Good day! I updated the firmware of my RB750 to the latest version available on the official website, everything was fine until I turned it off. When I turned it back on it constantly restarted and made a beep (sound).
I tried to reset it with the button for that purpose and also using the internal reset. But there is no way
This is a quite well known problem of current stable version (6.49 and possibly 6.49.1). The only way to revive such device is to use netinstall. Beware that netinstall is a very fragile process and everything has to be done perfectly or else it will fail one way or another. So if it seems that your device can’t be netinstalled … it’s actually that you’re doing something wrong.