: Turn off the console. Hold the Sync button (the small button used to link controllers) while turning the power back on. Keep holding Sync until the console fully boots to clear the failed update download from memory. Connectivity and Storage
: Place the $SystemUpdate folder on the root of a FAT32-formatted USB drive, plug it into the console, and restart to trigger the update prompt. Community Tips How to fix a xbox360 software update failed
If the online update continues to fail, you can manually install it via USB: : Turn off the console
: Download the matching update from the Official Xbox Support Site . plug it into the console