Thread: GARMIN ETREX 32x

I have found a manual

Code:

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(German), the main points are:

1) Download the desired firmware as a ZIP archive to your computer.
2) After the download unzip the file and rename it to GUPDATE.GCD if necessary.
3) Copy the GUPDATE.GCD file to the /garmin folder on the connected GPS device.
4) In the last step disconnect the GPS from the computer. Turn on the device and the update will start automatically. Now you should leave the device alone and never switch it off. After some waiting time the firmware is updated and the device starts with the usual start screen.

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@ VadimK
I downloaded the file eTrex22x_32x_Webupdater__250_JNX.rar
Unpacked eTrex22x_32x_Webupdater__250_JNX.gcd
Where I am very unsure: Can I just rename the file and follow upper scheme?
Where is the special feature in "JNX". I did not understand that. I would like to avoid my Garmin to scrap.