My torch is not working

If the flashlight turns on but is very dim regardless of the brightness slider, it could be caused by a failing flash module, a camera-related issue, low battery, or a hardware fault.

If it's an iPhone, check whether the camera is also behaving normally. If you're seeing other symptoms like restarts or performance issues, run an iPhone panic log analysis to check for hardware-related errors. If it's an Android device, generate a bug report and run an online bug-report (crash) analysis to look for camera or system-related faults.