Update: It’s also now possible to upgrade from OS 1.4.0 to B&N NOOK Tablet OS 1.4.1 while rooting the tablet.
The Barnes & Noble NOOK Tablet is designed to let you download and install third party apps from the B&N shop, but shortly after the tablet was released users noticed that they could also install apps from other sources and even install competing app stores such as the Amazon Appstore and Google Android Market.
Then B&N rolled out software version 1.4.1 and suddenly it got harder to sideload apps that didn’t come from the B&N shop. But it’s not impossible.
Xda-developers forum member Indirect noticed that while you can’t simply download and install an Android APK installer on your tablet anymore, you can still use the Android Debug Bridge (adb) utility to push apps from a computer to your tablet.
This will probably only work if you already added support for third party apps and/or rooted the tabletbefore your NOOK was upgraded to OS 1.4.1. While the software update removes root access and kills the simplest methods for sideloading, it doesn’t wipe all of your files and settings.
Using the NOOK Tablet Sideload tools
1. Download Indirect’s latest script from the xda-developers forum.
2. Unzip the files to a folder on your computer. For this tutorial I’m going to pretend you put the files in a directory called c:\sideload\
3. Put the APK installer file you want to load on your tablet in the same directory.
4. Open a command prompt and navigate to that directory.
- On a Windows computer you can do this by opening the start menu and typing “cmd” (without quotes) into the run box.
- Then type “cd /” to get to the root directory.
- Next type “cd sideload” to enter the new directory with your files.
6. Type “adb install name_of_app.apk” and the utility should push the file to your tablet and install it. For instance, to install Titanium Backup, I typed adb install TitaniumBackup_latest.apk”
This method isn’t quite as easy as using the Android Market or Amazon Appstore on your tablet, but it does let you sideload apps on a tablet that’s running OS 1.4.1, even without root access.
If you’d like to downgrade to OS 1.4.0 so that you can root the tablet and install the Android Market, you can do that — but the process involve performing a factory reset so you’ll lose data and settings.
How to Restore to NOOK Tablet 1.4.0
1. Download the NOOK Tablet stock recovery file from AdamOutler’s xda-developers forum thread.
2. Place it on the root directory of a microSD card and plug it into your tablet.
3. Shut down your NOOK Tablet and restart it to restore to factory default condition with OS 1.4.0.
Once you’ve done that, you may want to check out our guides for rooting the tablet and blocking future software updates to make sure you don’t lose root access.
source : http://liliputing.com/2011/12/sideload-apps-on-a-nook-tablet-with-os-1-4-1-no-root-required.html
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