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View Full Version : Article Zumo 550 crazy screen: $25 repair (w/ photos)



pretbek
04-17-2010, 12:09 PM
The Zumo 550 GPS seems to have a tendency to have their digitizer go haywire, crazy and bonkers after a few years.
Signs of this are that there seem to be all kinds of phantom screen presses when you don't touch the screen, or it does not react when you do touch the screen (probably because there is a constant phantom screen press occupying the digitizer).

Solution 1: Give Garmin $150 to send you a refurbished Zumo.
Solution 2: Spend $25 on a digitizer from eBay and do it yourself. How-to is shown below.


I bought a Zumo 550 digitizer on eBay for $17 plus shipping. They also sell screens for about $50, you do NOT need that.
I also had to buy a Torx allen wrench ($5 for a pack of four different sizes, including the one I needed) that would be long enough to reach the recessed screws on the back of the Zumo. The Torx inserts that you snap into a screwdriver-style handle are not long enough.
In total I spent about $25.



For safety you could remove the battery, which I did.
Then undo all the torx screws in the back of the Zumo and pop the plastic cap off the top.
After that open it carefully, because the front and back half remain joined by the plastic connection leads of the digitizer and the screen to the PC board.

There is a rubber gasket clamped between the front bezel and the digitizer, It is probably a bit stuck to the digitizer by now, but it is not glued. Carefully take it off and clean it, it is probably dirty.

Undo the 4 phillips head screws that hold the metal screen casing to the front bezel.
Pop the screen/digitizer combo out of its metal casing.
Carefully pull the narrow (1/8" wide) brown plastic contact lead out of its "socket". The wide lead (1" wide) is of the screen, leave that in.

http://img.photobucket.com/albums/v237/Pretbek/Zumo%20digitizer%20repair/DSCN0105m.jpg





The digitizer is glued to the screen along the perimeter. Cut it loose with a slim, sharp knife like a razor blade. Or a kitchen knife. :rolleyes:

http://img.photobucket.com/albums/v237/Pretbek/Zumo%20digitizer%20repair/IMG_3619m.jpg





After cleaning the glue residue off of the screen with something like Goo Gone, you can put the new digitizer on the screen.

The digitizer comes with a glue line along the perimeter and a protective backer on it.
Center the digitizer on the screen, make sure the contact lead is in the bottom right corner, then have the glue make contact.
Press along the perimeter to firmly adhere the digitizer to the screen.

http://img.photobucket.com/albums/v237/Pretbek/Zumo%20digitizer%20repair/IMG_3622m.jpg





To put the contact lead back in its socket, flip the brown tab up, then slide the lead in the slot and lock the brown tab down again.

http://img.photobucket.com/albums/v237/Pretbek/Zumo%20digitizer%20repair/IMG_3623mc.jpg





Turn the Zumo on and try it out, it should work fine and dandy now.

Now turn it off again, reassemble and go ride!

uptoblackwood
04-17-2010, 12:48 PM
Wow...thanks. I'm going to purchase a new digitizer and screen (just in case) and have them in my spare parts kit. Great goin'...

RaYzerman
04-17-2010, 07:02 PM
Great article. Mine is starting to act up sporadically, and hard resets and recal of the touch screen isn't working..... I better get me some parts.
Thanks, pretbek!!!

PopJack
04-18-2010, 08:55 AM
No joke: My Zumo quit ten minutes before arriving home from a ride last night. I was still fruitlessly trying things when I ran across this article. I never imagined you could do this THANKS!

RaYzerman
04-21-2010, 08:57 AM
A colleague of mine also suggested to look for a command that executes from a particular spot on the screen, particularly along the bottom. The resistive digitizer recognizes the x-y position based on the resistance of the area being pressed. He is suggesting a good cleaning to ensure there isn't dirt or grit pressing on the screen.

Mine is acting up, and I have ordered a digitizer, however, I am going to try a disassembly/cleaning here very soon. Will advise.

TinyL
04-21-2010, 09:13 AM
Wow...thanks. I'm going to purchase a new digitizer and screen (just in case) and have them in my spare parts kit. Great goin'...


Great step by step instructions and photo's!

