I had this problem to red light blinking ,I downgraded and its working ! But before you start you have to download current update on your pc If the updater says that your device is up-to-date and you still have a problem, you can try to set it back to a former software version and do the upgrade again. When it says there is no update available, you need to type the following keys: [a], [d], [v], [up arrow], [down arrow]. After that, you should be able to select a former software version and start the upgrade.