Firmware update broke my original Clamsheel iBook Mac OS 8.6 compatibility.

[Macmaster]

Dear 68KMLA users,

First time poster, long time lurker (10 yrs).

i have a original orange iBook g3 clamshell computer that used to boot to Mac OS 8.6 just fine, yesterday I found out that there is a firmware update available.

I did the update and it broke the Mac OS 8.6 compatibility. whenever I boot to 8.6 it just shuts down right when the desktop loads, even when I boot from the original restore disk witch worked just fine before the update.

mac OS 9 has no trouble booting...

anyone know how to downgrade the firmware?

Thanks!

T

 

[IlikeTech]

You probably can't, sadly.

 

[MrGasS27]

Unfortunately you can't downgrade the firmware, put OS 9.2.2 which is more stable than 8.6

 

[Bolle]

You can desolder the flash chip and put on the old firmware manually... if anyone out there has an image of the old firmware version that is.

 

[Macmaster]

That's just unfortunate! thanks everybody for trying to help me out!

if anyone else has another solution I'd love to know!