Mine is not acting up yet either, but I think you have a good idea.

RaYzerman
04-21-2010, 07:05 PM
Well, I took it apart and cleaned around the digitizer and gasket with Q-tips. Did not see any real grit, but there was more of an accumulation of dust around the bottom edge. Quick test on a short ride gives me hope that I just fixed it!! Fingers crossed.

Note added - on mine the 8 screws take a 1.5mm hex key, not torx.

Mellow
04-21-2010, 07:09 PM
Well, I took it apart and cleaned around the digitizer and gasket with Q-tips. Did not see any real grit, but there was more of an accumulation of dust around the bottom edge. Quick test on a short ride gives me hope that I just fixed it!! Fingers crossed.

I wonder if a blast of canned air would also help.

RaYzerman
04-21-2010, 07:15 PM
I wonder if a blast of canned air would also help.
Joe, it might help but only for a bit of loose dirt. This "dust" I found was obviously wet at one time and nothing would take it off except a good wipe. I used lens cleaner (isopropanol/water/soap) and it does need a bit of a solvent to get it off. For all it takes, I would recommend taking it apart (20 minutes and you're done).

Mellow
04-21-2010, 07:20 PM
Joe, it might help but only for a bit of loose dirt. This "dust" I found was obviously wet at one time and nothing would take it off except a good wipe. I used lens cleaner (isopropanol/water/soap) and it does need a bit of a solvent to get it off. For all it takes, I would recommend taking it apart (20 minutes and you're done).

Good to know, thanks!

Scooter
04-21-2010, 07:32 PM
Dennis, great article! :bow1:

What is the actual Torx bit size that you used to remove the screw?

PopJack
04-21-2010, 08:35 PM
It is a T-6. I took my unit to sears and tried them till I found it.

Gene
04-21-2010, 09:49 PM
Were was this 3 weeks ago when I traded mine for a refurb unit and $150 ???

Strawman
04-21-2010, 10:04 PM
wow!
i'm flabbergasted. I spent the big bucks on mine. I'll follow your lead and do it my self next time. Thanks!

AzDesertRider
04-21-2010, 10:36 PM
Very KEWL!! I too spent the "big bucks" last failure. Will dang sure try this one next go-round

:bow1:Pretbek

forgitaboutut
04-21-2010, 10:40 PM
:bow1: This guy deserves an AWARD!!!:hat1::1st:
How about a new "Fix It" award!:toot1:

RaYzerman
04-22-2010, 08:53 AM
It is a T-6. I took my unit to sears and tried them till I found it.
Mine is a 2007 model, it has 1.5 mm hex... later ones may have changed?

PopJack
05-05-2010, 08:18 PM
Follow up from PopJack!

My unit started responding to a phantom push that rendered it completely useless.

OK, followed the instructions and ordered the digitizer from ebay. Before replacing the digitizer, I took everything apart and cleaned the accumulation of materials around the edges. (thinking I wouldn't actually have to replace the thing). I got no improvement- still broke.

Came apart as advertised- but my old digitizer has more cracks than yours.

The new digitizer I purchased did not have a glue strip or protective coating on it. So, I just reused the old glue. It seemed really sticky and besides, I figured the four little screws would hold it. (I am still rationalizing this and would appreciate everyone just giving me a "pass" on it.)

Got it together and it works great. Thanks for the great and timely article! :bow1:

Landon
05-05-2010, 08:23 PM
What seller are you guys buying from? Seems they are all overseas and would rather use someone that you already tested out for me!

Strawman
05-05-2010, 08:59 PM
Where on e-bay did you find the digitizer?

pretbek
05-05-2010, 09:02 PM
What seller are you guys buying from? Seems they are all overseas and would rather use someone that you already tested out for me!


I bought from user "mingxing200808", here is one of the digitizers on eBay now (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250617976973).

And a screenshot:
60540

Mellow
05-17-2010, 10:40 AM
oddly enough, my 4-5 year old zumo just started acting crazy this weekend.... it would start pushing buttons I didn't intend to be pushed... I was afraid it was about to die.

So, I'll give this a shot.. also, getting static in my left ear so I'll clean all the contacts but the cradle may be going out again..

