Ok, I did the paper under sim, worked for a while.
Then had to do the 'hammer' trick, again, worked for a while.
Now going to attempt the 'springs' last resort.

I am about to disassemble one of my N900's for the first time ever.
I am looking for the best info on this there is.
1) Disassembling.
2) Identifying the GSM chip. (Where it is on the motherboard.)
3) Applying the 'fix'


Can you help me please?