Garmin has been instructing those 910XT owners with the multisport activity bug to roll back their firmware from Version 2.7 to Version 2.6. The actual files needed must be obtained from Garmin Support. I do not currently have the files to host for download. Please e-mail [email protected] for the official files needed to perform this downgrade. In my opinion, Garmin should just publish this information on their website along with a download mirror so people don’t have to wait for a reply from support! The instructions are after the jump. Hopefully they will help you anticipate what you need to do before you have to wait for a reply from Garmin Support.
For Mac OS1:1. Navigate to ~user/Library1/ApplicationSupport/Garmin/Devices/numbered Unit ID folder/2. Unzip or drag and drop the files inside attachment to location above3. Open Garmin ANT Agent4. Turn On Forerunner 910XT and bring within range of the ANT stick5. ANT Agent will transfer software to device
1: On Mac OS 10.6 and higher: the Library folder is hidden. To get toLibrary:1. Open Finder2. Click Go in the top menu bar3. Click Home4. Click Go in the top menu bar5. Click Go to Folder…6. Type Library7. Click Go
Garmin Forum member JUICE7540 also suggested the following:
…you have to reenter all your settings because it wipes it clean. So make sure to save your settings somewhere and also upload all your data/workouts before reverting to 2.6.