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  1. #1
    Junior Member
    Join Date
    Apr 2017
    Rep Power

    Default zumo 340lm bricked


    I have a garmin zumo 340lm which I recently updated using the garmin webupdater, all seemed well.
    I then copied a GPX file into the gpx folder on the device, from this point on the unit has become a proverbial brick.
    In detail: the unit has the splash screen showing,
    holding the power button down cycles the power,
    Power button and lower right screen will eventually cause a flash of white screen then retuns to the splash screen
    Power button and other 3 corners of the screen no apparent effect
    The device is not visible to my windows pc or linux pc
    I have latest USB drivers from garmin
    G7towin unable to see device
    Not sure if I have ever managed preboot

    Unit details

    Garmin Zumo 340LM
    HWID ?? Firmware version ??

    Can anyone offer any hope or is this something for the next house build?


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  3. #2
    Junior Member
    Join Date
    Nov 2014
    Rep Power


    Hi Man
    I had exactly the same. It's because of the last update. It bricked your device. Looks like a faulty update. Some devices got bricked. I brought it back to Garmin. Since it has no warranty they offered me a refurbished device for 108,- 💶.
    I a an technician, and didn't find a way to fastboot the device. The connection will be lost after a few seconds.
    You could use solder points, and try to reflash. But if the seal is broken, they don't exchange it for a refurbished one.
    Good luck



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