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I have a Fritz!Box 7390 I bought while living in Berlin and would like to switch it to English. I've tried using the Recovery Tool, but it rejects updating the device. How can I update the device to the latest International firmware?

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3 Answers 3

Reset to default
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ruKernelTool

You'll need a Windows image for the process, but ruKernelTool allows you to do what you want. The tool and website is in german, but the process is pretty straightforward:

  1. Start the tool and agree to everything.
  2. Click the download tab and allow it to update its links to the AVM servers
  3. Select the firmware you want, in this case 7390 International 84.06.20. Click Download.
  4. Switch to the Network-tab (Netzwerk) and click the Media-Sense item to turn it off. Windows will reboot.
  5. Go back to the Downloads-tab and select you downloaded firmware and click the kernel source button. (als Kernel-Quelle verwenden)
  6. You should switch to the Upload-parameter-tab and enter your WLAN key from the bottom label on the box.
  7. On Upload-tab click the Validate button and it will list out if your choices check out. It will provide warnings in German so you might want translate.google.com handy. (Uberprufen)
  8. Finally start the upload to the device. (Upload starten)

If all goes well your router should reboot, Windows will reactivate Media-Sense and reboot, and your router should have a language selection option. Your router should be accessible via http://fritz.box

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  • This question has been viewed over 10000 times, but only a score of 2?!
    – Cameron Lowell Palmer
    Commented Mar 10, 2017 at 8:30
  • In my case, the reason it that it doesn't work. I've tried many approaches: wifi, ethernet cable (both to the Powerline and the router), but I always end up getting "Adam2-IP-Adresse setzen... fehlgeschlagen!" after I plug the Powerline back. It might be because I'm using W7 on Virtualbox, but I really can't get a "real" Windows machine.
    – Andrea Sciamanna
    Commented Mar 24, 2017 at 15:08
  • Here's the full output (I've only changed MAC addresses and hashes, just in case), provided it's useful: gist.github.com/sciamannikoo/2a7bc54ebe676ee2cbeea628b7f06a7d
    – Andrea Sciamanna
    Commented Mar 24, 2017 at 15:15
  • 1
    If you're still using a Fritz!Box ask yourself, why? I highly recommend you look at the modern world of mesh WiFi devices from Linksys, Netgear, Google and the like or on the focused networking devices from companies like Ubiquiti. The single all-in-one device model of Fritz!Box has not shown itself to work well in today's challenging RF environments.
    – Cameron Lowell Palmer
    Commented Jan 8, 2018 at 10:04
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    Apparently the ruKernel Tool site and others are down, due to personal issues and GDPR compliance being difficult.
    – Journeyman Geek ♦
    Commented Jul 5, 2019 at 10:10
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On FRITZ!Box 7520:

  • Login to the admin console (try https://192.168.178.1 if unsure)
  • In the right hand vertical menu find the German equivalent of System
  • Under System find the German equivalent of Region and Language
  • Select the desired language
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the formal way is to go to AVM website click here and download the correct firmware for your device, in many cases and especially the new routers, they have an international firmware.

Here is the FTP archive and I am pointing to a firmware for router 7330, it shows an English firmware. There is one more piece of information to add here, in Germany we have Annex B which means ISDN and DSL can be on the same line simultaneously, most of the rest of the world is Annex A. You need to adjust the Annex type to be able to connect to your DSL company. Most international firmware has an option to change the Annex.

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