Hi,

I sent my N9 for repair (malfunctioning audio jack) and it came back today. While the original problem seems to have been fixed, new problems seem to have crept in. Namely:

1. The stand by screen. It is visible for about 5s and then goes off. Not always visible like it used to be.
2. I can't turn on the display by double tapping the screen.

Any idea on how to fix these? Or is it possible that a wrong part was used by the repair guys that might be causing this problem?

just to strike things off one-by-one:

did you check everything is fine in settings?

Yes, I did check the settings. Everything is fine there, however, the problem seems to run deeper. When I receive a call, the screen remains blank. It doesn't wake up.

in terminal as root:

apt-get install system-ui-screenlock-nokia --reinstall

I think his problem isnt the standby screen, i think nokia is bad at service...

But, still replace the standby screen

nokia being bad at surprise...why doesn't that surprise me...

it could be a loose ribbon or sth like that but replacing standby screen is essential as he says it disappears after 5secs...

It could be a loose ribbon... that's what i was thinking too

That didn't help.

I had exactly the same (double tap non working and standby screen going off) issue and reinstalling system-ui-screenlock-nokia fixed the problem.

then nokia care please welcome rahulthewall for his second innings...