No Network Nokia 8250

[afyf]

someone please explain me where can we connect signal generator or spectrum analyzer or frequency counter in this phone Nokia-8250 no network to check RF parts.

And please explain me how can we found the faulty parts like ?PA, CCONT, COBBA etc.

Thanks
afyf

[radmanz]

you should try and modify the RF switch first, it is a simple procedure, (make sure u remove the RF switch totally before mod), if that does not work, try reflow Hagar, if that does not work try PA.. If all fails throw it in da bin or use for parts.
Normally if PA is faulty you will get network then will drop out and never come back, or no signal at all
RF Switch faulty network will drop out upon command then come back.. its tricky!!!
Good luck!
lets just hope uBGA isnt faulty... hehehe

RaDmAnZ
MeLbOurNe

[afyf]

you should try and modify the RF switch first, it is a simple procedure, (make sure u remove the RF switch totally before mod), if that does not work, try reflow Hagar, if that does not work try PA.. If all fails throw it in da bin or use for parts.
Normally if PA is faulty you will get network then will drop out and never come back, or no signal at all
RF Switch faulty network will drop out upon command then come back.. its tricky!!!
Good luck!
lets just hope uBGA isnt faulty... hehehe

RaDmAnZ
MeLbOurNe

Thank you RaDmAnZ
I will try

Thanks
afyf