1100 Keypad Problem! - GSM-Forum

Harisk · 02-13-2008, 16:10

Hi

I have 1100, key "7" not working. The board is clean and no sign of water damage. Cleaned the pad on the board and also the bubble. Did n't solve the problem. Can any body help? PLEASE!

Regards

nasirahmed · 02-15-2008, 04:04

Search hardware section. I can remember this problem was discussed there but can't remember the thread/link.

Harisk · 02-15-2008, 18:28

Hi, I have already searched the forum and did n't get any correct answer. I have also checked the schematics and found that the centre pad of the key goes directly to the UPP OR UEM. So I applied heat on UPP applying and the Key 7 became functional. I did it in night but in the morning I found that the key is again not working. I noted that when I switch on the phone by pressing and holding the power on key for a long period(I keep holding the pwr on key) the digit 7 appears before "Insert sim card" is displayed. More over sometimes 7 appears when i press 4 or * key. In the next night applied flex on UPP and UEM and applied hot air. Now for the last 18 hrs the set was OK and I returned the set to the customer feeling that the set is OK. Let us hope the the best.

Thank you for your reply!

yuval44 · 02-16-2008, 13:49

you need to change ic

Harisk · 02-16-2008, 17:11

Quote:

Originally Posted by yuval44

you need to change ic

Which IC you mean brother? We know there are somany ICs on the board, which one of them should i change? Please tell?

bhogpurmail · 02-16-2008, 17:15

friends
The 7 no. print goes to cpu............
so, rehot the cpu.................

nasirahmed · 02-16-2008, 19:37

Wish you best luck too.

blackson · 02-17-2008, 08:00

the problem is keypad ic it is very small, i have already encoutered these problem and i try to changed the keypad ic and the phone was okey.

Harisk · 02-18-2008, 19:49

Quote:

Originally Posted by blackson

the problem is keypad ic it is very small, i have already encoutered these problem and i try to changed the keypad ic and the phone was okey.

1100 does not have keypad IC brother. Please read the post and refer the schematics before you post.

Good luck!

kailash_gm · 02-18-2008, 20:25

no need to rehot or change uem

u just need to give packing on upp if u give packing

keypad will start work
for more contact me on my yahoo id

jimm07ct · 02-19-2008, 06:39

Quote:

Originally Posted by blackson

the problem is keypad ic it is very small, i have already encoutered these problem and i try to changed the keypad ic and the phone was okey.

1100 has no keypad ic

7 no key line is from cpu

so rehot cpu

best of luck

Harisk · 02-19-2008, 18:52

Quote:

Originally Posted by kailash_gm

no need to rehot or change uem

u just need to give packing on upp if u give packing

keypad will start work
for more contact me on my yahoo id

What do you mean by "Packing"? Please explain!

saqib_islam · 05-08-2009, 11:27

Any one going to give some real type of solution please guys be serious.

02-13-2008, 16:10	#1 (permalink)
Harisk Freak Poster Join Date: May 2006 Location: Kerala, INDIA Posts: 148 Member: 280222 Status: Offline Thanks Meter: 25	1100 Keypad Problem! Hi I have 1100, key "7" not working. The board is clean and no sign of water damage. Cleaned the pad on the board and also the bubble. Did n't solve the problem. Can any body help? PLEASE! Regards

02-15-2008, 18:28	#3 (permalink)
Harisk Freak Poster Join Date: May 2006 Location: Kerala, INDIA Posts: 148 Member: 280222 Status: Offline Thanks Meter: 25	I have already searched! Hi, I have already searched the forum and did n't get any correct answer. I have also checked the schematics and found that the centre pad of the key goes directly to the UPP OR UEM. So I applied heat on UPP applying and the Key 7 became functional. I did it in night but in the morning I found that the key is again not working. I noted that when I switch on the phone by pressing and holding the power on key for a long period(I keep holding the pwr on key) the digit 7 appears before "Insert sim card" is displayed. More over sometimes 7 appears when i press 4 or * key. In the next night applied flex on UPP and UEM and applied hot air. Now for the last 18 hrs the set was OK and I returned the set to the customer feeling that the set is OK. Let us hope the the best. Thank you for your reply!

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02-15-2008, 04:04	#2 (permalink)
nasirahmed No Life Poster Join Date: Mar 2004 Location: LGE Posts: 3,950 Member: 57760 Status: Offline Sonork: 100.1579298 Thanks Meter: 3,510	Search hardware section. I can remember this problem was discussed there but can't remember the thread/link.

02-16-2008, 13:49	#4 (permalink)
yuval44 Freak Poster Join Date: Feb 2005 Location: israel Age: 48 Posts: 422 Member: 116078 Status: Offline Thanks Meter: 17	you need to change ic

02-16-2008, 17:15	#6 (permalink)
bhogpurmail Registered User Join Date: Oct 2005 Posts: 1,057 Member: 189506 Status: Offline Sonork: 100.1576871 Thanks Meter: 126	friends The 7 no. print goes to cpu............ so, rehot the cpu.................

02-16-2008, 19:37	#7 (permalink)
nasirahmed No Life Poster Join Date: Mar 2004 Location: LGE Posts: 3,950 Member: 57760 Status: Offline Sonork: 100.1579298 Thanks Meter: 3,510	Wish you best luck too.

02-17-2008, 08:00	#8 (permalink)
blackson Insane Poster Join Date: Jun 2005 Age: 47 Posts: 80 Member: 154010 Status: Offline Thanks Meter: 3	the problem is keypad ic it is very small, i have already encoutered these problem and i try to changed the keypad ic and the phone was okey.

02-18-2008, 20:25	#10 (permalink)
kailash_gm No Life Poster Join Date: Dec 2004 Location: india Age: 40 Posts: 642 Member: 101117 Status: Offline Thanks Meter: 466	no need to rehot or change uem u just need to give packing on upp if u give packing keypad will start work for more contact me on my yahoo id

05-08-2009, 11:27	#13 (permalink)
saqib_islam Freak Poster Join Date: Feb 2007 Posts: 435 Member: 446881 Status: Offline Thanks Meter: 707	Any one going to give some real type of solution please guys be serious.