Installing NOOK Software Updates Automatically through Google Play
If the primary profile user registers their Samsung Galaxy Tab 4 NOOK device to a Gmail / Google account, your NOOK will automatically check for new NOOK software updates and install them through the Google Play Store.
You have the opportunity to set up a Google account during the initial set-up procedure of your device. If you skipped setting up a Google account, then you can set one up at any time by launching Gmail or certain other Google app.
Checking the Version Number of NOOK Software
1. Press the Home button.
2. Touch the Apps tray icon, in the lower right corner of the Home screen.
3. Open the NOOK Settings app.
4. Touch "My account".
5. Verify that the first three digits of the software "Version" number is: 1.2.1.
Checking for Samsung/Android Updates
Occasionally updates to the Android operating system will become available and you will be automatically notified on the device that an update is available. To manually check for software updates:
1. Press the Home button.
2. Tap the Apps tray icon, in the lower right corner of the Home screen.
3. Tap the Settings app.
4. Go to General > About Device > Software Update.
On 2/6/17, a security update was released for the Samsung Galaxy Tab 4 NOOK 10.1".