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79 posts

Master Geek

# 218014 22-Jul-2017 14:54
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Hi all,




Thought it would be worth posting a method I've just used to upgrade my old Snap 7360 Fritz!box.


I've had this modem for some time, and knew there was new Fritz OS updates for it, but for some reason my device was still showing the old UI.


I tried clicking System > Update > Autoupdate then check for updates, but this would always auto direct to the index page. 


I emailed AVM asking for the latest Fritzbox image for my device, hoping I may be able to manually install it. AVM replied with great support, and provided a link: 




However, after downloading it, I could see no option on the manual install process to actually upload the image!


So, in this guide I'll explain how I managed to get around this. 


The very short story is that you simply need to edit the manual update firmware page HTML and remove the div style "display:none" from the upload button div.




It seems the fritzbox devs were probably told to not allow the ability to update the fritzboxes for some ISPs and the easiest way to achieve this was simply to hide the functionality on the page rather than any more drastic work...




So if your fritz UI looks something like this:


Click to see full size




(IMGUR link if above image link fails -


Head over to Update then flick the third tab "Fritz!OS File".


As you can see, there's no "Choose File" button. We need to unhide this in the code.


The easiest method (explained using Chrome) is to "Ctrl + Shift + C". This will allow you to hover over an element on the webpage and inspect its code. Hovering over or just below "Password" reveals about 3 Divs (A Div is a "Devision" or section in HTML) which have a Style assigned of "none". Essentially this means the element is hidden on the page.


So we need to unhide it.


Simply remove the text "none" from these Divs, and you should now see the Choose file and Start buttons appear. Choose the correctly downloaded image from the FTP site above and start the update process.




Hopefully at this point your frizbox will start updating!




Interestingly, after the update I still have these elements hidden on update page: 




Click to see full size 


Should a new Fritz OS come out, simply use the same method again to update.







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79 posts

Master Geek

  # 1827211 22-Jul-2017 17:50
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Specifically what I'm referring to. Seems I forgot to include this in original post:



79 posts

Master Geek

  # 1827316 22-Jul-2017 21:22
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I am in Chrome, however other browsers (without ad blockers) still show the same behaviour. 

23 posts


  # 1827932 23-Jul-2017 20:55
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You need to use the 'Save Settings' button first (with a password assigned) before the UI will offer the option to upload the new firmware.

79 posts

Master Geek

  # 1827934 23-Jul-2017 20:57
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I tried this prior thinking the same, and it did not change anything.

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