During the upgrade process,
If the prompt “Open USB failed” appears, check whether the cable is properly connected to
the repeater, and whether the USB interface is occupied by other software.
The prompt “The firmware version [xx.x.xx.xxx] is beyond the upgrade software!” indicates
the upgrade package is not compatible with the current firmware. Please stop upgrading
right away.
“Reading data error!” or “Writing data error!” or alerts alike indicates the USB connection
has timed out. Click “OK”, and try the upgrade again by restarting the repeater and entering
the download mode.
The prompt “Writing data error! RCDB data is already saved to file, from which you can
restore your data when necessary.” indicates an abnormity of the RCDB data during
upgrade. Click “OK” and then you can see a “Restore” button in the main interface.
Step 4 (optional) Restore the repeater in case of the RCDB data abnormity, in this way:
1. Click “Restore” to proceed to the corresponding interface.
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