Help for a friend: ICS on Galaxy Note
A friend of mine has just upgraded his Galaxy Note to ICS (the official Samsung upgrade) and it's absolutely destroyed the battery life. Previously he was getting a couple of days' usage from a battery charge; after the upgrade it's draining the battery flat in a few hours.
I'm no Android expert but I know that many people on this forum are. Can anyone offer any advice on what he could do to resolve the problem?