Erase and Deregister
Performing an Erase & Deregister on your NOOK GlowLight Plus will delete all settings, including the NOOK account and all files saved on the device memory, as well as any Shelves, Highlights, and Notes that have been created. Once the erase and deregister has completed you will be able to reboot your NOOK as if it were a new device, and sign in to your NOOK account.
To Erase and Deregister your NOOK:
1. Tap Settings
2. Open Device Info
3. Tap Erase & Deregister