I have two small but nasty problems disturbing by every single call:
1) while phone is ringing for incoming call the phone tilts every single time (kind of restarts) if I touch to the screen to any other place than the answering slide. This happens always when I pick the phone from a pocket and practically have to touch to the screen. Talked to Nokia service center where they said that this is common problem without solutoin. Nokia Care people told that they had never heard about it... and asked to change the sim card. I changed the sim with no influence.
2) with every call at start and end I get a pop up window "packet data connection in hold/opened". I believe that this is due to my push email connection. However having these pop up windows with every single call and actually staying there for 5 seconds causes frustration from user experience point of view. Again Nokia Care blamed for old incompatible sim card, which was rubbish as new sim card did not change anything.
Appreciate any real tips for helping for these problems. I still try to use this terrible product until changing it to some better phone as I paid almost 700€ for a disaster device.