Is the keyboard "dying" or will it still live?

Question

Do it yourself

The day before yesterday, the keys stopped working in the Acer Aspire E1-532G laptop: left Shift, 6, 8, 9, PrtSc / SysRq, Pause Break. Even yesterday, these keys sometimes worked, today it is no longer possible to press them. I didn't spill anything on the keyboard.
Is it possible to repair it? Or look for a new replacement?

Answer 1

Perhaps the harness does not contact, remove the keyboard and connect it to the periphery

Answer 2

Perhaps it will be enough to "fix" the keyboard cable (remove, clean, insert).

Answer 3

According to the symptoms, it looks like a break in the keyboard cable or a broken contact in the keyboard substrate, change the entire keyboard, it cannot be repaired.