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in my app : I want to prevent user send my app to another phone i have idea to check serial number to device and every user i sell my app for him
,i will give him app open on his device with his derail number just don't open in another phone

MY question is How i can check the Serial number to device ??

Ayham Showa
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    Possible duplicate of [Is there a unique Android device ID?](http://stackoverflow.com/questions/2785485/is-there-a-unique-android-device-id) – Charles Feb 10 '17 at 22:49
  • i will store all sn to device i sell him if I see duplicate i will give him another phone @Charles – Ayham Showa Feb 10 '17 at 23:03

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