maybe you use bootmii v 0.3 , try this ;
Originally Posted by bigoxygen
credit : redia GBAtemp
here is a small application that does it all for you.
it will check the keys.bin and patch it if needed.
it will modify the nand.bin if available
it will also give you the unique console ID contained in the keys.bin
and it write a log file to make sure you can keep track of what has been done.
if the keys.bin is not valid a new one will be created named "keys-fixed.bin" so the original is not modified
the nand.bin IS modified, but only the keys part.. so if you need to revert you simply need to delete this part.
the only thing you need to do is to copy in the application folder
1. the keys.bin.
2. the nand.bin. not mandatory, put it there only if you want to modify it
I hope you find it useful
(no download limit)