Hi all. I tried doing a simple nandroid backup and installing a new kernel and I got nandroid error 31. I looked it up and found I have to format my SD card from within Android. I have a couple of questions. 1. Won't formatting my SD card complete erase all info on my phone? 2. If so, what do I do to backup or prevent this? 3. How do I format my SD card from within android 4. Is there any other fix? A quick answer would be greatly appreciated. Thank you.