@felmue said in [Core2] How to disable speaker tone during booting / power-up?: Hi guys good news. UIFlow M5Core2 firmware v1.10.0.1 finally allows to enable / disable the boot beep via the Configuration menu in the brand new M5Burner v3.0. Thanks Felix That's good to hear, it's driving me bonkers listening to it every time I reset and I reset alot