Skip navigation

iOS 5.1 failed to install on iPad 2

6179 Views 10 Replies Latest reply: Mar 8, 2012 8:50 AM by Griswaldo4g RSS
creektoad Calculating status...
Currently Being Moderated
Mar 7, 2012 5:40 PM

I downloaded 5.1 on my iPad 2, and after the download, the iPad rebooted itself and gave me the cryptic error "Unable to Install Update. Software update requires a network connection" with a Settings and Close button. The iPad has internet connection and if I click on Settings it just takes me to the Software Updates page.

 

On that page, it shows me iOS 5.1 is downloaded already with an Install Now option. If I click that, it gives me the Terms and Conditions, which I Agree to, and it tells me Verifying Update and then says "Unable to Install Update. An error occured installing iOS 5.1". If I reboot the iPad, same cycle again.

 

Anyone got any ideas?

iPad 2, iOS 5.0.1
  • iPhoNettie Level 2 Level 2 (290 points)
    Currently Being Moderated
    Mar 7, 2012 5:49 PM (in response to creektoad)

    I have found that I need to temporarily disable my anti-virus and firewall for the update to go thru.  I learned that some time ago after many frustrating tries!


    Hope this helps.

     

    iPhoNettie

  • WickdGhos Calculating status...
    Currently Being Moderated
    Mar 7, 2012 8:41 PM (in response to iPhoNettie)

    I have the exact same problem as @Creektoad. I downloaded it through the iPad OTA option in the Settings menu, and when I try to update I get the error, which gives me and option to "close" or "settings". If I choose settings it takes me back to OTA option with an "install now" button

  • Evil Timmy Calculating status...
    Currently Being Moderated
    Mar 7, 2012 9:37 PM (in response to creektoad)

    In the same situation. FWIW I had updated from 5.0 to 5.0.1 just prior to trying to do the 5.1 update. I also tried freeing some space on the iPad but it didn't help. Doesn't really seem like a "hammered server" issue.

  • Tomarina2 Calculating status...
    Currently Being Moderated
    Mar 7, 2012 9:58 PM (in response to creektoad)

    Me too, same problem. What do I do now? Connect it to my Mac and try to update with Itunes? Wasn't IOS 5 supposed to "cut the cord"?

  • Gitchel Calculating status...
    Currently Being Moderated
    Mar 7, 2012 11:36 PM (in response to creektoad)

    Same here, but on my 3GS.

     

    Is there any way to remove it from the device and download again?

     

    If I manage to download it on my Mac (which keeps failing halfway through the download right now), and I do manage to update my phone connected to the Mac, will my phone stop seeing the update as available to install?

     

    Wow. It seems remarkable that my iPad made it through the process fine.

  • Kougon Calculating status...
    Currently Being Moderated
    Mar 8, 2012 2:12 AM (in response to creektoad)

    I had the same problem. Was able to fix it by first connecting to a VPN. I was then able to download the update without any hassles. 

     

    See if you can delete(forget) your Wifi Network, Re-enter credentials and then try to download. It might work then.

  • Tomarina2 Level 1 Level 1 (10 points)
    Currently Being Moderated
    Mar 8, 2012 2:39 AM (in response to Kougon)

    How do you download the update when the Ipad says it's already downloaded? When I try to install the update, I get an error. (How do you initiate a new download?)

     

    I solved my problem by connecting my Ipad 2 to my Mac and updating thru Itunes. But what should I have done if I didn't have had that option? "Cut the cord"...not quite yet it seems.

  • Gitchel Level 1 Level 1 (0 points)
    Currently Being Moderated
    Mar 8, 2012 6:23 AM (in response to creektoad)

    I was eventually able to download the update to my ancient, slow Mac. Then I was able to upgrade just fine.

     

    Thinking about what I've read here and there, I'm beginning to think the problem has to do with some sort of weird timeout/sync issue between the device and whatever host. The fixes all seem to do with trying old Windows machines, changing wifi networks, changing network settings, etc. I wouldn't be surprised to hear someone else fixing this by switching to 3G.

     

    BTW, what's it mean when I have 1.8 Gig free after the download, but also have 1.8 Gig free after the install? Was there really a download?

  • Griswaldo4g Level 1 Level 1 (10 points)
    Currently Being Moderated
    Mar 8, 2012 8:50 AM (in response to creektoad)

    I have also found a fix for this whereas you manually download and manually restore the ipsw through iTunes.  I have posted the full instructions at trialsandtribstech.blogspot.com.

Actions

More Like This

  • Retrieving data ...

Bookmarked By (2)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.