siemens c35 no network - please help - GSM-Forum

anry · 09-16-2002, 23:36

siemens c35 no network - please help

1)reflash phone - without success
2)write new eeprom - without success
3) replace antenn switcher - without success
4) replace 4 box after switcher - - without success
5) replace big chip under second shield - - without success

still no network....
anybody can help ?

thanks !
Andrey

Deppe92 · 09-25-2002, 17:05

I have 2 C35 with the same problem. They fall to ground and after that the PCB was bent a little. By the first test the phone had found network but looses it permanently or shows ! before provider name. On the flickering lights I could see that the PA works. Antenna is OK. After 3 or 5 tests the phone has absolutely no network (always searching for network) but none found.
I rehottet the phone with hot-air but no result, still no network.
I think PCB is broken. Is there any default connection that brokes when phone falls to ground? Both phones worked fine before.
Anyone has the samo problem? Any solution for this?

gsmsalers · 09-26-2002, 00:24

Hi.
Change audio ic. Also change rf filters,pa. Then 100% works if your pcb not seriuosly damaged.
Bye

Deppe92 · 09-26-2002, 15:50

How do I see if PA is faulty? Does the phone always searching for network or is there a ! before provider name?

09-16-2002, 23:36	#1 (permalink)
anry Freak Poster Join Date: Nov 2001 Posts: 160 Member: 7159 Status: Offline Thanks Meter: 1	siemens c35 no network - please help siemens c35 no network - please help 1)reflash phone - without success 2)write new eeprom - without success 3) replace antenn switcher - without success 4) replace 4 box after switcher - - without success 5) replace big chip under second shield - - without success still no network.... anybody can help ? thanks ! Andrey

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09-25-2002, 17:05	#2 (permalink)
Deppe92 Insane Poster Join Date: Mar 2002 Age: 44 Posts: 71 Member: 10127 Status: Offline Thanks Meter: 1	I have 2 C35 with the same problem. They fall to ground and after that the PCB was bent a little. By the first test the phone had found network but looses it permanently or shows ! before provider name. On the flickering lights I could see that the PA works. Antenna is OK. After 3 or 5 tests the phone has absolutely no network (always searching for network) but none found. I rehottet the phone with hot-air but no result, still no network. I think PCB is broken. Is there any default connection that brokes when phone falls to ground? Both phones worked fine before. Anyone has the samo problem? Any solution for this?

09-26-2002, 00:24	#3 (permalink)
gsmsalers No Life Poster Join Date: Apr 2002 Location: Flash Age: 44 Posts: 1,943 Member: 11208 Status: Offline Thanks Meter: 11	Hi. Change audio ic. Also change rf filters,pa. Then 100% works if your pcb not seriuosly damaged. Bye

09-26-2002, 15:50	#4 (permalink)
Deppe92 Insane Poster Join Date: Mar 2002 Age: 44 Posts: 71 Member: 10127 Status: Offline Thanks Meter: 1	How do I see if PA is faulty? Does the phone always searching for network or is there a ! before provider name?