HLX Firmware Update Procedure

WARNING: If the HLX has version 1.3.0 or earlier, call Audio Authority and follow the Extended Update Procedure below.

1. Download the firmware update from audioauthority.com and copy the files to a USB drive[info].
2. Insert the drive in the USB port on the front panel of the HLX and export any custom settings.
3. Find Firmware Update in the HLX menu and select HLX_V210.HFF file on the USB drive.
4. The expansion cards are updated, then the system reboots and begins the system card update.
5. The HLX reboots again when the update is complete. Check the Firmware Versions menu item to make sure all system and card firmware versions are 2.2.0. The bootloader is 2.0.0.

Extended Update Procedure

Required for Updating Version 1.3.0 to Version 2.1.0

There are separate update operations that must be done in the following order:

1. Call Audio Authority Technical Support and download the 2.0.1 update file to a USB drive[info] from audioauthority.com. (Export any custom settings so that they may be restored afterward.)
2. Disconnect AC power, then press and hold the knob while connecting power.
3. Select HLXBREP.HFF file as the firmware file.
4. DO NOT press the knob after the update is finished! Disconnect AC power from the HLX.
5. Connect AC power again – DO NOT press the knob until boot up is done.
6. Wait for the BLREP to load; then select HLXBL200.BL file. Wait for the update to finish.
7. Disconnect AC power, then press and hold the knob while connecting power.
8. Select HLX_V210.HFF file. Wait for the update to finish; the HLX reboots.
9. Once the HLX boots up, select Firmware Update in the menu.
10. Select the HLX_V210.HFF file. The expansion cards are updated, and the system card updates a second time. The HLX reboots; the entire update is now complete. Check the Firmware Versions menu item to make sure all system and card firmware versions are 2.2.0. The bootloader is 2.0.0.
11. Import custom settings from the USB drive if desired.

[info] Most USB drives are compatible with the HLX, however, if you experience difficulties with the update, try again using a different USB drive.