Micro USB port have intermittent connection issue, the ground pins not soldered properly. Customer wants to replace the Micro USB port instead to re-solder the pins.
This pcb already soldered with switches and have an acrylic plate. To avoid damage the acylic plate during desoldering with heat gun. We add a corrugated cardboard in between the pcb and acrylic on the USB port area. Then heat gun and removed the USB socket. The pcb is cleaned with IPA for solder a new Micro USB port.
Micro USB port soldered. Excess flux is cleaned.
Assembled back the board.
Done. Arisu Keyboard.