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| Click here to select a new forum. | | PowerBook firmware update files | Posted by: MacUp72 on 2022-11-17 02:20:13
Does somebody know on what installation CD the latest firmware upgrades for the PowerBook 1400 are?
I found some on a 9.1 Pismo install CD but these are only for PBs with FireWire (latest 4.1.8. version).
currently I have 77D.32F3.. | Posted by: Romko23 on 2022-12-31 08:54:26
Hi ! You can find this on Macintosh Repository -> Here is the link. https://www.macintoshrepository.org/33955-powerbook-firmware-update-4-1-8. With my Pismo when I buy it, it come already with disc from seller. Sorry my english not so good, but 4.1.8 you can find on link I sent. | Posted by: Snial on 2022-12-31 09:33:11
I'm a bit confused about the question. The PowerBook 1400 was an Old World (and in fact a NuBus Old World) Macintosh. It contained a Masked programmed ROM, not a Flash based ROM. This means the ROM can't be updated. Also, because it's an Old World Mac, there's no Toolbox ROM on the disk. So, there are no firmware updates.
ROM based Macs also didn't need firmware updates, since Mac OS itself effectively updated the ROM by patching the API entry points. On a 68K Mac this was done by patching the 0xA000 and 0xF000 Trap vectors with new code loaded from disk. | Posted by: Romko23 on 2022-12-31 09:47:25
I'm a bit confused about the question. The PowerBook 1400 was an Old World (and in fact a NuBus Old World) Macintosh. It contained a Masked programmed ROM, not a Flash based ROM. This means the ROM can't be updated. Also, because it's an Old World Mac, there's no Toolbox ROM on the disk. So, there are no firmware updates.
ROM based Macs also didn't need firmware updates, since Mac OS itself effectively updated the ROM by patching the API entry points. On a 68K Mac this was done by patching the 0xA000 and 0xF000 Trap vectors with new code loaded from disk. Oh, my bad, sorry.. I am not sure about Old world macs. | | 1 |
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