It turns out that there is a major bug in the leaked ICS kernel that affects the /data partition in the eMMC chip, which apparently gets corrupted during certain operations such as wiping and flashing.
Well, that’s not all for the Note. As it turns out, there’s an issue with some temporary CWM.zip files floating around that can also cause these hard bricks. XDA Elite Recognized Developer Entropy512, who has been on the forefront of preventing further damage to users’ devices, has managed to find the specific problem. There is a string in the binary that’s been shown to be dangerous, and moderators are working currently to get it off of XDA thanks to Entropy512. This only appears to affect the Touch version of the temporary CWM, and no issues have been reported with the standard version.
To help alleviate the confusion, XDA Recognized Contributor dr.ketan has written up a tutorial on how to root the Galaxy Note without the troublesome CWM.zip. There are two methods, one that uses Odin and Triangle Away so that the flash counter gets back to zero and stays there. The second one, which is a little longer, prevents the flash counter from being tripped in the first place. For all intents and purposes, this is the root method that should be followed from now on. Dr.ketan has also been kind enough to include Entropy512′s explanation in the first post so users know exactly what’s going on.
For more details, Entropy512′s explanation, and the new root methods, check out the original thread.