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  1. #1
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    Default Garmin ETrex 20 "system software missing"

    Hi all,

    I'm getting the dreaded system software missing message after my last update. I cannot get the unit to preboot, holding up on the stick only results in a longer delay before getting the message.

    Please advise if there is any way to rectify this.

    Thanks in advance.

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  3. #2
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    Quote Originally Posted by cjmurphy View Post
    ............ I cannot get the unit to preboot, holding up on the stick only results in a longer delay before getting the message. .....
    I think for eTrex you must click and hold down the thumbstick while turning on to access preboot.
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  4. #3
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    Neither works, still "SYSTEM SOFTWARE MISSING".

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    Reaching preboot in itself isn't doing anything, so even if your unit is in preboot if you don't start a flash with Updater.exe it will simply take itself out of preboot within a short period.

    You need to check some things, I don't have any access to an eTrex at present but if that series retains a copy of gupdate.gcd on the unit it will need to be removed before doing anything otherwise it will try to flash again from that wrong file after the proper firmware has been loaded. In explanation: 'System Software Missing' message means the unit has been flashed with incorrect or corrupted firmware. Try to access Mass Storage Mode. If your unit can't be seen in MSM by PC and it has gupdate.gcd on it you will need to load cure firmware to be able to access MSM. If you can access MSM, either now or after the cure, remove the GCD file and then flash the original firmware [software] as an RGN file using Updater.exe only. If you're not sure, you could flash it with original fw anyway and if it starts to boot but loads firmware again you'll know gupdate.gcd is onboard.

    Some reading for you:

    [Only registered and activated users can see links. ]
    [Only registered and activated users can see links. ]
    [Only registered and activated users can see links. ]
    [Only registered and activated users can see links. ] [it's for nuvi, but if necessary similar steps are involved to enable you to remove gupdate.gcd]
    [Only registered and activated users can see links. ]
    and this one should you need it:
    [Only registered and activated users can see links. ].
    Last edited by Neil; 22nd July 2014 at 08:01.
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    I fixed my eTrex 30 using the procedure outlined in "How to unbrick a Nüvi". I first used "updater.exe" lo load a cure xxx.rgn image made with the GarminCure3 tool, then I made and loaded a full yyy.rgn image.
    What I missed at first was that you have to hold the stick in the up position during the entire load process. A bit tricky, but it worked.

  7. #6
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    Hi All,

    Please, I have an eTrex 20 (software 2.80) and was going to download an update (Ver 3.90) this morning using my laptop hp ENVY (Windows 8.1-64 bits) and I got the SYSTEM SOFTWARE MISSING message. Then I cannot re boot the eTrex, as well as I cannot browse to it when it's connected to my laptop. My laptop cannot connect with it (when I use its USB cable).

    Kindly, could you let me know how to get my Garmin etrex20 get back working? What I have to do?

    Many thanks in advance.

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    read post n4
    [Only registered and activated users can see links. ]
    [Only registered and activated users can see links. ]

    [Only registered and activated users can see links. ]
    You have to navigate to get to the good.
    Nuvi1250/Nuvi 34xx/Nuvi 2200/Nuvi 66/Oregon 600/Galaxy S5 MM 6.0.1/TomTom GO/iGO Nextgen Avic,Basar,Isr.Gift/Navigon
    Please don't flood my pm box with questions you can post on forum!! You won't hear back from me.

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    Dear catymag,

    Thanks a lot for your concern.

    Unfortunately, my laptop couldn't connect with my Garmin etrex20 using the USB cable. So, I cannot copy any file to my etrex20. I tried to preboot it by holding the stick in the up position (and down position on the second time) during the entire load process, but all those attempts were failed to load the system.

    Also, I have downloaded the Garmin Updater and GarminCure3.exe, so, please what I have to do?

  10. #9
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    Perhaps you've read this from Garmin regarding using WebUpdater to fix the no-MSM access problem with outdoor devices. They refer to preboot mode as performing 'a boot block'. I don't think it will work for your eTrex because you have 'System Software Missing' message' as well as no MSM access:
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    Quote Originally Posted by fadi View Post
    .......
    Also, I have downloaded the Garmin Updater and GarminCure3.exe, so, please what I have to do?
    You need to now use those tools to access Mass Storage Mode as explained in Post #4. Read all the linked threads in that post so that you understand both the process and the purpose of loading a modified Cure firmware in preboot using Updater.exe as said earlier, because reaching preboot in itself doesn't achieve anything and the next step is to stop the unit booting completely which can only be achieved by cure fw. You must have a USB connection to then load the Cure fw. It may be enough for you to load Cure fw, remove gupdate.gcd file from the internal memory if it's present, reload original fw and not even need to reformat. Check you have latest Garmin USB drivers loaded too. [Only registered and activated users can see links. ].
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