I hear my voice in N620 ...!!! - GSM-Forum

Byte · 11-28-2004, 18:21

Hi ...,

I have a samsung N620 the mic does not work on the other party ..., but i can hear my voice in the speacker ...,

any suggestions ...?

cgsm · 11-30-2004, 18:59

JUST REFLOW THE BOARD.
and giv little more heat to mcu.

nen77 · 12-06-2004, 12:46

maybe you chose mic stopped from menu..
i dont think is hardware problem...
try reflash the unit

MAJESTIC PIRATE · 12-07-2004, 15:39

i think that is a mic problem only !!!!!!

nen77 · 12-07-2004, 15:44

is not the mic...for sure..
phone have audio circuit ok...it has to be software ...
plese post result how problem has been solved

ahmed nokia · 12-19-2004, 13:32

hi man i have this proplem in the last time
try chang handfree jak it will be jop

rajumobile · 12-19-2004, 14:45

Never try to reheat glued ICs ( CPU ). You can destroy the phone. Your audio path seems OK. you can put some sort of packing ( to press it on the board ) on CPU and audio ICs to solve this problem.

Regards..

nen77 · 12-20-2004, 13:20

Quote:

Originally Posted by rajumobile

Never try to reheat glued ICs ( CPU ). You can destroy the phone. Your audio path seems OK. you can put some sort of packing ( to press it on the board ) on CPU and audio ICs to solve this problem.

Regards..

man wake up we are removing glue from almost 1 year

for glued ic you can also use special hotting "plate"

cellularry · 12-20-2004, 20:38

Quote:

Originally Posted by nen77

man wake up we are removing glue from almost 1 year

for glued ic you can also use special hotting "plate"

what are you using to remove the glue.
thx

cgsm · 12-22-2004, 19:17

RAJUMOBILE ur correct,
dear friend nen77 please explain how to remove the glud ic from samsung boards pls explain
thanks a lot

nen77 · 12-23-2004, 13:05

at samsung models you need hot air and cutting tools...
hot the glued ic at 320-350 celsius and force the ic with a tool it wiil desolder ...just test on a dead board.....the hard part is to clean the mainboard....
i use a very sharp tip at 430 celsius...and i remove the glue by presind the tip to glue .......

.....this is for samsung

hard part is for nokia ...there i use a removing lichuid

a atached here the pdf wich was atached to removing glue solution

the way for using removing glue solution is not soo easy

i use a small piece of coton ...and a small quantity of solution ...i put the cooton on ic wich has to be removed...i put the board in a sealed plastic bag...and i let the mainboard for 1-3 days
after 2-3 days i use hot air for desoldering ic ....i clean remaing glue on the mainboard with a soldering iron at 420 degres

doctorvatson · 12-23-2004, 14:53

and after 430C 9 of 10 phone have to be swapped

nen77 · 12-23-2004, 19:04

Quote:

Originally Posted by doctorvatson

and after 430C 9 of 10 phone have to be swapped

soldering iron not hot air tested on many phones...
but solution is working on 70% cases

pava · 12-25-2004, 02:17

no chanses the remove glue. i try .REGARDS

nen77 · 12-25-2004, 15:30

Quote:

Originally Posted by pava

no chanses the remove glue. i try .REGARDS

im not the first one wichis doing that

i will make photo to a mainbord of 6310i with uem replacement(monday iwil make photos)

i will show the steps.....
anyway...i dont need to be belived....i realy doing this..and few frend of mine are doing same thing...there are few posts on this forum also about removing glue

11-28-2004, 18:21	#1 (permalink)
Byte Registered User Join Date: Sep 2003 Location: Palestine Age: 50 Posts: 1,951 Member: 39208 Status: Offline Thanks Meter: 152	I hear my voice in N620 ...!!! Hi ..., I have a samsung N620 the mic does not work on the other party ..., but i can hear my voice in the speacker ..., any suggestions ...?

12-06-2004, 12:46	#3 (permalink)
nen77 Freak Poster Join Date: Mar 2003 Age: 46 Posts: 405 Member: 25392 Status: Offline Thanks Meter: 10	check phone menu.. maybe you chose mic stopped from menu.. i dont think is hardware problem... try reflash the unit

12-07-2004, 15:44	#5 (permalink)
nen77 Freak Poster Join Date: Mar 2003 Age: 46 Posts: 405 Member: 25392 Status: Offline Thanks Meter: 10	if phone have voice in speaker.... is not the mic...for sure.. phone have audio circuit ok...it has to be software ... plese post result how problem has been solved

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11-30-2004, 18:59	#2 (permalink)
cgsm Freak Poster Join Date: Oct 2004 Age: 47 Posts: 380 Member: 88402 Status: Offline Thanks Meter: 489	JUST REFLOW THE BOARD. and giv little more heat to mcu.

12-07-2004, 15:39	#4 (permalink)
MAJESTIC PIRATE Freak Poster Join Date: Dec 2003 Location: E G Y P T Age: 47 Posts: 336 Member: 45635 Status: Offline Thanks Meter: 20	i think that is a mic problem only !!!!!!

12-19-2004, 13:32	#6 (permalink)
ahmed nokia No Life Poster Join Date: Jun 2004 Age: 44 Posts: 503 Member: 70206 Status: Offline Sonork: 100.1616268 Thanks Meter: 27	hi man i have this proplem in the last time try chang handfree jak it will be jop

12-19-2004, 14:45	#7 (permalink)
rajumobile No Life Poster Join Date: Feb 2004 Age: 52 Posts: 593 Member: 54993 Status: Offline Thanks Meter: 47	Never try to reheat glued ICs ( CPU ). You can destroy the phone. Your audio path seems OK. you can put some sort of packing ( to press it on the board ) on CPU and audio ICs to solve this problem. Regards..

12-22-2004, 19:17	#10 (permalink)
cgsm Freak Poster Join Date: Oct 2004 Age: 47 Posts: 380 Member: 88402 Status: Offline Thanks Meter: 489	RAJUMOBILE ur correct, dear friend nen77 please explain how to remove the glud ic from samsung boards pls explain thanks a lot

12-23-2004, 14:53	#12 (permalink)
doctorvatson No Life Poster Join Date: Aug 2001 Location: Russia Moscow Age: 46 Posts: 567 Member: 5889 Status: Offline Thanks Meter: 0	and after 430C 9 of 10 phone have to be swapped

12-25-2004, 02:17	#14 (permalink)
pava No Life Poster Join Date: Sep 2004 Location: srbija Age: 49 Posts: 590 Member: 80567 Status: Offline Thanks Meter: 53	no chanses the remove glue. i try .REGARDS