For the present PyUSB version 1.0.2, I found the correct syntax to answer this question to be: import usb dev = usb.core.find(idProduct=0x001f) print( usb.util.get_string( dev, dev.iSerialNumber ) ) dev2 = usb.core.find(idProduct=0x0009) print( usb.util.get_string( dev2, dev2.iSerialNumber ) )
Why do some phones have static UID and some do not? Is this chipset related? That depends on the chipset and the implementation of the NFC stack. As far as I’m aware of, there are three different scenarios used by various Android NFC devices: The device has a secure element and uses the static UID … Read more
Taking into consideration that my application targets Android 4.0 (API 14) and above, is the android.os.Build.SERIAL number for the android devices unique for each device ? According to this useful article in the Android Developers blog, android.os.Build.SERIAL should be unique if it is available. From the article: Devices without telephony are required to report a … Read more
You need to populate /sys/class/android_usb/android0/iSerial sysfs file with unique values for every device. Most vendors do it with custom init script, which would read the value from a persistent system property or a regular file and put it in sysfs on every power up.
This is the hardware serial number. To access it on Android Q (>= SDK 29) android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE is required. Only system apps can require this permission. If the calling package is the device or profile owner then the READ_PHONE_STATE permission suffices. Android 8 and later (>= SDK 26) use android.os.Build.getSerial() which requires the dangerous permission READ_PHONE_STATE. … Read more
Ok ! So i’ve found a solution to the problem I was having! On the Nexus 7, when the NFC is turned on, it gets its information from a config file in “/etc/” called “libnfc-brcm-20791b05.conf” Inside of this file there is a parameter called “NFA_DM_START_UP_CFG” By default, it looks like this: NFA_DM_START_UP_CFG={42:CB:01:01:A5:01:01:CA:14:00:00:00:00:0E:C0:D4:01:00:0F:00:00:00:00:C0:C6:2D:00:14:0A:B5:03:01:02:FF:80:01:01:C9:03:03:0F:AB:5B:01:00:B2:04:E8:03:00:00:CF:02:02:08:B1:06:00:20:00:00:00:12:C2:02:01:C8} To edit the … Read more
Are serial numbers of NFC tags truely unique? That depends on the tag product and what you consider truely unique. E.g.: ISO 14443 Type A tags with 4 byte serial numbers: There certainly exist duplicates (mainly because there is no clear scheme to divide the available range of serial numbers among the various manufacturers) and … Read more
TelephonyManager tManager = (TelephonyManager)myActivity.getSystemService(Context.TELEPHONY_SERVICE); String uid = tManager.getDeviceId(); getSystemService is a method from the Activity class. getDeviceID() will return the MDN or MEID of the device depending on which radio the phone uses (GSM or CDMA). Each device MUST return a unique value here (assuming it’s a phone). This should work for any Android device … Read more