If you've just received your T4S/T8S Tonematch mixer please follow the instruction sheet in the box to update your firmware. We want you to enjoy the latest update and functionality of your new mixer.
If you've misplaced those instructions see the link below.
The latest firmware revision is v1.1.4 (November, 2018)
If you're not sure what version you have see: What version is my firmware (T4S/T8S ToneMatch mixers)