I recently had someone asking for advice on buying an iPhone off of craigslist and ended up writing the following:
STEP 0: Make sure its a good/decent deal (see other postings and compare)
- Phones under warranty usually cost a little bit more than phones that aren't under warranty
- If its a really good deal then its a scam/stolen/bad
To do this:
Step 1.1: get serial
Step 1.2: check status
- https://selfsolve.apple.com/GetWarranty.do
- (ASIDE: Check if unlocked - Under the heading 'Find iPhone carrier support' if multiple carriers are listed then more than likely the phone is unlocked.)
- Check if under warranty - Click the link 'See your service and support coverage' to determine if the phone is still under warranty
3. Determine if the seller is the legitimate owner
There is no easy way to determine if a phone is stolen or not. However, if you are provided with the original receipt it is usually the best way of determining that the phone is legitimately owned. If this isn't available a phone that is provided with the original box and accessories is another good indicator that the person selling it is the owner of the phone.
4. Check the phone itself for damage
- Make sure it turns on and off
- Make sure it works with your micro sim card (These can be picked up for free from an apple store - call your carrier to transfer your number to the micro sim (Do this before going to see the seller if you can live without that line for a bit))
- ALTERNATIVELY - take a friend with you who has an iPhone and use his/her sim card to ensure it works (Make sure your friend has the same carrier you do)
- Make sure the speakers and mic work (Use it as a phone, have a phone call with someone in a different room
- Check for scratches and parts of the screen not responding to touch
- Check the dock connector for damage (bottom of phone where the cable plugs in) [ensure no discolouration or breaks ], if you can make sure your computer can recognize it
- Ask the owner if the phone has ever been opened (this voids the warranty)
- Ask the owner about battery problems (no real way to verify this, you could get screwed)
- Check moisture indicators http://support.
apple.com/kb/ht3302
Thats all I could think of off the top of my head. Let me know if I missed anything.



