Ask the manufacturer for any firmware upgrades and use only the specific files from the manufacturer.
It is possible that the manufacturer gives you a download link.
Download the current firmware and extract it in the root folder of a USB stick. Do not extract the files
into a subfolder. Also, the USB stick must be formatted with the FAT32 file system. The radio does
not support any other formats.
It is possible that the firmware upgrade also restores the device to the factory defaults. This means that
your custom settings may get lost. Unfortunately, this is sometimes necessary in order for the device to
be put to the latest version.
The flashing process
1. Unplug the device from the wall outlet, it has to be switched off completely.
2. Press and hold the button 1. Switch the radio on (while keeping button 1 pressed). The message
"USB F/W Upgrade” will appear on the display.
3. Insert the prepared USB stick into the USB port on the device back panel.
4. A progress bar indicates the progress of the flashing process. Make sure not to interrupt this process.
The device must not be switched off during the upgrade and also the USB stick must not be removed,
otherwise irreversible damage can occur to the device.
If no progress bar is shown, the USB Stick is not properly detected. Please double-check if the USB
stick has been inserted properly. If it is, carefully repeat the steps in section “Preparation” of this User
Manual.
5. After the firmware has been updated successfully, “Done” briefly appears on the display.
Unplug the device from the wall outlet for a few seconds and reconnect it.
Then you can remove the USB stick and use the device normally.
THE MANUFACTURER RESERVES THE RIGHT TO CHANGE THE DESIGN AND THE
OPERATION.
PLEASE CHECK THE INFORMATION ON THE MANUFACTURER WEBSITE.
Warranty
Dear Customer,
The device has been carefully produced based on strict quality guidelines and stringently tested prior
to delivery. However, unexpected defects or material fault may always occur.