Solution: replacing a new metal dome; wiping the metal dome; using the metal dome that has lots of dimples in the center
- The goldfinger on PCB (printed circuit board)/FPC (flexible printed circuit) is oxidized then affect the contact between the board and the metal dome.
Solution: replacing a new PCB or FPC
- The shape of the metal domeis not matched with the shape of tabs on the PCB/FPC.
Solution: replacing the corresponding metal dome according to the shape of tabs on the PCB/FPC.
- The gap between metal dome and the key is too large.
Solution: changing another metal dome with suitable stroke according to the parameter of design.
- The gap between the keys is too small
Solution: increasing the height of metal dome or shorten the gap between the key and metal dome.