I flashed only root not EMMC, phone was not in contact with water or other sources of moisture. I have installed nitroid that is last what I can to check.
EDIT: I checked with Nitroid but I couldn't to disable airplane mod so I can't see if it works or not and today in service they said it's about hardvare - a crystal which readin sim card, about 30$ for repair.
OK I have flashed eMMC and root and problem are still and also I was yesterday in service and asked about hardware, they said everything is OK with all hardware components so I really don't know what to do. Only thing what I thinking it is nokia developed an code that after some time (after 1 or 2 years) send command to an hardware component to stop to work and after that there are no solutions and fixes how to repair it because that hardware part are working but it is disabed forever by nokia because they need us to buy new devices in short period. That's only what I have on my mind..I tried everything..everything and not fixed this **** with sim reading and all telephony function are disabled.. that can do only nokia.. sorry on grammar errors because I writing from an stupid notebook..
reflash it into a original firmware,then,like you said, you will still having the problem, so return to the nokia care point and complain your warranty,if they say no, try again and be angry if necessary. It worked for me when they said me that the usb port broken problem was because "I pull the charger so hard",I turn angry with them and finally they said me "Ok,we will send your phone to warranty departament,but it is almost sure that they will deny the warranty" Final result? A brand new N900.
reflash it into a original firmware,then,like you said, you will still having the problem, so return to the nokia care point and complain your warranty,if they say no, try again and be angry if necessary. It worked for me when they said me that the usb port broken problem was because "I pull the charger so hard",I turn angry with them and finally they said me "Ok,we will send your phone to warranty departament,but it is almost sure that they will deny the warranty" Final result? A brand new N900.
hope my story helps you.
thanks on a story but I have one more thing to add, when I flashed root I got error CMT flash failed and I tried to flash emmc and root 2x again and the same error everytime and also when I check *#06# there is no IMEI again
