Thank yoy very much!

Sadly thisboot loop is worse and install from sd card works, but no change in the behaviour of the device.

I finally accepted the offer by garmin spain service and send non working unit and pay 375€ and they send me a brand new XT2 unit with 3 years of warranty.

Thanks again ...

you can zip it and send using smash at https://fromsmash.com/
then save the url of the file and share as you prefer (public or by PM)
this does not require to put any email registration or similar.

I need it too I have same problem.

Thanks I did this as 1st option but no result.
also tried to switch boot partition from a to b and neither boots.

As far as I can't access internal memory of the device I need to use the update from SD card as the only option to put alltogether to the device to run, and then I guess updating to ...

Hello eveyone.

I'm In a mess because my XT had failed somewhat updating firmware and now is on a "boot loop bricked state".
I managed to boot to the service menu, and therefore realized that it will be possible to fix doing an update from SD card stored firmware file.

I will open a ticket with ...