Flashing with no "C" button

[riders4sia]

this is a hardware problem, the keypad IC needs to be replace.

[salterlee]

Hi there. Is that the membrane? If so, I have used three different working ones (from my other W810), but none work. It's really really odd. The only thing I can think now is the interface with the mainboard, but that looks fine.

[danutz019]

got the same problem on a k750i , but my keypad is working well ,

[riders4sia]

Hi there. Is that the membrane? If so, I have used three different working ones (from my other W810), but none work. It's really really odd. The only thing I can think now is the interface with the mainboard, but that looks fine.

if you've tried working membrane, then your problem would be the keypad filter IC, needs technician to do that.