I want to get IMEI(International Mobile Equipment Identity) in Shield tablet by getDeviceId() function. The program works very good for another smartphones and tablets but I have problem in Shield tablet(nVIDIA Shield 8-inch tablet).Permission in Manifest and for Android>=6 is in order and you can find this part of program in the following:
TelephonyManager tManager = (TelephonyManager)this.getSystemService(Context.TELEPHONY_SERVICE);
IMEI = tManager.getDeviceId();
The result is null.Please help me.