Hi @jradf ,
Just wondering if there is an option to do a factory restore in the watch's Settings area.
If so perhaps it may reinstall the BT component with the firmware reload.
According to the [https://www.slideshare.net/secret/Gr0ZtuQH43RjqX|user guide] you need this [https://play.google.com/store/apps/details?id=com.ruanan.bt&hl=en|app] on your phone as well.
The link mentioned in the user manual for the BTNotification app download doesn't work