P5000 (driver) not working correctly

devryd · 2023-12-20T15:40:44.507Z

I got this driver today (http://kaidomain.com/P5000-20mm-6A-1-cell-3V-4_5V-Driver-Board) and it has a problem: The driver works in the modes “high” and “turbo”, but the other modes have the following problem:
If I switch to one of these modes, the emitter lights up in the corresponding brightness for about a second. After that it flashes a little brighter once for a short time. After this the flashlight turns off.

I was hoping to fix the issue myself as a replacement would take about 3 weeks to get to me.

Thanks for your help

devryd · 2023-12-22T23:21:05.329Z

I tried resoldering some of the components on the driver and this solved the issue.