N95 8gb Network problem - GSM-Forum

Wynsak · 09-02-2009, 12:55

Hi, I received a N95 8gb with no network. I replaced the following:
N7520 FEM (had 3 broken contacts), N7540 WCDMA pa, Z7582, Z7503, Z7540, Z7541, Z7501.
Now I get no signal when DUAL mode is selected. When i select UMTS mode, i get full signal on MTN simcard. When i then select DUAL mode, I get full signal. When i select GSM mode, i get no signal
When I use VODACOM simcard, i get no signal, even in UMTS mode. This is very confusing. As far as i know, gsm mode is 900/1800 mhz. UMTS mode is 1900mhz. What am i overlooking, or might this be a software problem?

Please help!!!

mahbubalfa · 09-02-2009, 14:26

Bro.this hardwere problem...........
try it...N95 8gb network solution here............

http://forum.gsmhosting.com/vbb/showthread.php?t=811705

Wynsak · 09-02-2009, 15:08

Thanks, but not solved.

Wynsak · 09-03-2009, 08:29

I found this in service manual. What exactly does this mean?
Pre-baking

These parts are moisture sensitive and must be pre-baked prior to soldering:
• RFIC N7505
• Front End Module (FEM) N7520
• WCDMA PA N7540

Wynsak · 09-03-2009, 14:42

Still waiting for help. Any clever people out there?

09-02-2009, 12:55	#1 (permalink)
Wynsak Freak Poster Join Date: Mar 2007 Location: Heidelberg Posts: 271 Member: 458909 Status: Offline Thanks Meter: 33	N95 8gb Network problem Hi, I received a N95 8gb with no network. I replaced the following: N7520 FEM (had 3 broken contacts), N7540 WCDMA pa, Z7582, Z7503, Z7540, Z7541, Z7501. Now I get no signal when DUAL mode is selected. When i select UMTS mode, i get full signal on MTN simcard. When i then select DUAL mode, I get full signal. When i select GSM mode, i get no signal When I use VODACOM simcard, i get no signal, even in UMTS mode. This is very confusing. As far as i know, gsm mode is 900/1800 mhz. UMTS mode is 1900mhz. What am i overlooking, or might this be a software problem? Please help!!!

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09-02-2009, 14:26	#2 (permalink)
mahbubalfa No Life Poster Join Date: Dec 2006 Location: Bangladesh Age: 38 Posts: 9,990 Member: 1003058 Status: Offline Sonork: 100.1589274/mahbubalfa Thanks Meter: 26,433	Bro.this hardwere problem........... try it...N95 8gb network solution here............ http://forum.gsmhosting.com/vbb/showthread.php?t=811705

09-02-2009, 15:08	#3 (permalink)
Wynsak Freak Poster Join Date: Mar 2007 Location: Heidelberg Posts: 271 Member: 458909 Status: Offline Thanks Meter: 33	Thanks, but not solved.

09-03-2009, 08:29	#4 (permalink)
Wynsak Freak Poster Join Date: Mar 2007 Location: Heidelberg Posts: 271 Member: 458909 Status: Offline Thanks Meter: 33	I found this in service manual. What exactly does this mean? Pre-baking These parts are moisture sensitive and must be pre-baked prior to soldering: • RFIC N7505 • Front End Module (FEM) N7520 • WCDMA PA N7540

09-03-2009, 14:42	#5 (permalink)
Wynsak Freak Poster Join Date: Mar 2007 Location: Heidelberg Posts: 271 Member: 458909 Status: Offline Thanks Meter: 33	Still waiting for help. Any clever people out there?