RaYzerman
05-17-2010, 11:05 AM
oddly enough, my 4-5 year old zumo just started acting crazy this weekend.... it would start pushing buttons I didn't intend to be pushed... I was afraid it was about to die.

So, I'll give this a shot.. also, getting static in my left ear so I'll clean all the contacts but the cradle may be going out again..

My screen issued are almost cured after I took it a part and cleaned it all around the gasket area and along the bottom. I had an issue once or twice since, but seemed to be OK after a reboot. Spare digitizer now in stock for when I really need it, although I probably should just change it.

Contact cleaner and be sure to work the pins up and down.....

Mellow
05-17-2010, 11:06 AM
My screen issued are almost cured after I took it a part and cleaned it all around the gasket area and along the bottom. I had an issue once or twice since, but seemed to be OK after a reboot. Spare digitizer now in stock for when I really need it, although I probably should just change it.

Contact cleaner and be sure to work the pins up and down.....

I will try that first, thanks!

Landon
06-01-2010, 07:02 AM
Should have bought it a couple weeks ago since they went up 11 bucks! Oh well, still cheaper than sending the unit into Garmin.

EASt
06-01-2010, 07:10 AM
Thanks for this article! Great work.

I wish I would've known about this $300 ago.... ;-)

RaYzerman
06-09-2010, 12:20 PM
I have been trying to stretch out the digitizer life, having issues and knowing it is going to fail at some point. It crapped out the other day in the heat and damp at OHSTOC, working poorly. The performance has been sluggish and frequent screen lockups with a "button" stuck on. The cleaning I did a while ago bought me quite a while, but............

Today, I replaced it with the new digitizer. The only change I would make to the procedure is to remove the large ribbon and completely free up the screen for working on a solid surface. Other than that, make sure the gasket is clean on both sides. It was easy peasy really, and I did a preventative maintenance cleaning/lube with contact cleaner on the battery and cradle. It took me a bit more than a half hour, but I easily could have done it in 20 minutes or less.

Fired up the Zumo and it was like a new machine. Screen was crisper and reacted to touches much more quickly and accurately. I didn't recalibrate the screen, it works like new. Wow. Should have done it sooner.

Thanks again, Dennis for the article.... just saved me $150. Going to order another digitizer so I can put it away and wonder where the heck it is two or three years from now........

pretbek
06-09-2010, 03:23 PM
Thanks again, Dennis for the article.... just saved me $150.

Hey, you are welcome.

Now if everyone will please send 50% of what they saved to my Paypal account...

:crackup

Mellow
06-09-2010, 03:27 PM
Hey, you are welcome.

Now if everyone will please send 50% of what they saved to my Paypal account...

:crackup

That's just wrong...

Remember 50% of that goes to the site for providing the free advertising.. :nanner1:

Landon
06-20-2010, 03:18 PM
Thanks! Just got mine switched on the 450. Works like new now and much cheaper than sending it back to garmin or getting a new GPS. Think I will pick up some screen protectors though.

RaYzerman
06-21-2010, 05:48 PM
Thanks! Just got mine switched on the 450. Works like new now and much cheaper than sending it back to garmin or getting a new GPS. Think I will pick up some screen protectors though.

I've never used a screen protector in 3 years, I just don't poke sharp sticks at it. I have cleaned up scuff marks with Novus #2. Screen protector just adds another layer you have to push through, I had tried one, didn't like it. Just me. YMMV.

Lost Dutchman
07-01-2010, 04:58 PM
Thanks! Just got mine switched on the 450. Works like new now and much cheaper than sending it back to garmin or getting a new GPS. Think I will pick up some screen protectors though.

Landon,
Did you use the same 550 digitizer on your 450?

I am finding that the new one (550) is slightly smaller than the old one (450)

RaYzerman
08-08-2010, 09:17 PM
Landon,
Did you use the same 550 digitizer on your 450?

