So, my friend (an apple supplier from the philippines) is arriving from the UK 2 weeks from now. Asked him to get me an iPhone 4. Anyways, since I'm not there and I he doesnt know what to look out for. When he arrives, what issues or faults should I look out for? I just know the ff: 1.) the infamous antenna issue (not really a bother. im counting on the software fix or just a case +tape. xD) 2.) yellow circles,etc. 3.)inverted volume buttons thats all i know. anything else?