How can I fix a problem that I am having while updating new software on my Lumia 520?

WPCentral Question · Jun 9, 2015

problem while uppdating new software tomu lumia 520

80072ee7 eror while updating to denim software to my lumia 520

Harrie-S · Jun 9, 2015

First check if the ?battery saver? feature is turned off.
If you have any apps update from store, run those please.
Also make sure you have enough space for this update.

error 80072ee7 on my lumia 720 while trying to update. - Microsoft Community

And/or

http://forums.windowscentral.com/showthread/275588.htm