Zumo touch screen and digitizer replacement

Discussion in 'Mapping & Navigation' started by FrankS, Nov 28, 2009.

  1. KYStarRider

    KYStarRider n00b

    Joined:
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    Thanks FrankS :bowand all others involved in this great discussion. After reading through the entire discussion (twice) I decided to repair my Zumo 550 myself after going through the Garmin $150.00 replacement already and having it do the same thing only a year later I figured why not, they can't be that much more different than cell phones and laptops and I've repaired literally hundreds of em' being a 25yr. IT guy.

    So I ordered the screen/digitizer from Goodsupply 0889 (it was an exact fit) and two digitizers (also exact fit) figuring to repair my old display thereby leaving me with a repaired GPS and additional replacement display/digitizer assy. and a spare digitizer to rotate out. These units, as you all know fail frequently.

    Everything went off nearly without a hitch. The only problem that I ran into was that when I removed the defective display/digitizer assy., I noticed a lot of crud along the bottom of the main screen gasket so I removed it and took a quick glance at it and it appeared to be identical on both sides. Appearances can be very misleading during a quick glance. I cleaned the gasket using warm water only and gently dried it and to be sure it was thoroughly dried I placed in front of a small fan for an hour or so. I then re-assembled and when I turned the unit on it appeared to be functioning properly until I got to the password entry screen and I noticed that the number 1 on the screen was highlighted (beige colored) and it was stuck on that and I could not proceed any further.

    So I started back tracking rechecking all my connections everything looked good so I re-assembled ...same problem. I disassembled and disconnected, reconnecting again making certain that all connections were correctly inserted and locked down. I only put two screws in the unit just to hold it all together in case it wasn't solved...Good thing because it was the same story. Back to dis-assembly knowing full well that I had to be missing something. Removed the screen/digitizer and this time took a very close look using a magnifying glass in conjunction with a set of 2X reading glasses and that's when I noticed that the two sides of the gasket are not identical. I noted it's orientation prior to removal for re-inspection so I flipped it over. The lower portion of the gasket is critical and the flat side must be oriented in such a way that it contacts the screen surface. I reassembled and rechecked, problem solved. :roflFor proof (being the sick minded individual that I am) I disassembled the unit again, flipped the gasket back over , reassembled, and re-checked....the problem returned. Flipped it back over and problem went away again so I am certain that it does in fact make a difference!!! SO I hope that if anyone else that may possibly run into the same pitfall will read this post and save themselves a lot of hair pulling and possibly avoid reaching their personal breaking point and dumping their unit unnecessarily. :kboom

    My Zumo is now a very happy camper and I've now got a ready replacement for the next time it goes bizerk on a long road trip.

    Final notes, I used an exacto knife with a curved blade to separate the old digitizer from the display and instead of laying it flat I stood it on it's edge which allowed me to get a better visual on where to make the cut. It took about 20 seconds to separate the two with no breakage and even left the original seal intact.

    Above all else Take your time, patience is a virtue when working with delicate electronic assemblies. Don't get in a hurry.

    Ride On Bros, Hope to see ya on the road sometime.:ricky
  2. Reaver

    Reaver Outta Here

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    Hey KYStarRider, try not to use up your subscription's character limit on your first post! :lol3

    Welcome. You had me thinking there but mine worked out of the gate. I didn't disconnect the LCD or remove the gasket I believe. That was a month ago but may as well have been years as I have limited RAM.

    I bet you were "on the clock" while fixin your Zumo. Most would just accept that it worked the second time. :1drink
  3. KYStarRider

    KYStarRider n00b

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    Feb 15, 2013
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    Hey Reaver,
    Sorry 'bout the character usage,:uhoh but I'm "hard wired" to be thorough.

