T4S T8S Firmware Update Instructions

Before proceeding, please read the following instructions:

These instructions describe how to update the firmware of your ToneMatch® mixer.

1. Download and install the LI System Updater tool at https://www.bose.com/en_us/l1_downloads.html
2. Connect the mixer to your computer via the 2.0 USB Type-B port on the rear panel of your mixer.
   See Figure 1.
   
   
3. Connect your mixer to a power source via a ToneMatch cable or power supply and turn on your mixer.
4. To download the latest firmware, follow the appropriate link:
   • http://bosepro.link/t4s
   • http://bosepro.link/t8s
5. Launch the L1 System Updater.
6. Click the "Update" button next to "T4S (or T8S) Firmware". See Figure 2.

WARNING

Do NOT unplug or power off the mixer while it is updating.

PDF version T4S T8S Firmware Update Instructions