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  1. #1
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    Unhappy Nuvi 54LM: Shutdowns in ~2 secs after reflash

    While performing a map update via the GarminMapUpdater software, the unit became unusable. So I proceeded to

    Reflash the Nuvi 54LM in pre-boot mode (Garmin usb drivers installed) using GarminCure3 v0.1 to load the Cure with file: nuvix2andx4_GCDFile__400.gcd

    Note: I could not find any explicit reference to Nuvi 54LM software version on this site so I used:
    [Only registered and activated users can see links. ]

    Was able to flash the device using Updater.exe

    However on reboot, it shutdowns in about 2 secs and am unable to format it in RMPrepUSB within this time. It appears in RMPrepUSB momentarily but before I can go through with the formatting sequence, it shuts down

    Am able to reflash it using Updater.exe tool again but same shutdown in ~2 secs symptoms exist.

    1. Did I use the right nuvix2andx4_GCDFile__400.gcd file for the Nuvi 54LM device? Is the shutdown because I used the wrong software update file?

    2. Any magic sequence to make it not shutdown in 2 secs so that I can format it using RMPrepUSB?

    Thanks in advance!

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  3. #2
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    Update: I re-flashed it using the ORIGINAL firmware option in GarminCure. Now the device boots up but is not recognized by the computer. (does not appear in Device Manager, no drive letter shown, in Device diagnostic mode it states USB Device: No Cable Detected)

    How do I revive from this situation?

  4. #3
    GPSPower Helper Nuvi 54LM: Shutdowns in ~2 secs after reflash
    Nuvi 54LM: Shutdowns in ~2 secs after reflash
    dasilvarsa's Avatar
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    Does he device seem to work properly ? Can you navigate with it. ?
    Try to connect to Garmin Express.
    The difference between stupidity and genius is that genius has its limits.
    Albert Einstein.

  5. #4
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    If the device is flashed using the ORIGINAL firmware option in GarminCure, it boots and device options are available. However since, it won't detect in a computer via USB, I can't load any maps onto it. So navigation is not possible.

    If flashed using CURE option in GarminCure, it goes into 2 sec shutdown loop. Connected to Garmin Express. Itís able to detect it before it shutdowns in 2 secs. Was able to install Garmin Express update (after multiple attempts during shutdown) but device still continues to shutdown.

  6. #5
    GPSPower Helper Nuvi 54LM: Shutdowns in ~2 secs after reflash
    Nuvi 54LM: Shutdowns in ~2 secs after reflash
    dasilvarsa's Avatar
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    Try Another Cable ?
    Try Another Computer ? Prefer Win10
    Garmin Drivers ? (Normally installed by express).
    GarminCure 3 by Kunix Works (I think you used it before)
    Maybe that device has a corrupt region 41 or a Hardware Fault. (Difficult to fix @ this Stage)
    Try to put Maps on SD Card to make it Navigate.
    Format SD to FAT 32 on another Device or Card Reader.(NOT NTFS)
    I think you have the correct RGN File, Try an OLDER version. Sometimes it Wakes them up.
    Try to PM Neil, Kunix, Catymag, Lolypop (they got Magic to fix difficult situations)
    Also look @ this [Only registered and activated users can see links. ]
    Last edited by dasilvarsa; 26th June 2017 at 06:15 AM.
    The difference between stupidity and genius is that genius has its limits.
    Albert Einstein.

 

 

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