I am finding that the new one (550) is slightly smaller than the old one (450)

Mine was a touch smaller, but not much. But, I fear they have shrunk yet again.... a buddy and I replaced his digitizer yesterday, and we noticed the glass is now significantly smaller (than mine or yours probably). It barely makes contact all around the raised portion of the rubber seal on the front bezel, and we don't know if it will be waterproof. Of course, we had no choice but to install it, carefully placed, with emphasis on sealing at the bottom.

I have been inquiring with a vendor in Hong Kong, and he says yes, original size is no longer available (from anybody), and all the new ones are smaller. IMHO, undersize to the point of questionable waterproof seal. He informs me that I should buy the whole assembly of LCD screen and digitizer........ I am still in contact with him to see if he will give me actual measurements.

Here is what we found.... OEM digitizer 3.125" x 2.55" (79.4 x 64.8 mm). The latest ones from Hong Kong are 3.05" x 2.49" (77.5 x 63.2 mm). I would not recommend ordering one at this point.

I will update as soon as I get answers from the vendors I am in touch with.

RaYzerman
08-11-2010, 08:24 PM
Well, it appears they were once only slightly smaller than OEM, and now they are what I reported earlier. No stock left of the previous version from any supplier. So, I'm just going to make noise with all the ebay (http://www.ebay.com)suppliers to check, and inform them that sealing may be compromised due to undersized glass. You should too and maybe they'll start making them the right size. I'm sure they never considered this was a critical feature.

THE GOOD NEWS, apparently is that the LCD screen & digitizer ASSEMBLIES have the OEM size glass, and I had one guy physically measure to be sure..... So, I ordered one and it should be in my hands in two weeks..... will let you know.

Next question, what happens when that supply runs out and they make new ones?

Scooter
08-23-2010, 02:39 PM
...a buddy and I replaced his digitizer yesterday, and we noticed the glass is now significantly smaller (than mine or yours probably). It barely makes contact all around the raised portion of the rubber seal on the front bezel, and we don't know if it will be waterproof. Of course, we had no choice but to install it, carefully placed, with emphasis on sealing at the bottom.


Did the Zumo function OK even though the digitizer is slightly smaller?




THE GOOD NEWS, apparently is that the LCD screen & digitizer ASSEMBLIES have the OEM size glass, and I had one guy physically measure to be sure..... So, I ordered one and it should be in my hands in two weeks..... will let you know.


Who did you order this from?

nm6r
09-02-2010, 08:45 PM
Thanks to the OP for the article. :cool:

I completed the process yesterday. The price is now $30.68 delivered from Hong Kong. It took 10 calendar days to receive the part from the day it was ordered. It is slightly smaller than the original.

I used it today in my truck. It worked flawlessly. It seems a bit more sensitive now. Is it more sensitive than original? Not sure. The old digitizer has aged over the last few years and was obviously in bad shape.

Is it still water proof with the smaller dimensioned digitizer? Not sure. Tomorrow I plan on placing the zumo on a table horizontally and pour some water on the face. Then dry it off and open it to see if it's still water tight.


Lowe's was no help in finding the right size torx tool. Home Depot had a very nice kit for $5.97 that came with 8 sizes of the small torx that worked perfect.



Did the Zumo function OK even though the digitizer is slightly smaller?


The zumo functions perfectly even though the new digitizer is slightly smaller.




Who did you order this from?


I purchased mine on ebay (http://www.ebay.com)from goodsupply0889.



Ray

Papa
09-02-2010, 10:25 PM
Brilliant! Can you fix my Magellan? I miss it.

RaYzerman
09-02-2010, 11:31 PM
Did the Zumo function OK even though the digitizer is slightly smaller?

There is no concern about function, just if it's a waterproof seal to the front cover.


Who did you order this from?

There is no concern about function, just if it's a waterproof seal to the front cover. The digitizer only is definitely a bit small. The LCD & digitzer assembly is what I bought this time.

Got mine from goodsupply too..... mine is still in the mail, usually takes up to 2 weeks........ I want to see what the dimensions are.

RaYzerman
09-03-2010, 07:49 PM
My digitizer & LCD assembly arrived today. The digitizer is the OEM size, so no worries. But, if you order one, ask the seller to measure anyway just to be sure. Measurements are in a previous post above.

