Enable “Unknown Sources” via adb
Getting a Nook SimpleTouch I had to enable the android option Unknown Sources via adb shell… so first connect with usb and make sure adb debugging is on…
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adb pull /data/data/com.android.providers.settings/databases/settings.db
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sqlite3 /path_to_your_folder/settings.db
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update secure set value=”1″ where name=”install_non_market_apps”;
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.quit
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adb push settings.db /data/data/com.android.providers.settings/databases/