Qtek 8500 ROM 3.6.251 [QUESTION]

[Guest phshatiy]

Hey hey

I would like to ask few questions about ROM upgrade.

1a) First of all, I would like to ask, if someday I give my phone for repair, if they can see that I upgraded ROM or not (by reading something from hardware,.....)

1b) If a) is true, then is there a way how to backup my current ROM?

2) The latest ROM is 3.6.251 from Dangard. Does anybody know what are the changes?

3) I have 1.02.261.1 ROM in my phone. Am I also affected by the missed calls problem? I recieve calls quite often, so I didn't have time to keep my phone untouched for several hours as described in other forums.

Thanks a lot