The update could not be downloaded from Xbox Live. Try the following:
- Try installing the update again.
- If you’re having problems connecting or staying connected to Xbox Live, see Xbox Live connection problems.
Note You can also update your console software by copying the update to a USB flash drive or a disc and then applying it to the console. SeeTroubleshoot console software update problems.
above is the description of this error, however, I am installing the update with a flashdrive.. It doesn't make sense to have error in live connection
actually unable to connect to live is the reason I must install with usb