Cambridge Audio AXR100D Manual page 24

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1) Download and copy the firmware .bin file from the support site page above to a USB drive (copy to the root of the drive, not inside a folder, and do not
rename the file).
2) Insert the USB drive into the service port on the rear of the unit.
3) Insert power cable and switch on the unit.
4) Enter the menu by pressing the menu button.
5) Using the volume control, navigate to 'Upgrade', pressing the volume control to enter, then 'MCU upgrade' or 'BT Upgrade' (depending on the type of
upgrade), then 'Yes'.
6) The unit will then automatically detect the file on the USB drive and update automatically. The unit will then switch off. (If 'No File' message is
displayed then restart at Step 1)
7) Switch the unit on.
Note: It is recommended to perform a factory reset after the completing the upgrade. Please note that a reset will restore the AXR to its factory settings
and clear all stored presets.
Important Note: It is very important that once the Firmware upgrade has started you do not switch off the power to the AXR100D until the operation is
complete, otherwise the AXR100D may become permanently damaged.
Important Note: Do not connect/disconnect the USB dongle when the unit is still upgrading.