6600 keypad problem - GSM-Forum

Keke · 06-16-2004, 14:30

The phone dropped and the sreen will only show ligth , but the bit problem that keys 1,4,7 and menu will not work after force normal mode and will some time boot with no problem

rehot upp but no help .

I need assistance please.

[email protected]

pcommtech · 06-17-2004, 01:11

open the fone agen... check the keypad connector at the buttom... try cleaning it this myt help...

Keke · 06-17-2004, 09:24

Thank you but I did that many times.

AFR · 06-17-2004, 18:30

Hi Keke,

I have the same problem.
After the phone dropped keys 2,5,8 won't work.

There are 2 small black chips in the bottom area of the
pcb. I believe that this could be the problem because
one of the chips seems to be chiped on the edge...?

Sorry, I dont have their names....still looking for schematics!

Regards

AFR

Keke · 06-18-2004, 08:21

Thanks for your reply

Check pm

kiriazy · 06-19-2004, 12:54

try the litlle crystal under the keypad connector it works 100%

Keke · 06-19-2004, 13:48

Thanks
I also trace that from the service manual
but it is not easy to get that !!!

It so small but I will try to reball and see

keany · 06-19-2004, 16:40

he he replace the key chip its from glass 100% tha works
best regards keany

TONYTONY · 07-05-2004, 13:43

which one is the key chip?? is it one of those 2 chips near the keypad connector??

thanks
tonytony

loopkiller · 07-07-2004, 15:15

U can change this keypad driver from nokia 3650(glass) near keypad connector

riprex · 12-08-2004, 16:34

ok guys, the problem is really in the two BGA chips near the keypad connector. I was able to fix many of these whenever I had another 6600 to use as a donor. They are protection ICs similar to the one in 8310 near the sim connector. In 8310 we are able to take the chip off and put 3 shortcuts on the pins. Here it should be the same.
The question is: what is the shcematic?

redrose · 12-19-2004, 10:14

Key chip you all mention above called key filter.

MAJESTIC PIRATE · 12-22-2004, 17:08

yes as KIRIAZY said ( try the litlle crystal under the keypad connector it works 100%

TONYTONY · 01-17-2005, 15:35

WHAT DO YOU MEAN BY ( try the litlle crystal under the keypad connector it works 100%???

HEAT IT, REMOVE IT, OR REPLACE IT??

DOES ANY HAVE SCHEMATIC TO PUT 3 SHORTS INSTEAD OF REPLACING SINCE NEW FILTER IS NOT AVAILABLE!!

TONYTONY

baraka42 · 01-19-2005, 06:34

hi;

can anyone post here photo of keypad pcb both side ?

w.b.r.

06-16-2004, 14:30	#1 (permalink)
Keke No Life Poster Join Date: Jun 2002 Location: CT SA Age: 52 Posts: 1,387 Member: 12733 Status: Offline Thanks Meter: 26	6600 keypad problem The phone dropped and the sreen will only show ligth , but the bit problem that keys 1,4,7 and menu will not work after force normal mode and will some time boot with no problem rehot upp but no help . I need assistance please. [email protected]

06-17-2004, 01:11	#2 (permalink)
pcommtech Junior Member Join Date: Jun 2004 Location: philippines Age: 42 Posts: 26 Member: 69056 Status: Offline Thanks Meter: 0	try this open the fone agen... check the keypad connector at the buttom... try cleaning it this myt help...

01-19-2005, 06:34	#15 (permalink)
baraka42 No Life Poster Join Date: Aug 2002 Location: india Age: 63 Posts: 1,476 Member: 14578 Status: Offline Thanks Meter: 831	hi; can anyone post here photo of keypad pcb both side ? w.b.r. Last edited by baraka42; 01-19-2005 at 06:49.

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06-17-2004, 09:24	#3 (permalink)
Keke No Life Poster Join Date: Jun 2002 Location: CT SA Age: 52 Posts: 1,387 Member: 12733 Status: Offline Thanks Meter: 26	Thank you but I did that many times.

06-17-2004, 18:30	#4 (permalink)
AFR Insane Poster Join Date: Sep 2002 Location: South Africa Posts: 89 Member: 15928 Status: Offline Thanks Meter: 0	Hi Keke, I have the same problem. After the phone dropped keys 2,5,8 won't work. There are 2 small black chips in the bottom area of the pcb. I believe that this could be the problem because one of the chips seems to be chiped on the edge...? Sorry, I dont have their names....still looking for schematics! Regards AFR

06-18-2004, 08:21	#5 (permalink)
Keke No Life Poster Join Date: Jun 2002 Location: CT SA Age: 52 Posts: 1,387 Member: 12733 Status: Offline Thanks Meter: 26	Thanks for your reply Check pm

06-19-2004, 12:54	#6 (permalink)
kiriazy No Life Poster Join Date: Jan 2004 Location: faraway from heaven Age: 41 Posts: 594 Member: 50456 Status: Offline Thanks Meter: 1	try the litlle crystal under the keypad connector it works 100%

06-19-2004, 13:48	#7 (permalink)
Keke No Life Poster Join Date: Jun 2002 Location: CT SA Age: 52 Posts: 1,387 Member: 12733 Status: Offline Thanks Meter: 26	Thanks I also trace that from the service manual but it is not easy to get that !!! It so small but I will try to reball and see

06-19-2004, 16:40	#8 (permalink)
keany No Life Poster Join Date: May 2004 Location: gsm-land Age: 44 Posts: 755 Member: 67419 Status: Offline Thanks Meter: 237	he he replace the key chip its from glass 100% tha works best regards keany

07-05-2004, 13:43	#9 (permalink)
TONYTONY No Life Poster Join Date: Jul 2003 Location: BahaMAS Age: 40 Posts: 557 Member: 35975 Status: Offline Thanks Meter: 19	which one is the key chip?? is it one of those 2 chips near the keypad connector?? thanks tonytony

07-07-2004, 15:15	#10 (permalink)
loopkiller Freak Poster Join Date: Oct 2001 Age: 41 Posts: 258 Member: 7072 Status: Offline Thanks Meter: 10	U can change this keypad driver from nokia 3650(glass) near keypad connector

12-08-2004, 16:34	#11 (permalink)
riprex Junior Member Join Date: Dec 2004 Posts: 13 Member: 95872 Status: Offline Thanks Meter: 0	ok guys, the problem is really in the two BGA chips near the keypad connector. I was able to fix many of these whenever I had another 6600 to use as a donor. They are protection ICs similar to the one in 8310 near the sim connector. In 8310 we are able to take the chip off and put 3 shortcuts on the pins. Here it should be the same. The question is: what is the shcematic?

12-19-2004, 10:14	#12 (permalink)
redrose Major Poster Join Date: Dec 2004 Age: 41 Posts: 43 Member: 97091 Status: Offline Thanks Meter: 0	Key chip you all mention above called key filter.

12-22-2004, 17:08	#13 (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	yes as KIRIAZY said ( try the litlle crystal under the keypad connector it works 100%

01-17-2005, 15:35	#14 (permalink)
TONYTONY No Life Poster Join Date: Jul 2003 Location: BahaMAS Age: 40 Posts: 557 Member: 35975 Status: Offline Thanks Meter: 19	WHAT DO YOU MEAN BY ( try the litlle crystal under the keypad connector it works 100%??? HEAT IT, REMOVE IT, OR REPLACE IT?? DOES ANY HAVE SCHEMATIC TO PUT 3 SHORTS INSTEAD OF REPLACING SINCE NEW FILTER IS NOT AVAILABLE!! TONYTONY