How To Uniquely Identify An Android Device? even after change the system or factory reset.

Question

I wonder maybe there are some ways to get some hardware info, and then make an unique id for this phone based on these info.

Is that possible?

Please go through http://android-developers.blogspot.in/2011/03/identifying-app-installations.html or http://stackoverflow.com/questions/2785485/is-there-a-unique-android-device-id — Jithin Sunny, Nov 26 '15 at 08:37
I see these posts, but these ids change when reset and install an different ROM on your phone. — Luis404, Nov 26 '15 at 08:37

score 0 · Answer 1 · edited May 23 '17 at 12:07

0

You can use device IMEI number. Most of case it's unique.

check this post -> How to get the device's IMEI/ESN programmatically in android?

edited May 23 '17 at 12:07

Community

1
1

answered Nov 26 '15 at 08:36

Zahidul Islam

3,180
1
25
35

IMEI is also changeable – Luis404 Nov 26 '15 at 08:38

score -1 · Answer 2 · edited Nov 26 '15 at 09:23

-1

As you read there isn't a 100% safe method to get a unique id. Another approach that you can use (if you want a unique identifier for your app) is to generate a random UUID at your first install and save it locally;

UUID uuid = UUID.randomUUID();
preferences.setAppId(uuid.toString());

edited Nov 26 '15 at 09:23

Abhinav Singh Maurya

3,313
8
33
51

answered Nov 26 '15 at 09:05

Stefan

145
1
1
8

Luis wants something that will persist after a factory reset of the phone - this will not. – James Monger Nov 26 '15 at 09:27

How To Uniquely Identify An Android Device? even after change the system or factory reset.

2 Answers2