Hi - Just started to season a new Bullet v1.5. Did one roast that went well. I saw the device was at firmware version of 432 or so ( didn’t write it down) and updated to v591. After the reboot and every time i power it up I get a what sounds like a quick beep then constant tone. The only way I’ve been able to clear it is to run the fan calibration. In the end it resets the tone. I’m good till I power it off.
Any suggestions? Can I load an older firmware version?