FRITZ!Box 7390 Service - Knowledge Base
FRITZ!Box 7390 Service
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Cannot update FRITZ!OS: Error message after selecting a FRITZ!OS file
The update for the FRITZ!Box cannot be installed. After you select the file in the FRITZ!Box user interface, one of the following error messages is displayed:
- "The update failed: The specified file does not contain any valid firmware for your device."
- "The update failed. An unspecified error occurred during the update."
1 Downloading the FRITZ!OS file again
- Call up ftp.avm.de/fritzbox/ in your web browser.
- Switch to the folder for your FRITZ!Box model, then to the subfolder "other", and then to the folder "fritz.os".
Note:The complete model name of your FRITZ!Box is displayed in the FRITZ!Box user interface on the "Overview" page and on the underside of the device.
- Download the file with the extension ".image" to the computer.
2 Restarting the FRITZ!Box
- Click "System" in the FRITZ!Box user interface.
- Click "Backup" in the "System" menu.
- Click on the "Restart" tab.
- Click the "Restart" button.
3 Repeating the update process
- Click "System" in the FRITZ!Box user interface.
- Click "Update" or "Firmware Update" in the "System" menu.
- Click on the "FRITZ!OS File" or "Firmware File" tab. If the tab is not displayed, enable the Advanced View first.
- Click "Save Settings".
Note:Save your FRITZ!Box settings again under "System > Backup" right after successfully completing the installation. Then you can always restore it to a working configuration.
- Click the "Browse..." or "Choose File" button.
- Select the FRITZ!OS file that you downloaded (image file).
- Click the "Start Update" button.
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