@philwilkinson said in Hand soldering OEM modules: Has anyone managed to successfully hand solder the OEM modules onto the reference boards? Lots of solder. Higher great settings. Patience. Nothing seems to work! Yes I've done this many times. My secret is lots of flux, drag soldering and cleaning up with solder wick and more flux. Most problems come from using too much solder creating shorts underneath the pads or too little solder and not making a solid connection.