mic problem on 7250 (very strange) - GSM-Forum

petermov · 01-24-2005, 19:24

I to all , I have a 7250i, it fails on mic, I´ve tried to change it, the same: mic failure. And after flash it I get "CONTACT SERVICE" I downgrade it to 7250 and update pm´s, it works ok but the mic fails again... the question is ...burn UEM or UPP?

Thanks to everybody.

servtelgsm · 02-24-2005, 16:32

change uem i do 3 pice

br

Masta G. · 02-24-2005, 23:00

check capacitors in mic circuit, use good optics, and better replace them all.
i don't think you must change uem, just heat it.
good luck.

petermov · 02-25-2005, 11:11

It was the uem. Thanks everybody.

01-24-2005, 19:24	#1 (permalink)
petermov Freak Poster Join Date: Aug 2004 Location: spain Age: 46 Posts: 472 Member: 79485 Status: Offline Thanks Meter: 47	mic problem on 7250 (very strange) I to all , I have a 7250i, it fails on mic, I´ve tried to change it, the same: mic failure. And after flash it I get "CONTACT SERVICE" I downgrade it to 7250 and update pm´s, it works ok but the mic fails again... the question is ...burn UEM or UPP? Thanks to everybody.

02-25-2005, 11:11	#4 (permalink)
petermov Freak Poster Join Date: Aug 2004 Location: spain Age: 46 Posts: 472 Member: 79485 Status: Offline Thanks Meter: 47	thanks It was the uem. Thanks everybody.

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02-24-2005, 16:32	#2 (permalink)
servtelgsm Freak Poster Join Date: Nov 2003 Location: romania Age: 42 Posts: 269 Member: 44038 Status: Offline Thanks Meter: 7	change uem i do 3 pice br

02-24-2005, 23:00	#3 (permalink)
Masta G. Freak Poster Join Date: Dec 2003 Location: Russia, Yaroslavl Age: 43 Posts: 149 Member: 46415 Status: Offline Thanks Meter: 16	check capacitors in mic circuit, use good optics, and better replace them all. i don't think you must change uem, just heat it. good luck.