Diags (iBoot command)

This was an exploit in pre 2.0 versions of iBoot

Credit
The dev team

Exploit
This is a very simple exploit. In earlier iBoots, if a parameter was given to the 'diags' command, then it would jump to whatever address argv[1] specified, but not before disabling the GPIO devices. You can run unsigned code on the s5l using this, but the GPIOs need to be restored if you intend to use any I/O again (such as the screen or serial or USB).

In 2.0 iBoots, they check the permission register for this command, so the exploit doesn't work.