    The only reason I even messed with the gasket in the first place wuz because of the crud...(leaving it could have possibly created an entry point for moisture). It took me a while to get the problem nailed down and was just tryin' to help the next poor soul that may venture down that path.:baldy

    Now for the sickest part....I was in fact "Off the clock" at home!!!!
    Winter Sucks!!! I need some ride'n time:slurp
    C-Ya
  4. FakeName

    FakeName Wile E Coyote SuperGenius

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    Jan 1, 2007
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    Location:
    San Diego
    Just replaced mine- thanks to all who posted.
  5. Captdan

    Captdan Been here awhile

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    Jan 5, 2012
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    Yep, my 550 just started acting up. I bought the new screen and with the guidance here replaced it. I did have to connect the wire strap three times to get it right, once nothing when I booted it up,next time just light no graphics, the third time all worked fine. I saved $500 ! Thanks!
  6. watchmen

    watchmen Been here awhile

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    Jun 4, 2008
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    Santa Barbara, CA
    Thanks for the great guide. Was easily the easiest digitizer replacement I have done, much easier than a phone. I am definitely not going to leave my 550 on the bike all the time like I used to.
  7. LC8rider

    LC8rider Been here awhile

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    Feb 3, 2006
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    Preston, UK
    Changed my 550 digitizer last night. Thanks for post. I bought 2 digitizers from china just in case one of my friends 550 failed. Turned out I needed the second spare myself. The first digitizer would not calibrate. The dot went round and round for ages and sometimes moved by itself without being pressed. The second one calibrated very quickly. Fast, precise screen operation at last!! Noticed a rip starting on the on/off rubber. I can seal this off and just use the 12v to power up and not the battery.
  8. Drif10

    Drif10 Accredited Jackass

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    Just did mine, had a similar issue. Figured out that I didn't have the rubber seal down just right, it was causing the problem. Repositioned it, and all was good.
  9. doxbike

    doxbike Been here awhile

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    FWIW, replaced the digitizer and still has the same issues-buttons work, screen doesn't :dog
  10. z-man99

    z-man99 Adventurer

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    This is my Zumo's problem. The button will light up on the screen after I touch it but it won't do anything. So is this more of a cpu problem? 55 minute of phone tech support with no results. Software is updated but the problem persists. Tech girl offered a $150 exchange or a $75 trade-up.
  11. Reaver

    Reaver Outta Here

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    If it's not the gasket issue noted above, and the techies didn't mention it......

    Plug it into ypur computer and access the internal memory (not SD card). Delete all those voices and text other than the English or maybe Spanish, whatever. That frees up memory. Don't know it that will help your specific problem but it won't hurt. Made mine faster. The old 450/550 is short on memory now with all the updated maps and such.

    It's still worth more than $75 on a trade up, as is.
  12. COSwede

    COSwede Uncle Han

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    Aug 26, 2008
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    Location:
    Arvada, Colorado
    Awesome job contributors!!! :clap

    Another Zumo 550 (already replaced once in fall 2011) has a new touch screen! Not much of a life span :eek1
    Ebay (seller - goodsupply0889) for $US 19.98. :rofl and I received it in less than 10 days...
  13. UnclebudinTX

    UnclebudinTX Been here awhile

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    Jan 18, 2011
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    did my 550 tonight.. took about 15 min.. I bought the screen and digitizer combo.. I previously order just the digitizer on ebay and they sent the wrong size...says it will take 20 days.. so I ordered the combo from different seller.. so since my screen from 550 was ok when the digitizer does arrive ill have spare combo on the shelf..

    I also recently picked up a nice 450 on ebay for a reasonable price,,it in better shape than my 550. nice to have a back up.. the 550 has gone astray on my twice.. once while attemping an iron butt, the last when digitizer failed I was 800 milefrom home and had learn to read a paper map all over again..
  14. WJBertrand

    WJBertrand Ventura Highway

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    Ventura, CA
    My first post to ADVrider! I wanted to express gratitude to those contributing to this thread, it's easily the most complete collection of information on this subject I was able to find anywhere on the web. Great work!

