How do you find out how old your iPhone is?

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Tags

1. #check
2. #status
3. #using
4. #about
5. #option
6. #where
7. #first
8. #iphone
9. #support
10. #general
11. #determine
12. #serial
13. #warranty
14. #under
15. #settings
16. #number
17. #apple