Serial number or IMEI got changed in android

Asked Aug 29 '18 at 09:52

Active Aug 29 '18 at 09:58

Viewed 1,195 times

We are using the Serial number and IMEI in an application and we have observed that there are many Pixel, Samsung and Motorola devices where either the serial number or IMEI has been changed.

What could be reason ?

Due to OS update ?
Access this data in background ?
Manufacturer defect
Fetching these details during OS update process ?
Could be possible some time, but in next re-try will get correct one ?

Note: We have observed this only in Android OS Version 7,8,9. We are using

For IMEI:

TelephonyManager telephonyManager = (TelephonyManager) mAppContext.getSystemService(Context.TELEPHONY_SERVICE);
imei= telephonyManager.getDeviceId();

For serial number:

Build.SERIAL

edited Aug 29 '18 at 09:58

Michael Dodd

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asked Aug 29 '18 at 09:52

Hardik Bambhania

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`getDeviceId` is deprecated, probably that is the reason it mayu work incorrecnty – Vladyslav Matviienko Aug 29 '18 at 09:56
I have more than 50devices with me, I do use of IMEI of those phones but never get changed, But if you factory reset or update your device then you Serial Number may change – Amin Pinjari Aug 29 '18 at 09:56
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**[tm.getDeviceId() is deprecated](https://stackoverflow.com/questions/46744104/tm-getdeviceid-is-deprecated/46744134#46744134)** – AskNilesh Aug 29 '18 at 09:57
`Build.SERIAL` is also deprecated, and will return some default value starting from Android O. – Vladyslav Matviienko Aug 29 '18 at 09:57
I honestly thought everyone had already switched to [advertiser Ids](http://www.androiddocs.com/google/play-services/id.html) – James Poag Aug 29 '18 at 10:00

Serial number or IMEI got changed in android

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