Bought a phone 3years back, didn't know there were ap and ori. It was an se ap set and I have, drop countless times, test the battery to the max, run under the rain, talk for long hours, until today, except for sign of usage, I can proudly say, in good condition! The battery and charger too. But now that I read about it here, I couldn't even find the ap sticker. Guess I'm being very very lucky.