ScubaDave
09-16-2010, 05:13 AM
My digitizer & LCD assembly arrived today. The digitizer is the OEM size, so no worries. But, if you order one, ask the seller to measure anyway just to be sure. Measurements are in a previous post above.

Ray, where did you order from?

RaYzerman
09-16-2010, 07:17 AM
I got mine on ebay (http://www.ebay.com)from goodsupply and mingxing in the past... here is a current listing for one in the right size http://cgi.ebay.com/LCD-Touch-Screen-Digitizer-GARMIN-ZUMO-550-79mmx-64-5mm-/190442053480?pt=PDA_Accessories&hash=item2c573b1f68

uptoblackwood
12-14-2010, 11:15 AM
I recently ordered a new digitizer for my 550. It did not require the slicing off with a knife procedure. The digitizer was mounted on the aluminum fitting that fits into the housing for the screen. I simply used a small flat bladed screwdriver to ease out the old digitizer, aluminum fitting and all. (one fitting side fits into the opposite fitting piece and has small bumps that hold the two parts together) A backing lens and shims will want to fall out when you divide the two halves. Take care to not get the backing screen w/shims out of order. They are keyed in the sandwich between LCD and digitizer. Easy to see....in good light. I was messing with this in a bad location and got the shims/lens in a bit off. When I put it all back together, the pressure against the digitizer caused the screen to not respond properly. Easy to fix in good light. My several year old...well over 100,000 miles of hard use Zumo 550 is working at 100% again.
One suggestion...when putting things back together, be sure to clean the rubber gasket carefully. I used a very, very small amount of silicone grease (from my dive kit) to just make the gasket shine. NO more...if you use too much grease...the gasket will leak.
Thanks pretbek and RaYzerman for the links and information. I even ordered a second backup screen for the future. Easy and very cheap fix!!

Shuey
12-14-2010, 01:33 PM
Since yours was exactly the correct size, where did you get it from?
Shuey


I recently ordered a new digitizer for my 550. It did not require the slicing off with a knife procedure. The digitizer was mounted on the aluminum fitting that fits into the housing for the screen. I simply used a small flat bladed screwdriver to ease out the old digitizer, aluminum fitting and all. (one fitting side fits into the opposite fitting piece and has small bumps that hold the two parts together) A backing lens and shims will want to fall out when you divide the two halves. Take care to not get the backing screen w/shims out of order. They are keyed in the sandwich between LCD and digitizer. Easy to see....in good light. I was messing with this in a bad location and got the shims/lens in a bit off. When I put it all back together, the pressure against the digitizer caused the screen to not respond properly. Easy to fix in good light. My several year old...well over 100,000 miles of hard use Zumo 550 is working at 100% again.
One suggestion...when putting things back together, be sure to clean the rubber gasket carefully. I used a very, very small amount of silicone grease (from my dive kit) to just make the gasket shine. NO more...if you use too much grease...the gasket will leak.
Thanks pretbek and RaYzerman for the links and information. I even ordered a second backup screen for the future. Easy and very cheap fix!!

uptoblackwood
12-14-2010, 01:45 PM
Shuey, I used the link given by RaYzerman. It had expired...but others were available just like that link. The item I purchased was in the $25 range. Just be sure it's the 79 mm by size....I'll find the link. LCD Touch Screen Digitizer GARMIN ZUMO 550 79mmx 64.5mm The image in the eBay link shows the whole framework clearly.

The current purchase link here:
http://cgi.ebay.com/LCD-Touch-Screen-Digitizer-GARMIN-ZUMO-550-79mmx-64-5mm_W0QQitemZ270673021189QQcategoryZ20336QQcmdZVie wItemQQ_trksidZp4340.m263QQ_trkparmsZalgo%3DSIC%26 its%3DI%252BC%26itu%3DUCI%252BIA%252BUA%252BFICS%2 52BUFI%26otn%3D10%26pmod%3D190442053480%26ps%3D63% 26clkid%3D5649413273924592646

It seems to change almost daily...but the same LCD/Screen always seem available. They say 10/25 days to recieve the product....but I got mine in four days from Hong Kong.

