Better go from behind... This way inside is hard as hell and wondering if you break something... :-(

Used 2 bigger paperclips. Straightened into single wire. Then in one of the previous bends I had bent it again and squeezed with pliers together so I have 2 "legs" of this improvised tool for better stiffness of wire. Went out nicely. It actually looks like a older hairpin, but more flattened...

But now I see there is a lot of paperclips on the market. Only the "smaller" ones I might use to bent it into 3 parts. So it depends of what is lying around.

Its better to carefuly “flip” the board towards battery compartment and then take the connector out. The way, how it is written here, its badly accessible with fingers and with tweezers and the connector has plastic point which clicks into hole in the middle of connector. So its better to carefully flip the board upside out and then take it carefully out.

I have heat gun, that is able to set temperature (from 50 to 600 celsius) so what is the best value for LOW and HIGH? I had seen a lot of videos on YT and read a lot of manuals, but never had found out, the correct temperature…