It means that you have either entered something wrong or xbox live manufacturers need to take a look into the status code fast because of so many complaints
Chat with our AI personalities
Ich kann YouTube auf xbox 360 nicht öffnen und zeigt immer Statuscode 8007274d?
Remove all cards on the account, deleting your Marketplace System Data from the System Items folder on your Hard Drive, clearing your System Cache, restarting your Xbox, THEN adding your card.
This error is unknown to Xbox support website. The error similar to that is a marketplace error, downloading files and other things within the marketplace.
When you have troubles with updating your xbox, take out the harddisk and start the update. Put it back in and it should be working.
To redeem a Xbox game code you need to go to the marketplace. From the marketplace you click on redeem code.