Nook Tablet 1.41–How to down to 1.40 and lock auto update

Now you can upgrade your Nook Tablet to the latest version 1.41. After upgrading, you will lost root. Without rooting, you can only download apps from B&N store. If you don’t consider about rooting, just go ahead to 1.41. Otherwise, you can stay at 1.40.

How to down to 1.40 if you already upgraded to 1.41

1. Turn Nook Tablet off and remove the microSD card

2. Download file  acclaim_update.zip, unzip and copy it to microSD

3. Insert this microSD to Nook Tablet and turn your Nook Tablet on

4. Your device will automatically install 1.40

How to lock the automatic update function

1. Install Root Explorer and SQLite Editor (you can find from Market)

2. Run Root Explorer and browse to file devicemanager.db in folder “/data/data/com.bn.devicemanager/databases/devicemanager.db”

3. Open file with SQLite Editor

4. Choose “registry” and find the line “com.bn.device.fota.mode”

5. Find “value” column. Now the value is “auto”

6. Press and hold to the “auto” to display the context menu, then choose “Actions”

7. Choose “Edit Field” and choose “manual”

8. Choose Save