Is there a way to unstuck it?, or it’s already dead?
What type of switch is it?
Fets tend to blow closed… change the fets, it will live again
solder at low temp right ? 160 degrees celcius? 270 odd farenheit?
With a blower, i usually set the temp to 240 celcius (465f)
with a soldering iron 370 celcius (700f)
It’s a torqueboard switch, it worked for months but it just stopped working as soon as I unplugged the on/off switch with the battery connected.
I’ll try to change the fets tomorrow, thanks guys!