RaYzerman
12-14-2010, 03:02 PM
The easy way to do it is buy the digitizer and LCD assembly, no muss no fuss, just install it. They seem to come in the right size 79x65. Digitizers only are a touch cheaper, and if they don't specify the size, best to ask. I think some are posting dimensions now because of all the noise we made about the undersized ones, which hopefully have disappeared.

Shuey
12-14-2010, 04:50 PM
Shuey, I used the link given by RaYzerman. It had expired...but others were available just like that link. The item I purchased was in the $25 range. Just be sure it's the 79 mm by size....I'll find the link. LCD Touch Screen Digitizer GARMIN ZUMO 550 79mmx 64.5mm The image in the eBay link shows the whole framework clearly.

The current purchase link here:
http://cgi.ebay.com/LCD-Touch-Screen-Digitizer-GARMIN-ZUMO-550-79mmx-64-5mm_W0QQitemZ270673021189QQcategoryZ20336QQcmdZVie wItemQQ_trksidZp4340.m263QQ_trkparmsZalgo%3DSIC%26 its%3DI%252BC%26itu%3DUCI%252BIA%252BUA%252BFICS%2 52BUFI%26otn%3D10%26pmod%3D190442053480%26ps%3D63% 26clkid%3D5649413273924592646

It seems to change almost daily...but the same LCD/Screen always seem available. They say 10/25 days to recieve the product....but I got mine in four days from Hong Kong.

Thanks, just ordered 2. $22.99 each plus shipping, total = $62.97.
That's a lot cheaper than one Garmin refurb swap!

Thanks to Ray also for getting us all going on this.
Shuey

katapult
12-23-2010, 05:46 PM
I ran into the same situation with my Zumo at the end of September this year.
I did all the research on this board (thanks guys AGAIN) and ended up ordering 2 digitizers from ebay. I verified the dimensions and here's a clip of the correspondence and the ebay (http://www.ebay.com)user I purchased it from
-------
Dear Customer:
yes, we determine the late-inch is 79.3mm x 64.77mm.
This item costs are very high, we can only make transportation costs.
You can click to buy. Transport costs we can not supply you high discount.
If you are willing to directly pay to my paypal account, 2pcs?40USD we can supply to you.
My paypal account address is: mingxing898@163.com
Please specify details of payment items that the recipient name and parcel number.

Thank you

- mingxing200808
---------
I received the two digitizers in the mail in a few days but digitizers had an aluminum backing glued to them. Here's a picture.
albumid=2322&pictureid=21938

I tried to bend the aluminum to make it fit over the screen and that didn't work. I then tried to cut the aluminum in an attempt to fit it over the LCD. In doing so I cracked one of the digitizers - as you can see: albumid=2322&pictureid=21939

Finally. I used a heat gun (my wife's blow-dryer) and heated up the digitizer. Once the glue softened up I was easily able to pry he digitizer off.

Once i freed the digitizer, I followed the instruction and re-assembly was a snap. The instructions on this site were spot on.

I'm sharing my experience so if anyone gets digitizers with backing, here's the no-brainer way to get them off. Hopefully it'll save someone destroying a new digitizer!

albumid=2322&pictureid=21940

Once again, thank you all for contributing to this thread and helping us find a low cost solution to a very common problem.

If anyone has any questions on the process, feel free to send me a PM and I'll talk you through it.

Merry Christmas everyone.

Slydynbye
01-31-2011, 01:02 PM
Just a little research to add, the screen being sold is:

Casio 3.5-inch digital LCD screen models: A68-035BA402D
or
Casio 3.5-inch LCD touch screen models: 7I35CWX540459

Might come in handy..

NoBull
03-06-2011, 08:26 AM
My screen went haywire last night, I left it on the bike in the garage during a extremely cold stretch. Possible cause? Anyway I ordered a screen and digitizer from Goodsupply, crossing my fingers. Thanks so much for the write up and info. Hopefully I can get it all working for Moonshine.

BakerBoy
03-06-2011, 08:29 AM
My screen went haywire last night, I left it on the bike in the garage during a extremely cold stretch. Possible cause? Anyway I ordered a screen and digitizer from Goodsupply, crossing my fingers. Thanks so much for the write up and info. Hopefully I can get it all working for Moonshine.

