POST bootROM failure
Posted on 2003-03-18
when I turn on my PowerBook G3 (Pismo), I get four beeps instead of the usual
startup tone, and then it just sits there. Apparantly this is because of an error
detected during the Power-On Self Test; Apple's site lists it as being a checksum
error for the remaining bootROM.
I'm guessing that the firmware bootROM code has been corrupted, but I have no way
of determining this or fixing it, as the computer will not run. Can I fix this myself,
or do I have to send it in to Apple for service?