After pressing the resert for 15s nothing happenes, the leds remain the same. Fault and green constant on, also the internect connection leds green and yellow are on without blinking.
The PSU is ok i checked.
There are 3 ways to factory reset the miner how about the IPreporter have you tried it?
I will put the link here below so that you can find which reset method is working to s15.
Check the method from here "
3 ways to factory reset the miner"
If all of them are not working you have to report it to bitmain directly don't touch any hardware related as the suggested above if your miner is under warranty you have to directly report it to bitmain support.