Hi there. I just got a refurbished FR 235. As new really. Thing is that distinctive beep sound just stopped working. The tic box that lets us know that it's working on the watch menu is green and still no sound. Tried everything. Reset, hard reset, factory settings. Nothing worked. Seems that it's not common at all since I didn't find no one with the same problem. So, any tips ?? Anyone had the same problem?