Before we get any further: having me fix broken mice costs more than if you just sent it to me to begin with.
Why? Because now you need someone who knows not just how to do the original switch swap, but you need someone who knows how to do a switch swap on a mouse with a known bad PCB, or you need to buy a new mouse.
Fixing a job gone wrong takes much longer than just doing it correctly from the jump.
For this reason, the cost for me to fix your broken mouse is 50% of MSRP, with a minimum base cost of $75.
For example, if you broke your Starlight-12, and I was able to fix it, the labor cost is $94.5, plus return shipping and parts costs. GPW Superlight would be $75 plus return shipping and parts costs. Zowie FK1 would be $75 plus return shipping and parts costs (aka not really worth it unless you had to have your choice of switches).
To get started: Take well lit, crystal clear video and photos of the solder job in questions, and put them into an Imgur album or Google Drive folder. Fill out the switch swap order form, include the link to the photos/albums, tell me what’s going on with the mouse, and I will assess the damage and let you know if I am willing to take on the job, and we can go from there.