iPadOS 15/ iOS 15: Fix Unable to Install Update An Error Occurred Installing iOS15/ iPadOS15 |100% Fixed 2021|

 

 

  If you’re trying to install iOS 15 or iPadOS 15 software update and discover a failure error that states “Unable to Install Update – An error occurred installing iOS 15” (or any iOS/iPadOS x.x.x), you may be understandably frustrated. Fortunately, this is usually easy to get around.

 

This “Unable to Install Update. An Error Occurred” issue can happen with basically any iOS or iPadOS version so it’s not limited to any particular release.

 

iPadOS 15 supported devices:

iPad Pro (2015) / Pro (2017) / Pro (2018) / Pro (2020) / Pro (2021)

iPad Air 2 / Air 3 / Air 4 / iPad (2017) / (2018) / (2019) / (2020)

iPad Mini (2015) / Mini (2019).

 

iOS 15 supported devices:

iPhone 6s / iPhone 6s Plus / iPhone SE (original model) / iPod Touch (seventh-generation) / iPhone 7 / iPhone 7 Plus / iPhone 8 / iPhone 8 Plus / iPhone X / iPhone XR / iPhone Xs / iPhone Xs Max / iPhone 11 / iPhone 11 Pro / iPhone 11 Pro Max / iPhone SE (2020) / iPhone 12 ini / iPhone 12 / iPhone 12 Pro / iPhone 12 Pro Max And iPhone 13 series.

 

Now, let’s see how to fix Unable to Install Update An Error Occurred Installing iOS 15/ iPadOS 15:

 

Solution 1:

 Enable and disable Airplane mode then reboot your iPhone/iPad and try to install the update.

 

Solution 2:

 In some situations, to let the update complete smoothly, you should delete the incomplete iOS 15 software update file and then restart the iOS update again. (Settings > General > iPhone/iPad Storage > locate and tap the update file > Click Delete Update).

 

Solution 3:

 If you are using a VPN, turn it off (Settings app > General > VPN) then try to install the update.

 

 Solution 4:

 A force restart can help you fix minor system glitch to get rid of any iOS error. So you can try to force restart your iPhone or iPad when facing the unable to install iOS 15 error.

 

Solution 5:

 The error may pops up due to insufficient memory. You can go to have a check whether there is enough storage space to complete the update. (Go to Settings > General > iPhone Storage to check and delete some useless files or apps).

 

Solution 6:

 If other methods didn’t help you get rid of the “Unable to Install Update - An Error Occurred Installing iOS 15” message, you may try to update your iPhone or iPad via iTunes.