Bummer Nick...its those midnight tagging runs. I keep wondering when my 550 is gonna brick. Hope this new screen works for you.

katapult
03-06-2011, 10:17 AM
My screen went haywire last night, I left it on the bike in the garage during a extremely cold stretch. Possible cause? Anyway I ordered a screen and digitizer from Goodsupply, crossing my fingers. Thanks so much for the write up and info. Hopefully I can get it all working for Moonshine.

If you have any questions or are having trouble with the screen swap do not hesitate to ask.
Cheers,
Steven

Da Ace
03-06-2011, 01:12 PM
Hi Guys
My Zumo 500 or 550(?) not sure witch, started the "ghost pushing the button" thing a short while ago.
It's actually "bleeding" now...
I have been to the local Garmin supplier here in South Africa and they quoted me a very "interesting" price on a service exchange for a Zumo 660.
I am not sure that I like the 660, but now you guys have saved the day.
I want to get hold of a digitizer and fit it to see first.
Just not to sure about how to get one here in SA...

Thanks

NoBull
03-20-2011, 10:10 AM
Ok I received the parts Friday, decided to give her a go this morning. Only one thing that wasnt covered above, or if it was I missed it. The first post shows how to remove the smaller wire strap(?) but not the wider one. It has a brown strap that holds it very much the same as the small one. Otherwise it is a very straight forward swap. I needed a magnifying glass to see and good lighting. It took 30 minutes which included gathering my tools and re reading the first post here.

Thanks so much for everything, I would never have attempted this before. Best thing is I have my Zumo back...

Da Ace
03-23-2011, 01:04 AM
As I said ....
Just not sure how to get one here to South Africa...
No mailing to South Africa
Think I need to find him directly...?
How???

Rich R
03-28-2011, 01:48 PM
I have just completed the install of the screen and digitizer combo.
Thanks!!!! Works like new again.
Rich

Da Ace
04-15-2011, 12:29 AM
Well I got hold of the guy on e-bay and sent my money and he said that they don't send to South Africa normally so it would take about 40~60days...
20 days later my Garmin screen arrived.
I assembled it and it is fixed and on the bike and I am smiling big time!!!
And at a fraction of the price of a service exchange with the new 660 unit (which I don't like).
I would like to thank pretbek for the thread. Thank you.

pretbek
04-15-2011, 07:16 AM
Hey you are welcome. Glad to be of service.

nhdiesel
05-22-2011, 07:16 PM
Has anyone done this to a 2720? My screen started doing the ghost button push thing a couple rides ago, and its getting really bad now. The rest of the GPS is good, this is it's only issue.

I want to upgrade to a 665, but I don't have the funds yet, and I would still like to fix this one to use as a 2nd unit on long trips.

Jim

Ken H
06-05-2011, 02:05 PM
The digitizer comes with a glue line along the perimeter and a protective backer on it.


The new digitizer I purchased did not have a glue strip or protective coating on it. So, I just reused the old glue. It seemed really sticky and besides, I figured the four little screws would hold it. (I am still rationalizing this and would appreciate everyone just giving me a "pass" on it.)

I am in the middle of this procedure. The new digitizer I bought doesn't have glue on it either. There is not enough glue residue to 'reuse' the old glue. Anybody know if it is necessary to use glue with the new one? If so, what would a recommended adhesive be?

pretbek
06-06-2011, 11:03 AM
I am in the middle of this procedure. The new digitizer I bought doesn't have glue on it either. There is not enough glue residue to 'reuse' the old glue. Anybody know if it is necessary to use glue with the new one? If so, what would a recommended adhesive be?

I would use a glue that does not harden or is somewhat easy to take off later. The sticky gooey stuff that is used to keep temporary labels on boxes would be great, but I have no idea what kind of glue that is.
Perhaps you could use a thin double-sided tape, like double-sided scotch tape. "Goop" might work too, but that is really thick and unwieldy to put on in such a narrow area.

You won't need adhesive on the full perimeter; it is just to make sure the digitizer does not move relative to the screen. Since the digitizer and screen are clamped together with those four screws, a thin strip of friction material like rubber might even be enough.

