: Power cycle your router and modem. Unplug them for 5 minutes before trying the update again.
: Download the matching update from the Official Xbox Support Site . How to fix a xbox360 software update failed
: Go to Settings > System Settings > Storage . Highlight any device, press Y , and select Clear System Cache . : Power cycle your router and modem
Go to product viewer dialog for this item. software update that has failed, start by or rolling back failed updates to remove corrupted temporary files . If the error persists, you can perform an offline update using a USB flash drive. Direct Console Fixes : Go to Settings > System Settings > 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
“The second 4-digit code in the error code is what dashboard version that the console is trying to update to. ... in my case updating to the latest dashboard via USB failed until the correct older 162xx version was loaded.” Reddit · r/xbox360 · 4 years ago