D600 Keypad / Freezing Problem. - GSM-Forum

gsm500 · 01-30-2006, 23:11

Hi Guys,

I have a few D600's that have been liquid damaged. The liquid damage has been repaired but they all have one nagging problem.

If you turn on the phone all the buttons work but if you press the 9 or the # buttons the phone freezes and then resets.

If you remove the back cover the phone works perfectly. I can't find any area where the back cover shorts the board out.

I have 3 units with this problem and I have done software and factory resets, removed Mic and side button flexes but no luck.

If anyone has any ideas, please lets have it.

Cheers

BR
gsm500

FoneFixUk · 01-31-2006, 12:24

Quote:

Originally Posted by gsm500

Hi Guys,
I have a few D600's that have been liquid damaged. The liquid damage has been repaired but they all have one nagging problem.
If you turn on the phone all the buttons work but if you press the 9 or the # buttons the phone freezes and then resets.
If you remove the back cover the phone works perfectly. I can't find any area where the back cover shorts the board out.
I have 3 units with this problem and I have done software and factory resets, removed Mic and side button flexes but no luck.

If anyone has any ideas, please lets have it.
Cheers
BR
gsm500

man i have the same problem on 7 peices but cant find solution. add me to msn and we can try and figure it out

msn = [email protected]

scooter...

wearephones · 02-01-2006, 01:10

hello!
did u guys tried 2 remove varistors.

gsm500 · 02-02-2006, 16:32

Hi Guy's

Looks like I've solved the problem.

I removed the resistor/cap just above the closest LED to 9 and #. Not sure if this was required but did it for good measure.

Then I lifted the Mic and cleaned the PCB and underneath the Mic with a fibre pen and soldered it back.

This sorted out the freezing up problem. Sorry for the lack of Pic's but I haven't got the service manual.

Cheers

BR
gsm500

silveraxe · 02-18-2006, 03:18

When the metal strip on the flexi shorts to the ribbon pins then the phone starts restarts incontrolably, probably putting the green tape back to cover it will solve this.

thanks to FoneFixUk
worked for me !

faysal · 04-04-2006, 22:33

Damn good job man..
u know wot we always get this Shyte phone wiv the broken lcd and u cant c if its freezin or workin fine.. but afta u put lcd on its naggin problem always there for u to keeep pullin ur hair of

hopefully experience of U guys will work for us
thanks guys..

pepik · 04-05-2006, 19:05

I have D530 frozing and reseting after push key "4"
Problem was in varistors near key pads.

Remove all varistors and problem was solved.

Br

tanmay · 04-29-2006, 08:35

mates
1. i solve my keypad freeze problem by cleaning the charging connector
2. u must be put green tape on flex connector not become a short

gud luck

01-30-2006, 23:11	#1 (permalink)
gsm500 Insane Poster Join Date: Oct 2003 Location: Europe Age: 50 Posts: 69 Member: 42007 Status: Offline Thanks Meter: 1	D600 Keypad / Freezing Problem. Hi Guys, I have a few D600's that have been liquid damaged. The liquid damage has been repaired but they all have one nagging problem. If you turn on the phone all the buttons work but if you press the 9 or the # buttons the phone freezes and then resets. If you remove the back cover the phone works perfectly. I can't find any area where the back cover shorts the board out. I have 3 units with this problem and I have done software and factory resets, removed Mic and side button flexes but no luck. If anyone has any ideas, please lets have it. Cheers BR gsm500

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02-01-2006, 01:10	#3 (permalink)
wearephones Freak Poster Join Date: Oct 2003 Location: Bolton Age: 44 Posts: 491 Member: 41976 Status: Offline Thanks Meter: 33	hello! did u guys tried 2 remove varistors.

02-02-2006, 16:32	#4 (permalink)
gsm500 Insane Poster Join Date: Oct 2003 Location: Europe Age: 50 Posts: 69 Member: 42007 Status: Offline Thanks Meter: 1	Hi Guy's Looks like I've solved the problem. I removed the resistor/cap just above the closest LED to 9 and #. Not sure if this was required but did it for good measure. Then I lifted the Mic and cleaned the PCB and underneath the Mic with a fibre pen and soldered it back. This sorted out the freezing up problem. Sorry for the lack of Pic's but I haven't got the service manual. Cheers BR gsm500

02-18-2006, 03:18	#5 (permalink)
silveraxe No Life Poster Join Date: Aug 2005 Age: 45 Posts: 650 Member: 166746 Status: Offline Thanks Meter: 86	When the metal strip on the flexi shorts to the ribbon pins then the phone starts restarts incontrolably, probably putting the green tape back to cover it will solve this. thanks to FoneFixUk worked for me !

04-04-2006, 22:33	#6 (permalink)
faysal Freak Poster Join Date: Oct 2004 Location: UK Posts: 356 Member: 89109 Status: Offline Thanks Meter: 8	Damn good job man.. u know wot we always get this Shyte phone wiv the broken lcd and u cant c if its freezin or workin fine.. but afta u put lcd on its naggin problem always there for u to keeep pullin ur hair of hopefully experience of U guys will work for us thanks guys..

04-05-2006, 19:05	#7 (permalink)
pepik Freak Poster Join Date: Apr 2004 Location: Žilina Age: 44 Posts: 368 Member: 62102 Status: Offline Thanks Meter: 167	I have D530 frozing and reseting after push key "4" Problem was in varistors near key pads. Remove all varistors and problem was solved. Br

04-29-2006, 08:35	#8 (permalink)
tanmay Freak Poster Join Date: Nov 2003 Age: 45 Posts: 158 Member: 43545 Status: Offline Thanks Meter: 7	mates 1. i solve my keypad freeze problem by cleaning the charging connector 2. u must be put green tape on flex connector not become a short gud luck