[Stock Firmware]Restore Barnes & Nobel Nook Tablet 16G 1.4.0 from SDCard
This is for the Nook Tablet 16Gig version only. Do not use with 8Gig version
Making a magic SDCard which will take you back to stock 1.4.0 is easy!
This method will allow you to restore 1.4.0 firmware onto your Nook Tablet. Personally, I think holding the buttons and halting the device boot 8 times in a row is a bit time consuming. So, here is how you make a "Magic SDCard".
Just follow these 4 easy steps to restore your device to 1.4.0.
Turn on your Nook and observe a factory restoration.
This will initiate Recovery Mode and flash the entire zip. acclaim_update.zip will restore your device to stock firmware and wipe all user data. I will be working on other methods and I believe it is possible to force the device to boot it's entire firmware from Micro SDCard.
Troubleshooting "N" Button is inoperative
Press and hold the Power and "N" Button until the device reboots.
Continue to hold the Power and "N" button until the device reboots 8 times. This will wipe data and restore the "N" button functionality
SDCard method does not work
Ensure you have a Nook Tablet, not a Nook Color (funny as it sounds, this is a big problem)
redownload the acclaim_update.zip
Use the Nook settings menu to format the sdcard
Use a different SDCard
This video will walk you through switching firmware versions, rooting, backing up, and several other techniques
At the risk of sounding clueless..... How will placing a .zip file on a non-bootable card help? What about the signed bootloader issue? Are we assuming the Nook Tablet is not broken to the point it will not boot on it's own?
Part of the boot process checks the SD Card for this exact file (and checks the contents I assume). If it exists, it gets executed. Someone else has already confirmed this works, though we can't yet get it to work for any other firmware (ICS, etc).
It will (I believe) reset it to an out-of-the-box condition. The registration process might pull the update automatically...if you set up wifi. Don't set it up (right away), and you won't have an issue. Go in, root, side-load what you need to block the update, and you should be good to go.
A few painfully obvious noob questions. I have a 16gb sd card installed in my tablet. I have sideloaded numerous apps and they show up on my go launcher. Can I use that sd card to install the download you recommend? I assume you mean download the link you provided to my computer and then side load it to my SD card from the usb port on my computer.
Do I need to port all my side loaded apps from the go launcher onto my computer prior to this installation as the factory reset will wipe out all my third party sideloads?
Sorry for the questions. I'm sure this is obvious to most if not all on here but I learned to use a keyboard with a Underwood manual typewriter in 1957 and I'm just now getting comfortable with windows XP.
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