How do I update my Windows Phone to Windows Phone 8.1 without getting the 801881e1 error code?

[WPCentral Question]

Every time I attempt an update on my Nokia Lumia 520, I get the 801881e1 error. I use Wi-Fi. It checks for the update and then updates for a little bit but then it fails. How do I resolve this error?

 

[borasar]

Every time I attempt an update on my Nokia Lumia 520, I get the 801881e1 error. I use Wi-Fi. It checks for the update and then updates for a little bit but then it fails. How do I resolve this error?

Error code 801881e1 for checking updates - Microsoft Community

 

[George Mathew Jose Kalarickal]

use NSU