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Tutorial - Fix most Joystick problems - K700, K750 etc |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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The joystick tends to be a bit of a problem on the K series. It's not so much the build quality - it is extremely strong and durable.
The main weakness of the joystick is the poor shielding from dead skin etc that falls into the gap, floats around, and gathers in the base of the joystick. This gums up the joystick, meaning it needs to be pressed HARD to push through the crap and operate the micro switch.
It is impossible to clean with brushes, cotton buds, cmopressed air etc. The crud needs to be broken down and washed away. The simplest way to do this is with electronic contact cleaner. This stuff comes in a spray can, with a long thin tube that fits into the trigger head.
This is what you do:
Go here to learn how to dismantle your cell (that link suits K750/W800).
Once you have the cell in pieces, grab the mainboard and contact cleaner and come back here.
Fit the tube to the triggerhead and spray the contact cleaner deep into the base of the joystick. Blast it in there for a few seconds then let it drain a bit, then repeat several times. Then repeat. And again. Get rid of all that crud messing up your beautiful cell 
You'll feel a bit freaked out using contact cleaner. It runs off the circuitboard like water or very fine oil and you can't help but wonder if it's going to cause damage. But the beauty of contact cleaner is it evaporates without leaving any residue, and so it won't damage the mainboard at all. It also shouldn't set off water damage indicators.
Don't spray it on the lcd though (just incase - my k700 one went a bit funny, but then came good after a day). Keep the lcd away from the spray area.
Give the board a minute or two, then reassemble phone and test joystick. You should find a radical improvement. If still not 100%, try the whole process again, untill you can get no more improvement.
If after that it still isn't working properly, then your up for a new mainboard or to have a new joystick soldering in.
Hope that helps any game peeps out there who wanna fix their joysticks themselves.
It got mine sorted - it's like brand new 
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File System Tweaks for the K750 K750 Tricks
[ This Message was edited by: max_wedge on 2006-07-15 16:05 ] |
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vacheron
Joined: Oct 29, 2005
Posts: 93
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mart89
Joined: Sep 25, 2005
Posts: 137
From: the netherlands
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what size torx screwdriver do i need? |
tranced
Joined: Jan 19, 2006
Posts: > 500
From: Santo Domingo, wonDeRland
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nice 2torial, m8t.
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max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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@mart89, T-7 torx screwdriver
@tranced, thanks, I thought it might give hope to some peeps 
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File System Tweaks for the K750 K750 Tricks
[ This Message was edited by: max_wedge on 2006-07-15 18:10 ] |
IRFCA_WDG-3A
Joined: Nov 24, 2005
Posts: 359
From: Rajdhani Express!!
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Hmmm.great tute mate, but where do we find that eletronic contact cleaner? is it the same as the good ol' VHS/Tape head cleaners?
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max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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You can usually get it at electronic hobby stores. Tape head cleaner is probably not suitable, it's usually isopropyl alcohol. Maybe just a little too harsh. Besides you need the power of the spraypack to really break up the crud.
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mart89
Joined: Sep 25, 2005
Posts: 137
From: the netherlands
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Quote:
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On 2006-07-15 19:04:36, max_wedge wrote:
@mart89, T-7 torx screwdriver
[ This Message was edited by: max_wedge on 2006-07-15 18:10 ]
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Ok thx, do you also know the size of the crosshead screwdriver? |
Sammy_boy
Joined: Mar 31, 2004
Posts: > 500
From: Staffordshire, United Kingdom
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Don't mean to nitpick, but I think you'll find it a T6 Torx you need - that's what I've been using anyway! 
Great tutorial though, I have a K700i I've just fixed that has a slightly unresponsive joystick, I might try that trick on that. Where would I get contact cleaner - or would something like WD-40 do the trick just as well?
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On 2006-07-15 19:04:36, max_wedge wrote:
@mart89, T-7 torx screwdriver
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"All it takes for evil to flourish is for good men to do nothing" - Edmund Burke
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mart89
Joined: Sep 25, 2005
Posts: 137
From: the netherlands
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Just ask for contact cleaner at your local hardware store, most will probably have them.
[ This Message was edited by: mart89 on 2006-07-15 19:57 ] |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Don't use WD-40, it'll gum up the joystick completely (wd-40 doesn't completely evaporate) You really need the contact cleaner stuff, but it's only $10 or so a can and you'll get lot's of use out of it.
Regarding the T6, my T6 fits but it's loose, whereas the T7 fits perfectly, without any play. (both are clearly marked their sizes on the shaft).
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shaliron
Joined: Jan 15, 2006
Posts: > 500
From: Melbourne, Australia
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Great tutorial mate  BTW how did you know all this info? I never knew that the gunk had to be 'broken down'
A wooden spoon is a spoon made from wood. Source: WikipediaWinner of: Best Thread (Huge SE Portfolio) 2007, Best Post (Huge SE Portfolio) 2007, Best Signature 2007, and 2nd Best Nickname 2007. |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Quote:
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On 2006-07-16 05:59:46, shaliron wrote:
Great tutorial mate BTW how did you know all this info? I never knew that the gunk had to be 'broken down'
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dead skin makes up something like 80% of the content of the dust that makes it's way into phones. You can tell by the colour and slight oiliness of the gunk inside well used cells (I've seen a few). It's paler than dust and more sticky. sounds gross I know but that's the root of the problem - the deak skin cells lay a fine coat of oil over everything. this attracts more dead skin cells, until it's so bad it's gumming up the works.
You just can't remove that stuff with a brush or compressed air. You need a strong jet of very mild solvent to break it down and wash it away, a.k.a. contact cleaner.
I knew this from experience but I have also seen studies (believe it or not they exist) into just how many dead cells slough off the body every second. It's a veritable rain of dead skin No wonder your joy scrubbs out so quickly.
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iambasil
Joined: Jul 09, 2005
Posts: 42
From: London
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Where the hell do you get the torx (??) and other tiny cross-head screwdrivers from? |
Sammy_boy
Joined: Mar 31, 2004
Posts: > 500
From: Staffordshire, United Kingdom
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Quote:
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On 2006-07-16 19:37:21, iambasil wrote:
Where the hell do you get the torx (??) and other tiny cross-head screwdrivers from?
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Ebay's your best bet, it's where I usually get things like that from.
"All it takes for evil to flourish is for good men to do nothing" - Edmund Burke
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Posted: 2006-07-14 05:29
jay0726 | 
