Er T29 with unstable access to network - GSM-Forum

ABCom · 05-23-2002, 05:22

Hi All!

I have Er T29 with unstable access to network.

Sometimes PA not start or start and working unstable.

Replacing PA - not help.
Replacing 13 Meg cristal - not help.

Any idea?
Help please!

05-23-2002, 05:46

Damaged PCB. I have one T20 which was in same problems, and it was "repaired" but died after 2 hours of work. I've opened phone and checked visualy - Anntena connector was changed, Buzzer was removed and soldered again, but PCB is damaged, PA is also changed, now phone works only with external power.(With loud crackling from audio)
So, i think there is problem with PCB below PA - if PA ****s it can damage PCB, and there is no repair solution. But in your case, you may change anntena connestor, it may help you.

misel · 05-24-2002, 14:39

also I have no network problem with T29 ,,,,T20 ,,,T28,,,, R310 ,,,I change everythink is possible in RF section and also 1011102 and reflow with hot air multi mode adapter ,,,change new signal processor ,,,filters also changed ,,,but nothing signal is 0 ,,, and always zero ,,and after few minutes ,,no network found

doctorvatson · 05-24-2002, 14:59

sometime it happans because soft

05-23-2002, 05:22	#1 (permalink)
ABCom Freak Poster Join Date: Mar 2002 Location: Ukraine Age: 52 Posts: 131 Member: 9893 Status: Offline Thanks Meter: 2	Er T29 with unstable access to network Hi All! I have Er T29 with unstable access to network. Sometimes PA not start or start and working unstable. Replacing PA - not help. Replacing 13 Meg cristal - not help. Any idea? Help please!

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05-23-2002, 05:46	#2 (permalink)
legija Guest Posts: n/a Member:	Damaged PCB. I have one T20 which was in same problems, and it was "repaired" but died after 2 hours of work. I've opened phone and checked visualy - Anntena connector was changed, Buzzer was removed and soldered again, but PCB is damaged, PA is also changed, now phone works only with external power.(With loud crackling from audio) So, i think there is problem with PCB below PA - if PA ****s it can damage PCB, and there is no repair solution. But in your case, you may change anntena connestor, it may help you.

05-24-2002, 14:39	#3 (permalink)
misel No Life Poster Join Date: Apr 2000 Location: near you Age: 60 Posts: 560 Member: 1196 Status: Offline Thanks Meter: 6	also I have no network problem with T29 ,,,,T20 ,,,T28,,,, R310 ,,,I change everythink is possible in RF section and also 1011102 and reflow with hot air multi mode adapter ,,,change new signal processor ,,,filters also changed ,,,but nothing signal is 0 ,,, and always zero ,,and after few minutes ,,no network found

05-24-2002, 14:59	#4 (permalink)
doctorvatson No Life Poster Join Date: Aug 2001 Location: Russia Moscow Age: 46 Posts: 567 Member: 5889 Status: Offline Thanks Meter: 0	sometime it happans because soft