1100 strange nw problem

hi brothers i hav nokia 1100 that has the network problem.
it was loosing the nw sm times. then i heated the pa nd the antenna switch. then i removed the antenna swich nd make the jumpers of 900 Mhz. now in india cell one, spice nd airtel r the operators that works on tha frequency. now problem is that the fone shows airtel for all the time nd spice for sm times in the manual search but not the bsnl nd has no tower range of cell one. wen i put that sim in other fone it works on full range.
fone was not damaged as said by the customer it happened naturally.........[You must be registered and logged in to see this image.]
i hav flash the fone after full erase also.....
what shud i do plz suggest.

bro right good pm
ur problem solved

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try this ur prob.solved

try to replace good filter for 900 MHz bro. Jumper is not too good to pick up signal.

first flash
2nd rehot pa and antina
3rd replace pa

Quote :

thanks to me...

Thank You!!!!!!!!

change crystal