So, you want to unroot/unbrick your AT&T Galaxy Note SGH-i717? You can easily get your Galaxy Note completely back to stock Android 2.3.6. If ICS comes out by the time you read this, you can still use this method then use Samsung Kies or the software update function on the phone to get back to stock ICS.
Step 1. Put your Galaxy Note SGH-i717 into download mode by holding down Volume Down button and Power button. When your screen goes off, keep holding down Volume Down button but let go of Power button.
Step 2. When you see the wa