STC FIRMWARE UPDATE
Please do not perform this firmware update without authorization from your distributor/dealer.
Risk of bricking the amplifier should firmware update goes south
Open the top cover, identify the volume control chip, i.e. MUSES 72320, or BB2310.
Download the firmware tool. Download link: here.
Unzip the firmware zip file, you should see the following:
200309_72320.hex - Firmware for MUSES 72320
202003_2310.hex - Firmware for BB 2310
Follow the following instructions carefully.
It is advisable to test the amp with a pair of cheap loudspeakers. We can't too careful, can we?