I recently got a secondhand NMB keyboard. But when I type this, I feel like the plastic keeps grinding.
In addition, some keys feel like they're stuck in the middle when press them.
So I thought it was because of the dust, so I took the whole keyboard apart and cleaned it. (The switch was also disassembled to clean and lubricate)
But I didn't solve this problem.
It still feel like scratchiness and getting stuck when I press the switch.
Please give me some advice
