3510: I hear network searching in Buzzer - GSM-Forum

Chris02 · 06-22-2004, 19:09

I have a 3510 where i can hear the networ connection noise, if u hold the phone before a loudspeaker, in the buzzer!

I already changed the buzzer speaker and flashed the phone! But no succeed!

What else can I do?

It's very urgend!

THX!

themobileking · 06-22-2004, 19:11

Change the Mic or check the connection of the Mic

Chris02 · 06-22-2004, 19:21

THX for fast reply!!

I'll try it if the (angry

) customer brought the phone back

themobileking · 06-22-2004, 19:43

Always welcome my friend

Chris02 · 06-25-2004, 22:21

ok. I tried it! But still the same!

I removed the mic too! But still the same!!!

What else could it be?

Chris02 · 06-27-2004, 13:37

Nobody with a new idea???

Plz! It is urgend!

Thx!

SPUnlock_SK · 06-27-2004, 20:17

yes probably water damaged, use ultrasonic cleaner

b0ba · 06-27-2004, 21:07

I had this problem today with 7110.
This problem is common for whater demaged motorolas but not nokias. On motorola phones resoldering GCAP helps.
But on nokia????? Aspeciaslly on DCT3 (in my case)....???

Chris02 · 06-27-2004, 22:14

right. The phone was water damaged. It was cleaned in alcohol. Phone is working...but strange noise

I'll pu it in alcohol again and rehot it tomorrow.

leosedf · 06-27-2004, 22:18

check also the connections from the PA

b0ba · 06-28-2004, 16:44

@leosedf: What do you mean?

leosedf · 06-28-2004, 16:48

i mean cold joints. i had many times that problem and many times resolved with just a reflow on the PA

b0ba · 06-28-2004, 17:42

As I'm not the last person on electronics especially on VHF band can't understand how PA soldering can influance on Voice codec analog lines. In Chris02's case and in motorola case there is a possibility of some oxidizetion...
But not on DCT3 phone asspecially with sIEMENS frontend. 7110 in my case.

goanga · 07-05-2004, 19:55

Solved one 3510 with same problem after water damage only by rehoting PCB ... try this before starting to change components ! good luck !

06-22-2004, 19:09	#1 (permalink)
Chris02 No Life Poster Join Date: Oct 2003 Location: Germany Age: 37 Posts: 5,196 Member: 41076 Status: Offline Thanks Meter: 53	3510: I hear network searching in Buzzer I have a 3510 where i can hear the networ connection noise, if u hold the phone before a loudspeaker, in the buzzer! I already changed the buzzer speaker and flashed the phone! But no succeed! What else can I do? It's very urgend! THX!

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06-22-2004, 19:11	#2 (permalink)
themobileking No Life Poster Join Date: Jun 2001 Location: Uranus Age: 53 Posts: 731 Member: 5072 Status: Offline Thanks Meter: 91	Change the Mic or check the connection of the Mic

06-22-2004, 19:21	#3 (permalink)
Chris02 No Life Poster Join Date: Oct 2003 Location: Germany Age: 37 Posts: 5,196 Member: 41076 Status: Offline Thanks Meter: 53	THX for fast reply!! I'll try it if the (angry ) customer brought the phone back

06-22-2004, 19:43	#4 (permalink)
themobileking No Life Poster Join Date: Jun 2001 Location: Uranus Age: 53 Posts: 731 Member: 5072 Status: Offline Thanks Meter: 91	Always welcome my friend

06-25-2004, 22:21	#5 (permalink)
Chris02 No Life Poster Join Date: Oct 2003 Location: Germany Age: 37 Posts: 5,196 Member: 41076 Status: Offline Thanks Meter: 53	ok. I tried it! But still the same! I removed the mic too! But still the same!!! What else could it be?

06-27-2004, 13:37	#6 (permalink)
Chris02 No Life Poster Join Date: Oct 2003 Location: Germany Age: 37 Posts: 5,196 Member: 41076 Status: Offline Thanks Meter: 53	Nobody with a new idea??? Plz! It is urgend! Thx!

06-27-2004, 20:17	#7 (permalink)
SPUnlock_SK No Life Poster Join Date: Jul 2002 Location: Slovakia Age: 43 Posts: 1,535 Member: 13922 Status: Offline Thanks Meter: 334	yes probably water damaged, use ultrasonic cleaner

06-27-2004, 21:07	#8 (permalink)
b0ba No Life Poster Join Date: Oct 2001 Location: No route to host. Age: 43 Posts: 895 Member: 6772 Status: Offline Thanks Meter: 17	I had this problem today with 7110. This problem is common for whater demaged motorolas but not nokias. On motorola phones resoldering GCAP helps. But on nokia????? Aspeciaslly on DCT3 (in my case)....???

06-27-2004, 22:14	#9 (permalink)
Chris02 No Life Poster Join Date: Oct 2003 Location: Germany Age: 37 Posts: 5,196 Member: 41076 Status: Offline Thanks Meter: 53	right. The phone was water damaged. It was cleaned in alcohol. Phone is working...but strange noise I'll pu it in alcohol again and rehot it tomorrow.

06-27-2004, 22:18	#10 (permalink)
leosedf No Life Poster Join Date: Jul 2003 Location: Thessaloniki,Hellas Age: 44 Posts: 1,013 Member: 33547 Status: Offline Thanks Meter: 17	check also the connections from the PA

06-28-2004, 16:44	#11 (permalink)
b0ba No Life Poster Join Date: Oct 2001 Location: No route to host. Age: 43 Posts: 895 Member: 6772 Status: Offline Thanks Meter: 17	@leosedf: What do you mean?

06-28-2004, 16:48	#12 (permalink)
leosedf No Life Poster Join Date: Jul 2003 Location: Thessaloniki,Hellas Age: 44 Posts: 1,013 Member: 33547 Status: Offline Thanks Meter: 17	i mean cold joints. i had many times that problem and many times resolved with just a reflow on the PA

06-28-2004, 17:42	#13 (permalink)
b0ba No Life Poster Join Date: Oct 2001 Location: No route to host. Age: 43 Posts: 895 Member: 6772 Status: Offline Thanks Meter: 17	As I'm not the last person on electronics especially on VHF band can't understand how PA soldering can influance on Voice codec analog lines. In Chris02's case and in motorola case there is a possibility of some oxidizetion... But not on DCT3 phone asspecially with sIEMENS frontend. 7110 in my case.

07-05-2004, 19:55	#14 (permalink)
goanga No Life Poster Join Date: Mar 2004 Location: romania Age: 42 Posts: 742 Member: 57035 Status: Offline Thanks Meter: 70	Solved one 3510 with same problem after water damage only by rehoting PCB ... try this before starting to change components ! good luck !