K750i, 3, 6, 9, #, backlight u/s - GSM-Forum

justmegt · 10-12-2006, 13:55

K750i, 3, 6, 9, #, backlight u/s

I have tried replacing KP and LCD. Still the same. Must be mainboard problem. May have had water damage.

Is there a stock fault for this?

ZAHID MALIK · 10-13-2006, 02:12

bro there is a very small silver color chip near the joy stick. change that chip. it is hard to chage but 100% tested solution.

wearephones · 10-13-2006, 05:16

hello!
yea if u change the keypad filter which is a square glass ic close to the joystick,u should get your keypad ongoing.make sure u use plenty of flux.

good luck!

debeliamark · 10-13-2006, 07:23

Quote:

Originally Posted by justmegt

K750i, 3, 6, 9, #, backlight u/s

I have tried replacing KP and LCD. Still the same. Must be mainboard problem. May have had water damage.

Is there a stock fault for this?

I have similar problem - but 7 8 and 9 + back arrow and camera shot working sometimes - so all was useless - keypad change, joystick change and keypad filter ( twice ) - there look like PCB lines to CPU are damaged

10-12-2006, 13:55	#1 (permalink)
justmegt No Life Poster Join Date: Jul 2006 Location: UK Posts: 660 Member: 318507 Status: Offline Thanks Meter: 17	K750i, 3, 6, 9, #, backlight u/s K750i, 3, 6, 9, #, backlight u/s I have tried replacing KP and LCD. Still the same. Must be mainboard problem. May have had water damage. Is there a stock fault for this?

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10-13-2006, 02:12	#2 (permalink)
ZAHID MALIK Junior Member Join Date: Jul 2006 Location: UK Posts: 22 Member: 320021 Status: Offline Thanks Meter: 10	bro there is a very small silver color chip near the joy stick. change that chip. it is hard to chage but 100% tested solution.

10-13-2006, 05:16	#3 (permalink)
wearephones Freak Poster Join Date: Oct 2003 Location: Bolton Age: 44 Posts: 491 Member: 41976 Status: Offline Thanks Meter: 33	hello! yea if u change the keypad filter which is a square glass ic close to the joystick,u should get your keypad ongoing.make sure u use plenty of flux. good luck!