Android: getDeviceId() returns an IMEI, adb shell dumpsys iphonesubinfo returns Device ID=NULL

问题:

Different results for my low cost chinese tablet. It's not a phone so why getDeviceId() returns a number that seems to be a valid IMEI?

C:\>adb shell dumpsys iphonesubinfo Phone Subscriber Info:   Phone Type = GSM   Device ID = null 

but using

TelephonyManager tManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); String uid = tManager.getDeviceId(); 

uid = 35881700... (I'm not showing the whole IMEI number for privacy)

回答1:

Is there any kind of GSM radio in your tablet? (Sorry for posting an answer, but I am not allowed to post comments ..)

According GSMPhone.java in the android version that I am looking at, the IMEI is set when the radio used by the device becomes initialized.

文章来源: Android: getDeviceId() returns an IMEI, adb shell dumpsys iphonesubinfo returns Device ID=NULL