Hello,

Garmin now had blocked the possibility of installing old firmware in some devices if not all of them.

I learnt it yesterday when i installed version 6.80 in my garmin 721 and i lost the possibility of returning to any other firmware. Holding the button now does not work now, it worked in 6.5 or any other old firmware. I have done it before from 6.5 to whatever firmware i liked for example 2.8. But now Garmin 721 does not offer the possibility of installing old firmware. Garmin has blocked it to not allow the use of other maps made by third party sources. In my case it was a local map made by an individual for a very small 10kmx10km area.

Is there any way to get rid of an installed 6.8 version and return to old firmwares?

Could somebody help me finding firmware 3.8 and 4.2 for 721 for my other unit?

Any help will be appreciated. I have only 2.8 old firmware and modern ones.