Downgrade to 20.xx possible due to LTHR bugs?

leflic 19 days ago

With the new and completely broken LTHR algorithm (https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-955-series/397068/inaccurate-lactate-threshold-results-continue-in-21-19), the watch is almost unusable for training. Is there any way to downgrade to a previous version? Thank you

0 DaibaDabu 16 days ago

please give me an update if you find. a way to downgrade firmware on 955 Solar. i have worse problem on this watch. can't use the WHR and ABC Sensor don't work, vibration as well.

0 8125416 13 days ago in reply to DaibaDabu

Please refer to following. It has instruction to downgrade.

forums.garmin.com/.../zip-file-firmware-17-xx-or-18-xx