How to Update the Operating System on Your NOOK Tablet
The NOOK Tablet software may change because B&N needs to fix problems, or it wants to add new features. In most cases, the updates automatically get put on the tablet when you connect over WiFi to the Barnes & Noble website. Therefore, it is important to visit the bookseller’s online presence now and then to stay up to date.
Updating the NOOK Tablet’s software should take only a few minutes and doesn’t affect your Library or your Keep Reading list, and an update doesn’t change the device registration to your Barnes & Noble account.
A small green ∩ symbol appears in the far left of the status bar when a new software release is available; tap the symbol to learn details about the release.
There may be some situations where a major upgrade will require a different process (such as downloading a file to your personal computer and then bringing it across to the NOOK Tablet on the USB cable). Be sure to read and follow any instructions that appear on the screen of your reader or in e-mail communications you may receive.