Author Topic: Rom In C3100?  (Read 2946 times)

GadgetGuy

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Rom In C3100?
« on: September 09, 2005, 10:16:38 am »
Hello all,

On the OpenBSD forum somebody wrote, that it is close to impossible to really brick the C3100, as the emergency bootloader/service menu is in small (true) ROM, and therefore cannot be removed / flashed over.

This would be quite encouraging, since I would not need to worry about risking my C3100 when I try to flash an alternative OS.

The question obviously is: can somebody else confirm this?

Thanks,

Miklos
« Last Edit: September 09, 2005, 10:20:19 am by GadgetGuy »
Zaurus C-3100 from PriceJapan with OZ 3.5.4.1. Opie and GPE
Ambicom CF WL1100C Wifi Card and Symbol Wireless Networker CF Wifi Card
1 GB Sandisk Ultra II SD
PdAir leather case - Nintendo DS metal case
various smaller CF and SD cards
all kinds of USB cables and accessories
-------------------------------------------------------------
Previous computers: TI 99/4A, ZX81, C64, Amiga 500, Apple Powerbook 100
Previous PDA's: Palm 1000, Palm III, Palm V, Palm Vx, Audiovox Maestro Pocket PC, Psion 5mx
Current PDA: Palm Tungsten E2
Current favourite: Zaurus C3100 - my "micro laptop"

obscurite

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Rom In C3100?
« Reply #1 on: September 09, 2005, 05:10:55 pm »
As long as you don't overwrite the rom with a NAND restore you can always reset your c3100 and boot into linux single user mode (b + d held down until login prompt comes up). To reset, remove power + battery for 60 seconds (maybe less, but 60 seconds works for me).

I had to do this myself several times during the OpenBSD install, and when my CF card caused the OpenBSD booter to not work (due to the linux boot process, supposedly).

You are safe... worst comes to worst you can always get into single user mode. Of course, if you run the OpenBSD installer, you will lose the contents of your hard drive, but if you don't care about that (don't need the japanese applications), then go ahead. There are replacements available to restore your c3100, but obviously not all applications will be restored.
C3100, 5500, former C860 owner

martinbogo

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Rom In C3100?
« Reply #2 on: September 10, 2005, 02:05:47 am »
Before you get lulled into a false sense of security... you CAN brick the unit if you accidentally use the NAND ERASE function of the service menu.  

NAND ERASE == BAAAAAAD

That said, only an attempt at a NAND restore would ever get you into that situation.  (With the whole <D><M> boot procedure and all)

-Martin