hi,
i don't know if you already solved, in any case i had a better look at the system folders of Nook, and it seems to me that the Demo Mode is managed by a dedicated application (/system/app/DemoMode.apk). Baksmaling the source code of this app, it seems that it is activated on any Nook unit after boot, but in case the value of setting "demo_mode" is not set to "on", it just exits without doing anything; on contrary, the demo mode is activated (i.e. the continuous loop through a set of images).
So, to get rid of demo mode is activated, you could launch a script to change the relevant value of the setting "demo_mode", to set it to "off"; and then reboot the Nook:
Code:
echo *************************
echo * Setting Demo-Mode off *
echo *************************
adb shell mount -o rw,remount -t ext2 /dev/block/mmcblk0p5 /system
adb pull /data/data/com.android.providers.settings/databases/settings.db settings.db
sqlite3 settings.db "update secure set value='off' where name='demo_mode';"
adb push settings.db /data/data/com.android.providers.settings/databases/settings.db
del settings.db
Of course, to be able to launch it, you need to have your Nook already rooted, so that ADB is enabled.
The script is inspired from similar scripts present in the batch file "xe-autoroot.bat" from user xboxexpert of this forum. Therefore, in case you still don't have rooted your Nook, i suggest you to use its script to get it (
link to the thread). In this case, you can easily launch the script to disable demo mode from the same folder where you have xe-autoroot.bat, since yu already have all the needed software (sqlite3).
Another possible solution could be just to remove DemoMode.apk from /system/app folder (but i'm not 100% sure this would have side effect).
In any case, not having a demo mode Nook unit, i cannot be sure these methods would work.
Hope this help