[Nook HD, HD+ Q&A, Help & Troubleshooting] nate4059:
link to update barnes&nobles site

http s: // help.barnesandnoble.com/app/answers/detail/a_id/1139/~/nook-hd%2Fhd%2B---software-version-2.2.1

(you'll need to put that url back together I don't have sufficient number of posts to insert links....)

the current download is 2.2.1 - you'll need to download to a computer I use an old windows xp laptop,cause it doesn't have problems recognizing

the usb connection when the nook is plugged into the computer. after the file is downladed from barnes&nobles,

you'll need to hookup to computer with your charging (usb) cable and copy the file

over to the root directory of the nook

as the instructions state, don't rename the file... it won't work..

NOOK HD/HD+ version 2.2.1 update is available as an automatic download to registered NOOK HD/NOOK HD+ devices connected to Wi-Fi (Wi-Fi should be turned ON and connected to a hotspot, and the device should be left in sleep mode).

To get the software update right now, be sure you are connected to a Wi-Fi hotspot, tap the Settings icon in the Status bar at the top of your screen, tap on All Settings, then tap on Device Information, and check to see that your Software version matches the number at the top of this page. If it does not, tap on Software version and then tap on the Check for updates button. Follow any on-screen instructions. Do not turn off your device while it is downloading or installing a software update.

To get the update manually, you can download the software update to your computer at any time and then copy it onto your NOOK HD. Simply follow the steps below.

The process will take about 15 minutes for a manual download (depending on the Internet connection for your computer). You should NOT turn your NOOK off while the new software is being downloaded.

Manual Download Instructions

1. From your computer, click here for the software update file. Select Save and select Desktop as the location.

Do NOT modify or change the downloaded file's name in any way. Do NOT try to open the file.

2. Tap the Settings icon in the Status bar at the top of your screen. Tap on All Settings, then tap on Device Information and make sure your NOOK battery charge is at 20% or more.

3. a) For Windows users: Connect your NOOK to your computer using the USB cable that came with your device. A new drive, named MyNOOK or BNTV400, should show up in My Computer. Open this drive and then open the Internal Storage folder within the drive.

From your computer, drag and drop the downloaded file onto the main directory of the Internal Storage folder. Do NOT open or unzip the file. You should not create a new folder on the NOOK drive or add the file to any other existing folder within Internal Storage.

b) For Mac users: Connect your NOOK to your computer using the USB cable that came with your device. A new, removable drive, named MyNOOK should appear on the desktop or in devices. Open the drive MyNOOK.

From your computer, drag and drop the downloaded file onto the top level of the MyNOOK drive. Do NOT open or unzip the file. You should not create a new folder on the MyNOOK drive or add the file to any other existing folder within the MyNOOK drive.

4. Eject or Safely Remove the NOOK drive after the file transfer is complete, and then disconnect your NOOK from your computer.

5. Your NOOK will automatically recognize the file after a few minutes when it goes into sleep mode, and proceed to install the updates.

6. Please do not turn off your NOOK during the installation process.

7. Once the installation is completed, your NOOK will automatically restart and go to the unlock screen.

8. Tap on the small "n" NOOK symbol that appears in the Status bar for additional information. The software has been successfully updated.

Your NOOK must remain turned on while the update is being installed. Once the software is installed, your NOOK will automatically restart. To verify you have the latest update, tap the Settings icon in the Status bar at the top of your screen, tap on All Settings, then tap on Device Information, and check to see that your Software version number matches the number at the top of this page.

Once the software update is completed, your NOOK will automatically restart. The software update will preserve your personal settings, including your registered account information, content, display settings, and Wi-Fi settings.

worked for me anyhow.....