Sorry to sound so wishy-washy, but my idea of the situation does not reach much futher than "something to hold it in place, but not for eternity". :o:

Ken H
06-10-2011, 12:57 PM
The new digitizer I bought doesn't have glue on it either. There is not enough glue residue to 'reuse' the old glue. Anybody know if it is necessary to use glue with the new one? If so, what would a recommended adhesive be?

Just a little follow up to the digitizer replacement on my Zumo. When I began removing the 'glue' residue from the edge of the framework for the screen after removing the original digitizer it actually came up in a very thin strip about 1/16" wide. I actually believe it was just a very fine piece of two sided adhesive, kind of like a tape strip. After seeing this I decided to install the new digitizer on my Zumo with two sided tape. I just applied it to the edges of the frame for the screen and then trimmed off the excess with a razor blade. Just thought I would post this up in case anyone encountered the same issue I did with a replacement digitizer that did not have any adhesive on it or if there was not enough adhesive residue left on the frame for the screen to reuse. I guess if I had it do over again I would place the two sided tape on the edge of the replacement digitizer since it can be handled more freely and then trim off the excess. You would just need to make sure you dont position the tape so that it would be on the viewable part of the screen after reassembly. You gotta be careful applying the tape to the screen the way I did it because I can see where you might inadvertently tug on the wide ribbon cable attached to the screen that does not detach for this procedure.

Jefro
06-19-2011, 04:12 PM
I just changed out my touch screen digitizer on my 4 year old Zumo 550.
I was starting to get all the crazy phantom presses, and generally was unable to get to any pages I needed.

On ebay, I ordered from Goodsupply0889 a new 79 X 64.5 digitizer for $29, including shipping. I was pleasantly surprised to receive it in only 7 days to SoCalif. And he included the adhesive tape with it. Good source!

The Zumo came apart easily with a 1.5mm hex, and unlatching the 2 contact leads made the job smoother.
The installation went easily, but you should only razor blade off the old digitizer and glue that sits on the black frame. Do not disassemble the black frame that mates to the steel frame that encases the actual LCD screen. I did take everything apart, but discovered it was difficult to reassemble properly, and was unnecessary.

I very lightly greased the thin rubber gasket and put everything back together carefully in good light.
After booting the Zumo into the calibration mode, I discovered the screen to be nicely sensitive, unlike my original screen.
Now it works better than new, and I am a happy rider once again.
Jefro.

Ruspcola
07-13-2011, 05:01 PM
I ordered mine and had it within a week and just changed it out; took about 1/2 hour and everything worked perfectly as described. I going to order another one and keep it for a spare. I have two 550 and both (one sent twice) have been sent back to garmin for the same issue......$450 in repair. So glad to find this....THANKS!

janfmiller
07-23-2011, 07:51 PM
thanks
What SIZE touchscreen is needed, seems there are several variants available????
Jan..

RaYzerman
07-23-2011, 08:21 PM
79 x 64.5 is correct for a 550. If in doubt, order the whole LCD assembly which has it already done for you. A bit extra, but less work.

redst05
05-21-2012, 10:27 PM
My screen on my Zumo just went nuts this weekend! I just ordered one these LCD screens with a digitizer off EBay. Now to see if I can replace the unit when it comes in. Had to order it from china, nothing here in the states!

970mike
05-21-2012, 10:50 PM
My screen on my Zumo just went nuts this weekend! I just ordered one these LCD screens with a digitizer off EBay. Now to see if I can replace the unit when it comes in. Had to order it from china, nothing here in the states!

I ordered the same thing from China and have not had the time to install it yet. Fast shipping from there from the company on Ebay.

RaYzerman
05-22-2012, 08:40 AM
I agree the LCD plus digitizer assembly is the less trouble way to go. No fooling around trying to change the digitizer, almost plug and play. I bought an extra one for a spare.

sennister
05-22-2012, 08:44 AM
Hmm, maybe I should order a spare. That way mine will never fail.

squid101
08-09-2013, 05:44 PM
Just replaced mine. Worked great, thank you for showing us this.