>>351152063
Try the beta/public test firmware. If that doesn't work you can repair the Oculus software from the setup .exe if you still have it. Otherwise uninstall the Oculus software, restart and install it again. Most Rift S issues are caused by underpowered USB ports but you know those worked fine before, second most are from the Oculus software fucking up. 

Long beep could suggest it was a GPU issue originally but beep codes aren't the same for all manufacturers. If your GPU has more than one display port try the other one or try with nothing plugged into the other DPs.