Knowledge Base
AVM Content
- FRITZ!Box 7690
- FRITZ!Box 7590 AX
- FRITZ!Box 7590
- FRITZ!Box 7583 VDSL
- FRITZ!Box 7583
- FRITZ!Box 7582
- FRITZ!Box 7581
- FRITZ!Box 7560
- FRITZ!Box 7530 AX
- FRITZ!Box 7530
- FRITZ!Box 7520
- FRITZ!Box 7510
- FRITZ!Box 7490
- FRITZ!Box 7430
- FRITZ!Box 7390
- FRITZ!Box 7360
- FRITZ!Box 6890 LTE
- FRITZ!Box 6850 5G
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 download.avm.de/fritzbox/ in your web browser.
- Switch to the folder for your FRITZ!Box model, then to the subfolder "deutschland" or "other", and then to the folder "fritz.os".
Note:The complete model name of your FRITZ!Box is shown in the FRITZ!Box user interface on the "Overview" page and is also printed on the sticker on the bottom 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" in the "System" menu.
Important:If the "Update" menu is not available, your FRITZ!Box was supplied by your cable provider. The cable provider automatically installs new FRITZ!OS for these devices. It is therefore not possible or necessary to install an update using the FRITZ!Box user interface. Refer to your provider for information on the new FRITZ!OS version and possible dates.
- Click on the "FRITZ!OS file" tab. If the tab is not displayed, enable the Advanced View first.
- Click "Save Settings" and on the FRITZ!Box, confirm that the procedure may be executed if asked to do so.
Note:Save your FRITZ!Box settings again under "System > Backup" right after successfully completing the installation. Then you can always restore a working configuration.
- Click the "Browse..." or "Choose File" button.
- Select the FRITZ!OS file you downloaded (image file).
- Click the "Start Update" button.