Still can't register GSM

[arne anka]

>> did you check if all contacts of the sim are connected? (yes, it used to
>> work before, i know)

> I'm sorry, I don't understand the question. Connected to what?

to the contacts of the fr sim slot.
if i remember right, the fr's contacts are just some kind of springs which  
might very well loose suspension somehow.
additionally the sim itself is some kind of plastic which might deform.
while each might be completely inside the tolerance, together it might  
lead to some pads of the sim not being connected with the according pin.
putting some paper betwen the slider and the sim or pressing the sim down  
with a finger might help.