820-3115B 1 till 9 keys not working.

[danezul123]

Very strange problem i have with this board.
Only keys from 1 till 9 including are not working, rest of them are working fine.
I've try different keyboard, the connector looks good, i even replaced the keyboard IC, nothing.
Don't know what to try next.
Any suggestions?

 

[2informaticos]

These keys do nothing, or generate erroneous characters?
It is really strange, as normally one row of keyboard keys is not connected on the same matrix raw.
Be aware, U5701 has firmware.
Use donor board; same model, or similar platform.
Did you try PRAM reset?

 

[danezul123]

I've find the issue, pin 27 on the keyboard connector, wasn't making contact property, i've replace the connector and the board is working fine now.
thank you.