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


Sony Ericsson Hardware Repair Post here your Hardware Repairing Hints or Problems with SonyEricsson and Sony Phones.

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Old 11-14-2007, 00:55   #1 (permalink)
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K800 keypad problem


hello all.
i have a strange problem with K800 , keys 1 and 6 not work
and when push button 3 phone power off like pushing power on/off button .
i hope any will help




10x advance
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Old 11-14-2007, 23:52   #2 (permalink)
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You should clean the contacts on the keyboard,
Otherwise, the supply of heat to a component,
I leave attachment.
Regards!
Attached Files
File Type: rar K790_K800_Insert sim_keyboard.rar (379.4 KB, 4241 views)
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Old 12-20-2007, 01:42   #3 (permalink)
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Quote:
Originally Posted by emilio View Post
hello all.
i have a strange problem with K800 , keys 1 and 6 not work
and when push button 3 phone power off like pushing power on/off button .
i hope any will help




10x advance
i av exactly same prob!
did u manage to fix this????
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Old 12-20-2007, 03:06   #4 (permalink)
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its 100% keypad ic foult chang keypad cristal ic its worked for me.
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Old 01-01-2008, 08:41   #5 (permalink)
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Quote:
Originally Posted by jazmob View Post
its 100% keypad ic foult chang keypad cristal ic its worked for me.
My br,tell me where r the keypard IC??
Why i cant find it..
Tnx.
Br.,
Robandi.
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Old 02-03-2008, 15:46   #6 (permalink)
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Quote:
Originally Posted by jazmob View Post
its 100% keypad ic foult chang keypad cristal ic its worked for me.

There is no keypad ic on K800i !
SECURITY EFUSE is modulated into MARIKA CPU DB2021

Make Sure before making people searching to lose their time.



BR
Max_B

Last edited by Max_B; 02-03-2008 at 15:51. Reason: to add attachement
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Old 02-03-2008, 18:38   #7 (permalink)
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yes thats right,mailfunction of keypad because cpu problem.
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Old 02-04-2008, 04:54   #8 (permalink)
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Quote:
Originally Posted by Dream Asia View Post
My br,tell me where r the keypard IC??
Why i cant find it..
Tnx.
Br.,
Robandi.

Max_B say correctly for db2020 r no keypad ic all directly go cpu ic......

Best Regard
WinD
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Old 02-05-2008, 04:59   #9 (permalink)
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change new key foil flex, the flex keyboard (one ore more line circuit) had been broken.
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Old 02-18-2008, 05:43   #10 (permalink)
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Hi.
Emilio you have solved this problem ? In my case phone turn off when i press 9 :P
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Old 03-05-2008, 04:55   #11 (permalink)
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change flex

<//>.............................

Last edited by hate_sony; 03-05-2008 at 04:57. Reason: wrong post
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Old 05-06-2008, 16:25   #12 (permalink)
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it´s not the flex i have the same problem
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Old 05-28-2008, 08:22   #13 (permalink)
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good idea! thanks 4 sharring!
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Old 06-02-2010, 18:08   #14 (permalink)
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bro i have same problam plz helpme
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Old 07-14-2010, 14:08   #15 (permalink)
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is k790i and k800i keypad flex are same ?
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