N3210 signal unstable - GSM-Forum

fiZ · 08-08-2002, 12:39

phone can work floor of day,afterwards can signal to disappear,again appear,how to decide this problem?

Thanx

Pandemonio100 · 08-09-2002, 20:44

Try to change antenna and control if connector on the board are broken or bad soldered

Hary · 08-10-2002, 04:13

signal lost is very very complex problem. so if you want to repair it, you must be carefull and slowly and step by step.
the first check simple problem like connector antenna, sim card connector, batery connector & board position.
its all ok, you must testing to replace one by one your chip:
1. PA (power amplifier)
2. Switch Antenna
3. haggar
4. cobba
5. ccont
but don't forget, signal lost can be repair using software. so try to repair with software first.
good luck...................

fiZ · 08-10-2002, 07:21

I all this must change,or be a variant to rehot?

and else,develop filters can not be problem?for instance filter 13 mHz?

thanx

08-08-2002, 12:39	#1 (permalink)
fiZ Registered User Join Date: Feb 2002 Location: nokia Age: 48 Posts: 204 Member: 9626 Status: Offline Thanks Meter: 0	N3210 signal unstable phone can work floor of day,afterwards can signal to disappear,again appear,how to decide this problem? Thanx

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08-09-2002, 20:44	#2 (permalink)
Pandemonio100 No Life Poster Join Date: Feb 2001 Location: ITALY Age: 51 Posts: 3,969 Member: 3381 Status: Offline Thanks Meter: 1,171	Try to change antenna and control if connector on the board are broken or bad soldered

08-10-2002, 04:13	#3 (permalink)
Hary Freak Poster Join Date: Feb 2002 Location: Jakarta Posts: 149 Member: 9261 Status: Offline Thanks Meter: 0	signal lost is very very complex problem. so if you want to repair it, you must be carefull and slowly and step by step. the first check simple problem like connector antenna, sim card connector, batery connector & board position. its all ok, you must testing to replace one by one your chip: 1. PA (power amplifier) 2. Switch Antenna 3. haggar 4. cobba 5. ccont but don't forget, signal lost can be repair using software. so try to repair with software first. good luck...................

08-10-2002, 07:21	#4 (permalink)
fiZ Registered User Join Date: Feb 2002 Location: nokia Age: 48 Posts: 204 Member: 9626 Status: Offline Thanks Meter: 0	I all this must change,or be a variant to rehot? and else,develop filters can not be problem?for instance filter 13 mHz? thanx