If your model has the dedicated hardware button, the firmware allows you to customize it for single, double, or long-press actions (e.g., opening the camera or flashlight).
This information is general; specifics can vary based on your device's region and current software situation. Firmware TCL 20E
| Problem | Solution | |--------|----------| | SP Flash Tool error STATUS_BROM_CMD_FAIL | Reinstall MTK USB drivers or use a USB 2.0 port. | | Phone stays in bootloop after flash | Wipe cache from recovery (Vol Up + Power). | | No IMEI / No service | Restore NVRAM backup or use Maui Meta Tool. | If your model has the dedicated hardware button,
: If a cache wipe doesn't work, a "Factory Reset" from the Recovery menu can restore the OS, but it erases all user data Official Repair Support | | Phone stays in bootloop after flash