    I completed my second go at the digitizer replacement this past Sunday evening and as of today the 550 is still working properly. My first go resulted in the condition as though someone was holding down one of the buttons continuously as some have reported above. No amount of fiddling with the gasket would resolve it. What was strange about my first attempt was that everything worked perfectly upon reassembly, but then began acting up the following day. Upon disassembling the unit again, I found that leaving the upper right hand screw that holds the digitizer/LCD sandwich to the front cover (looking at the front of the unit as you would use it) slightly backed off from full tight, allowed it to work perfectly initially, but again the next day begin acting up.

    I wanted to post this as I believe my error, in part, was not cleaning the old adhesive off thoroughly enough. I also think I might have had a wrinkle in the double sticky tape. I'm thinking this left pressure points when reassembled causing the digitizer to malfunction. Whatever adhesive they used on my unit, GooGone and 90% isopropyl alcohol would not touch it.

    I went back in a third time with the idea of removing the new digitizer and doing a more thorough clean up, but of course I cracked the damn thing even though I was being as careful as possible. What I ended up doing was removing the metal frame from the LCD so I could use something more aggressive on the residual adhesive without worrying about damaging the display. Brake cleaner did the trick. I then reinstalled the frame on the LCD.

    I bought and installed the second digitizer on the perfectly flat, clean frame and used a flat surface and a right angle to line things up perfectly before sticking it on this time. Any way, I wanted to contribute these small tips and ask a question. I wonder if we can get a sense of how effective this repair is? That is, there is several cases like mine where the fix didn't last and I'm wondering how common re-occurrences of the failure are?

    After my experience with it working fine immediately after the replacement, and then screwing up later, even though the unit is working fine at the moment, I'm pretty tentative about it.
  15. Reaver

    Reaver Outta Here

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    Welcome to the asylum WJBertrand!

    I replaced mine last winter having ordered 2 from Goodsupply 0889 just in case. It worked right out of the gate and has been fine all summer for over 18k kms. My only minor complaint is that it seems to scratch easier than the original Garmin screen. It was cheap and I have a spare so.....

    Ummm, since it's original failure mid trip, I find myself with two 550's and a 450 now. :huh Once bitten twice shy?
  16. Plasterman

    Plasterman Adventurer

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    Mar 31, 2007
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    Just completed the repair. Simple fix, low cost. Saved a ton of money. Thanks!
  17. WJBertrand

    WJBertrand Ventura Highway

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    Ventura, CA
    Well, going on over a week now and my 550 seems to be back! :clap This in spite of me dropping it on the garage floor whilst trying to remove it from the cradle. I watched in horror as it bounced and tumbled across the floor, shedding parts along the way! :eek1 When I picked it up, the new digitizer appeared intact and it turned on and booted up seemingly normally. The interchangeable top cap had popped off and the SD card was jettisoned, but all worked fine upon reassembly.
  18. Libertynh

    Libertynh Adventurer

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    Mar 14, 2009
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    Newfound Lake New Hampshire
    Just wanted to say that I ordered and installed a replacement digitizer based on info found here and it works! Hopefully no more fighting with the thing since I am too cheap to buy another. Took two attempts to make the ribbon cable connection but other than that it wasn't too hard. Thanks for posting this!
  19. DMSarnia

    DMSarnia n00b

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    Apr 30, 2011
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    Location:
    Sarnia, Ontario
    I've been looking on ebay for the replacement 'Digitizer' but they list a number of different sizes ranging from 79 x 64.5 mm to 76 x 63mm.

    I have a "HONDA" badged Garmin 550 Zumo that has just begun to crap out. Before I remove it from the bike, I am hoping to have all I need on hand to fix it.

    Thanks in advance,
    Don in Sarnia
  20. mellysenior

    mellysenior n00b

    Joined:
    Feb 20, 2009
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    very pleased to find this thread; my 550 has also gone the way of others and thought it finished until google came to the rescue!

    Look forward to fixing as described and thanks to all :thumb