Maybe read and follow the directions given in the Beta Forum? There is no way to avoid a complete reset to factory settings when backdating. Here are the instructions:
If you experience an issue using our Beta software, you have the option to backdate software and return to the version that is currently Live. Files for backdating software are below.
However, please note: if you choose to backdate software, your watch will not be able to download the same Beta update again. You will need to wait for the next Public Beta to be made available, at which point selecting Check For Updates will download the newer software. In other words, if you backdate software, you will stay on that backdated version until another new version is available.
The links to download files for backdating software are listed below. Select the link specific to your watch model. Please note that your computer will download a .zip file when you open this link. This zip contains the files you need to backdate software, as well as a "Read Me" text file with further instructions on how to backdate.
Please note that backdating software will reset your watch to default settings.
