What I'm Doing Wrong ....!!! - GSM-Forum

Byte · 01-10-2006, 13:56

Hello all.

i'm getting crazy from the keypad esd filter for nokia 6600

when i install this new filter to the phone, it works for 1 2, or 3 days perfectly after that the some keys become pressing automatically, and some keys do not work ....,

i reinstall new filters , it works for 2 3 days and the problem returns to phone, i face this problem with three phone nokia 6600 and did not solve it yet .... ther is something i do it wrong ,,,,, need some helpfull info ....

rajumobile · 01-10-2006, 16:23

Check the condition of your PCB. In some cases it has got bend due to impact or fallen.

Byte · 01-10-2006, 17:51

Quote:

Originally Posted by rajumobile

Check the condition of your PCB. In some cases it has got bend due to impact or fallen.

as i told u 3 phones in 1 week i face the same problem ...!!!!, this is not accedent !!! , i think i did something wrong !!!

Dave.W · 01-10-2006, 19:04

where are you getting replacement filters? my thought is that they are burning out so maybe not perfect stock???

CellWorm · 01-10-2006, 19:16

i am also facing same problem i think that key pad filter are not good.so from where i can get good filters in india.

naughtycell · 01-11-2006, 01:01

Quote:

Originally Posted by pritamsingh

i am also facing same problem i think that key pad filter are not good.so from where i can get good filters in india.

it could be good but damadged by excess heat , also other point some kindes of bad fluxes may cause this .

Byte · 01-11-2006, 06:20

Quote:

Originally Posted by naughtycell

it could be good but damadged by excess heat , also other point some kindes of bad fluxes may cause this .

what is the suitable temparture for installing these filters and what is the recommended flux ...?

i brought my filters from nokia service center, they r original

goffaman · 01-11-2006, 10:23

Quote:

Originally Posted by Byte

what is the suitable temparture for installing these filters and what is the recommended flux ...?
i brought my filters from nokia service center, they r original

better rehot first the part of the board where th part will be installed,.. then place the parts while the board is somewhat hot to avoid overheating th crystal ic,, done it lots of instances

goffaman · 01-11-2006, 10:24

the same temperature you use while mounting a flash ic..

Dave.W · 01-11-2006, 10:30

yuo can try make bridge of the pins, instead of using a new ic. i think this will produce lasting results..

you can find how to bridge yourself, using a continuity tester (most good multi meter have one in built).

just take an ic, and test for continuity on the balls underneath it. yuo will now see which pads on the board you must short with a wire link

01-10-2006, 13:56	#1 (permalink)
Byte Registered User Join Date: Sep 2003 Location: Palestine Age: 50 Posts: 1,951 Member: 39208 Status: Offline Thanks Meter: 152	What I'm Doing Wrong ....!!! Hello all. i'm getting crazy from the keypad esd filter for nokia 6600 when i install this new filter to the phone, it works for 1 2, or 3 days perfectly after that the some keys become pressing automatically, and some keys do not work ...., i reinstall new filters , it works for 2 3 days and the problem returns to phone, i face this problem with three phone nokia 6600 and did not solve it yet .... ther is something i do it wrong ,,,,, need some helpfull info ....

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01-10-2006, 16:23	#2 (permalink)
rajumobile No Life Poster Join Date: Feb 2004 Age: 52 Posts: 593 Member: 54993 Status: Offline Thanks Meter: 47	Check the condition of your PCB. In some cases it has got bend due to impact or fallen.

01-10-2006, 19:04	#4 (permalink)
Dave.W No Life Poster Join Date: Nov 2001 Location: England Age: 41 Posts: 2,821 Member: 7653 Status: Offline Thanks Meter: 823	where are you getting replacement filters? my thought is that they are burning out so maybe not perfect stock???

01-10-2006, 19:16	#5 (permalink)
CellWorm Freak Poster Join Date: May 2005 Location: BHARAT Age: 57 Posts: 218 Member: 146067 Status: Offline Thanks Meter: 76	i am also facing same problem i think that key pad filter are not good.so from where i can get good filters in india.

01-11-2006, 10:24	#9 (permalink)
goffaman Freak Poster Join Date: Jul 2005 Location: cebu Age: 43 Posts: 388 Member: 164237 Status: Offline Thanks Meter: 12	the same temperature you use while mounting a flash ic..

01-11-2006, 10:30	#10 (permalink)
Dave.W No Life Poster Join Date: Nov 2001 Location: England Age: 41 Posts: 2,821 Member: 7653 Status: Offline Thanks Meter: 823	yuo can try make bridge of the pins, instead of using a new ic. i think this will produce lasting results.. you can find how to bridge yourself, using a continuity tester (most good multi meter have one in built). just take an ic, and test for continuity on the balls underneath it. yuo will now see which pads on the board you must short with a wire link