Alarm not working after 26.00 update

i have a 6 pro with 26.00. i wake up every morning using my alarm 5 days a week and have no issues with it. it could be a corrupt install of the new firmware or a hardware problem.

Yeah.  Contacted Chris and sent him the video I had sent garmin support months ago.  The pattern is always the same.  

1. reboot watch
2. alarms work for 1-2 days
3. ~day 3 alarms stop working
4. miss morning work meeting

I Just installed beta 26.79 and alarms have now been working for ~4 days so maybe that fixed it?  Hopefully after owning this dumb thing for 2 years it actually starts working correctly for the first time!

Hi - I've just had exactly the same problem after updating my Fenix 6x Pro to 27.00 (alarms were working fine before that). Now the alarm has failed 2 mornings on the trot. Having found this post I have just tried again with a few more alarms all of which failed to go off. Will try a reset to see if that helps, but confidence has now been knocked.

Is it possible that you had an alarm go off during an activity?  That may have been what was breaking my alarms back when I was having problems. I had a 4:30 pm alarm but was often out for a run during that time. The alarms seemed to break after that. 

Afraid not, unless sleeping counts as an activity - definitely linked to the software update to 27.00. I reset the watch last night, restored settings etc from backup, re-installed the watch face I like and the API key for the weather. Tested the alarm and it worked, and used it this morning and it worked fine again. will see if it lasts, but not very good if this has to be done every time there is an software update...

After updating my fenix 6s to 27.00 (6a5363d), my alarms don’t always work. Made me oversleep for work.. Had my iPhone as backup since and it happened today as well… 

I have this issue too now sw version 27.00, none of the alarms work suddenly and I did reset the watch and even did not do a back up and still does not work.