3310 mic problem - GSM-Forum

luccosenato · 05-17-2003, 20:02

I have a 3310 that scratch when i use internal mic , I just try to change it, but nothing.with external mic is all ok .
any suggestion?

thecult · 05-17-2003, 20:46

you must give more info. Is water damaged? dropped, violent hit?
are mic contacts clean and ok?

water damaged-> I would try to clean pcb with special machine (ultrasounds)

dropped -> try to reflow cobba?

but I'm not an expert

regards

luccosenato · 05-18-2003, 22:46

tank you for help , but I don't know how happened at the cell , because it is not myne.
Is possible that the cobba have some contact desoldered?
and there is a metod to resold the bga without a special air tools?
were can I try a tool for bga on internet that cost no so much?

GSMWolf · 05-19-2003, 17:47

Is possible that the cobba have some contact desoldered?

yes

and there is a metod to resold the bga without a special air tools?

no

were can I try a tool for bga on internet that cost no so much?

I think minimum for hotair rework station is about 250USD....

05-17-2003, 20:02	#1 (permalink)
luccosenato Insane Poster Join Date: Feb 2002 Location: Italy Age: 52 Posts: 75 Member: 9413 Status: Offline Thanks Meter: 1	3310 mic problem I have a 3310 that scratch when i use internal mic , I just try to change it, but nothing.with external mic is all ok . any suggestion?

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05-17-2003, 20:46	#2 (permalink)
thecult No Life Poster Join Date: Feb 2002 Location: burning phones Posts: 1,704 Member: 9700 Status: Offline Thanks Meter: 62	you must give more info. Is water damaged? dropped, violent hit? are mic contacts clean and ok? water damaged-> I would try to clean pcb with special machine (ultrasounds) dropped -> try to reflow cobba? but I'm not an expert regards

05-18-2003, 22:46	#3 (permalink)
luccosenato Insane Poster Join Date: Feb 2002 Location: Italy Age: 52 Posts: 75 Member: 9413 Status: Offline Thanks Meter: 1	tank you for help , but I don't know how happened at the cell , because it is not myne. Is possible that the cobba have some contact desoldered? and there is a metod to resold the bga without a special air tools? were can I try a tool for bga on internet that cost no so much?

05-19-2003, 17:47	#4 (permalink)
GSMWolf Freak Poster Join Date: May 2001 Location: Czech republic Posts: 142 Member: 4454 Status: Offline Thanks Meter: 0	Is possible that the cobba have some contact desoldered? yes and there is a metod to resold the bga without a special air tools? no were can I try a tool for bga on internet that cost no so much? I think minimum for hotair rework station is about 250USD....