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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Nokia > Nokia Hardware & Hardware Repair

Nokia Hardware & Hardware Repair all what you need for Hardware Repairing for Nokia Phones. Before writing any thread here try to check the Frequently Asked Questions Section.

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Old 11-24-2007, 12:58   #1 (permalink)
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Nokia 1112 Strange Keypad problem..Experts Help me.


Hello Masters,
I got a nokia 1112 in keypad problem. I changed the keypad ic. Problem is that when i press 1 both 1 and 4 number display on screen, when 2 then 2 and 5 and when 3 then 3 and 6. Remaining keypads are ok. After changing the keypads problem is same.
Plzzzzz Help Me.
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Old 11-24-2007, 16:06   #2 (permalink)
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Thumbs up Here is the solution for keypad problem in 1112 even after replacing keypad IC

Apply the flux and reflow the the UPP as shown in the diagram.
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Old 11-24-2007, 16:06   #3 (permalink)
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Thumbs up Here is the solution for keypad problem in 1112 even after replacing keypad IC

Apply the flux and reflow the the UPP as shown in the diagram.
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File Type: jpg keypad problem after replacing keypad ic.jpg (39.2 KB, 279 views)
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Old 11-24-2007, 16:06   #4 (permalink)
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Thumbs up Here is the solution for keypad problem in 1112 even after replacing keypad IC

Apply the flux and reflow the the UPP as shown in the diagram.
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Old 11-24-2007, 17:11   #5 (permalink)
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i reballed the cpu but problem is same.
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Old 11-24-2007, 17:54   #6 (permalink)
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Clean care fully keypad ic point use magnify glass or microscop there some dust making those prob
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Old 11-24-2007, 17:58   #7 (permalink)
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sir keypad ic is ok and also the board,s point. problem is not keypad ic. problem is somthing else.
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Old 11-24-2007, 21:40   #8 (permalink)
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i had same problem but mine was solved by changing keypad ic..............
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Old 02-14-2008, 07:22   #9 (permalink)
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hrsturtuyhr tu65uyahn
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Old 02-14-2008, 07:40   #10 (permalink)
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just try another key pad ic it is problem of key pad ic
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Old 02-14-2008, 08:29   #11 (permalink)
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Quote:
Originally Posted by rk_grover77 View Post
Hello Masters,
I got a nokia 1112 in keypad problem. I changed the keypad ic. Problem is that when i press 1 both 1 and 4 number display on screen, when 2 then 2 and 5 and when 3 then 3 and 6. Remaining keypads are ok. After changing the keypads problem is same.
Plzzzzz Help Me.
hi m8t i face this problem lots of time .my repair method first of all remove the keypad ics and calen the keypad ics area and again resold keypad ic point and install the keypad ics simply method and 100%working solution br
post result soon
Best REGARD
Me Fone
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Old 02-14-2008, 08:32   #12 (permalink)
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I had same problem Just change keypad IC and see.
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Old 02-14-2008, 08:55   #13 (permalink)
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Cool keypad ic problem

Quote:
Originally Posted by rk_grover77 View Post
Hello Masters,
I got a nokia 1112 in keypad problem. I changed the keypad ic. Problem is that when i press 1 both 1 and 4 number display on screen, when 2 then 2 and 5 and when 3 then 3 and 6. Remaining keypads are ok. After changing the keypads problem is same.
Plzzzzz Help Me.
check your board bro maybe there is a short when you replace ic try to remove the ic again then clean and reball your ic and put it back again it will 100 percent sure its not upp problem
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Old 02-14-2008, 15:21   #14 (permalink)
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I had same problem . i solve it by changing CPU + keypad IC
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Old 02-17-2008, 06:17   #15 (permalink)
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see dear it repaired many phones did the same way u talk about that comes cause the keypad IC its leg touch each others so when u press in number 2 for example it does the two functions of no, 2 and five in the same way u have to keep the legs of the crystal away from the other which besides. waiting for ur reply
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