrade tool. Typical manual flashing steps:
Warnings:
Typical manual flashing steps: