FRITZ!WLAN Repeater 310 – Service - Knowledge Base

FRITZ!WLAN Repeater 310 – Service

Cannot update FRITZ!OS

Updating FRITZ!OS 6.04 or earlier to FRITZ!OS 6.51 fails. The previous version is still displayed after installing the update.


  • A relatively old FRITZ!OS is installed and it is not suitable for updating to the latest FRITZ!OS version. You must perform an intermediate update first.

1 Downloading the FRITZ!OS file

  1. Call up in a web browser.
  2. Switch to the folder for your product and then to the subfolder "other".
  3. Download the FRITZ!OS file with the file extension ".image" to the computer.

2 Installing FRITZ!OS 6.20

  1. Click "System" in the user interface of the FRITZ!WLAN Repeater.
  2. Click "Update" or "Firmware Update" in the "System" menu.
  3. Click on the "FRITZ!OS File" or "Firmware File" tab.
  4. Click the "Save Settings" button and save them as an export file on your computer.
  5. Click the "Browse..." or "Choose File" button.
  6. Select the FRITZ!OS file that you downloaded (image file).
  7. Click the "Start Update" button.

3 Installing the latest FRITZ!OS

After installing the intermediate update, you can install the latest FRITZ!OS: