If you reset your iPAQ by pushing the recessed reset button at the lower right of the unit, the bootloader will boot PocketPC if present, just as usual.
What is different, is that you can get a serial console onto the iPAQ and that you get the following splash screen:
To get this serial console, configure a terminal emulator as described in Chapter 3.
Then, reboot your iPAQ by pushing the recessed reset button at the lower right of the unit while holding the center of the joypad (you will have to remove the iPAQ from its cradle to access the reset button). Put it back into the cradle and press the space bar into the terminal emulator or press the Calendar button on the iPAQ. You should get bootldr's boot prompt "boot>".
It is now safe to unprotect PocketPC, by typing the following in the terminal emulator:
boot> pflash 0x40000 0xffff 0 addr=00040000 len=0000FFFF protect=00000000 Protect=00000000 boot> |
Bootloader's installation is now complete.