i have a little problem with my Nokia N900.
I made a "clear device" process on my phone and from this time i cannot make a call with my N900.
i tried to update a firmware but didn't help. When i turn on the phone, appears the follwoing error message:
"UNABLE TO ESTABLISH NETWORK CONNECTION. CONTACT SERVICE"
I send it to Nokia to check this, but hey told me that they cannot do with this anything due the device is not communicating the box, and they was unable to unload from the device the error status.
Phone cannot make a call with nor without SIM card (not able to make emergency calls)
It writes GENERAl ERROR.
After read a huge amount of blog pages I have a sugestion that the CELULAR MODEM is damaged. Can it be so?
Or have you any suggestion?
Thank you for your help in advance

http://talk.maemo.org/showthread.php?p=1307413 check this thread also do take it to local repair center heating the chip also does the job. Alternatevely this may also does the job if its loose contact http://zenu.wordpress.com/2013/06/23...ot-the-device/ also have a look at this though irrelaventhttp://talk.maemo.org/showthread.php?t=80759

As nokiabot said, those are the actual solutions, but the error is slightly different from what you just described. The error should be:

"All telephony functions are disabled due to a communication error..."

That could indicate a defective GSM driver chip or a loose GSM driver connection. The only professional solution to deal with this problem is to go to a local soldering service and do a complete reball or reflow for the GSM driver chip (reball or reflow, because the professional is going to know which process will fix the problem).

But, the next question how did you get it to this state, could you post a screenshot for the error?