A few weeks ago, I installed MenuHax and downgraded my sysNAND using a version of sysUpdater to 9.2.0-20 so that I can get RXTools CFW. I knew that I could have installed A9LH, but I kind of procrastinated and pushed it off because I was scared that I might screw something up when I downgraded all the way to 2.1 to get the OTP. I didn't really know the benefits of A9LH. Now, the CFW that I am using is Luma and it runs on emuNAND 11.0-33 (latest). I decided that I should install A9LH now. But, when I saw the guide, it seems that many changes have been made and I would just like to ask a few questions for clarification: 1.) On the official guide, it says: This concerns me because I do have DSiWare installed (Just a few, including Flipnote Studio). Should I delete these tiles off of sysNAND before proceeding with the downgrade? Also, I have never heard of PlaiSysUpdater, so I assume it is a safer version of the original sysUpdater? If I system format my sysNAND , does this prevent a softbrick? 2.) I am already running an emuNAND. Will the downgrade to 2.1.0 make me lose my emuNAND and all the data on it? Also, the guide refers to RedNAND, but considering the fact that they are practically the same thing, can I pretty much follow the guide by replacing every instance of "RedNAND" to "emuNAND"? If anyone could clarify, that would be much appreciated.