Looking to get version 5.40

There you go: http://gawisp.com/perry/fenix_D2_tactix/ (not affiliated with that link in any way)

There you go: http://gawisp.com/perry/fenix_D2_tactix/ (not affiliated with that link in any way)

Thanks SanchoEDLP, got the right file, uploaded it to my Garmin folder, then disconnect the watch but I get no message to install the software, and furthermore, the file (after I have renamed it GUPDATE.GCD) has been erased.

Is there a special way to downgrade? Thanks

To downgrade FW, you need a special version of GUPDATE.GCD that allows it. Otherwise, the watch just looks at it, see's it's the same or older than what's installed, and then just deletes it. When you do get a downgrade version of the GCD, all setting will get reset.

Also, when downgrading from production FW to older production FW, there's a good chance you'll be "reupdated" to the latest production.

I just want to be able to use the wacth again with IQ apps. Currently my watch is shown as FW 6.60 which never existed, and no matter which IQ app I use, it is not shown in Garmin Connect web or mobile... It used to work on 5.40.

Sounds like you need to contact Garmin Support, as that is VERY odd.. (6.60?) did you my any chance install a .GCD that wasn't built for your watch or something?

Have you tried installing the 6.75 beta FW to bring it up to that? The beta FW also has a GCD that will take you back to 6.00

Yes contavted them but as I was dissapointed by their suggestions I tried to find here a solution. They say it is an issue with the IQ developer, but I told them I tried random apps and not a single ones appear in the Garmin Connect web. Tried 6.75 went back to 6.00 but it shows 6.60!!! And does not work with IQ apps... I have asked for a replacement, although I believe it is a software issue.

What happens if i delete all the files on my watch? Well later the watch be able to restore its files after a sync?