How to reverse back your Garmin unit to a previous FW version

**catymag** · 14th December 2010, 10:56 PM

How to reverse back your Garmin unit to a previous FW version

You can use this method to reverse back your Garmin device to a previous Firmware version-
The firmware links you find on Garmin updates pages
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**elig99** · 15th December 2010, 07:35 AM

When toying with tricks which require editing of GarminDevice.xml, I always prefer to copy this file from the Nuvi device to a Garmin root directory on a USB stick. Garmin's updaters will treat a USB stick with a x\Garmin\GarminDevice.xml file as a real Nuvi and will download all required data onto the USB stick. This way the real GPS will be safe from any inadvertent mistakes.

**hacsat** · 16th December 2010, 11:14 AM

Does anyone know how to go back to version 2.50 for Nuvi 3790, because the link is not available for download.

**catymag** · 16th December 2010, 12:43 PM

Code:

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**timbawolf2k** · 4th January 2011, 01:56 AM

this truly saved me as i seemingly "bricked" my nuvi by trying to upgrade the firmware but bringing it back to the original firmware did the trick. you sir are a lifesaver!

**chakmool** · 28th March 2011, 08:26 PM

Anyone knows where I can find Nuvi 265WT any older firmware without the need of Webupdater? Or how can I get my 265WT TW version to flash back to US version?
Thanks!!!

**catymag** · 28th March 2011, 08:30 PM

[Only registered and activated users can see links. ]

**chakmool** · 29th March 2011, 12:34 AM

Oh wow.... this worked great!!! I'm downloading the latest file as I type. Still need to find out how to flash it back, wondering where I can find more info about it! Thanks a lot, Catymag!

aekhong · 2nd April 2011, 08:47 AM

Originally Posted by chakmool

... Still need to find out how to flash it back...

2ways for 2x5 Series

1). put in your gupdate.gcd file within SdCard\Garmin\Gupdate.gcd (You need to delete the previous one first.)
or
2). Put in your gupdate.gcd file within Nuvi\Garmin\gupdate.gcd

**fra1** · 7th July 2014, 03:41 PM

hi
just bout the astro 320 and 2xdc50 bundle.
cant seem to get the handheld to connect to the collars once i swithch the handheld on it says:
radio funtion is disabled,Frequency is not Authorised for this location.
im in the uk,northern ireland. any help would be appreciated.

thanks