USE ithians guide.. dont use the app to uninstall..
Originally Posted by markham
Part 3- Make A NAND Backup (NOT Optional, do this,)
Load HBC, press -HOME-, launch Bootmii
Make a nand backup
Press Power, Power, Power, Reset, Reset (or use gc-controller)
Power = Right, Eject = Left, Reset = Select
Once the backup is complete, exit bootmii to HBC
Backup your Bootmii files to your PC
*DO NOT LOSE THESE FILES*
You gotta have a NAND back up that you store in your computer or a separate sd somewhere. Do NOT proceed any further until you have one.