pcho73 Posted July 3, 2018 Share Posted July 3, 2018 Hoping someone can assist on this. I tried updating the firmware on my Amplifi 30 the other day. It appeared to succeed but afterwards, the amp now emits a loud screeching hum which cannot be controlled by the volume, and with no instrument plugged in. Any controls on the app does not affect the sound. Scrolling the tone bank does not affect the sound. Nothing affects the sound - except when I plug in a headphone to cut the speaker output. But then it is in the headphone! Has this thing been bricked? Anyone else have this type of problem? Thanks in advance. Pcho73 Quote Link to comment Share on other sites More sharing options...
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