Topic: Original Bios Lost? (Read 36 times)

Headly · « **on:** March 07, 2004, 08:22:00 PM »

To start off you probably do not need to reflash your original bios. Unless you have done a bad TSOP flash the original bios should be fine. Since you already asked how to restore the onboard bios(TSOP) I doubt you have corrupted your bios.

A little more info would help diagnose the problem.

When you say "When i attempt to boot it through the OS it restarts"

Do you mean it keeps restarting your original bios with the big green X and the "MS" splash at the bottom?

Does it restart back to the Xenium OS?

Or does it boot once, boot again, and then boot with a flashing light around the eject button?

When you say "When i stick my chip in another box it boots"

Does this mean that you have installed the chip into another xbox and have been able to boot to the MSdashboard using the original bios?

Also what version xbox do you have?

Cotlone · « **Reply #1 on:** March 07, 2004, 08:27:00 PM »

When I say "When i attempt to boot it through the OS it restarts"

I mean it restarts back to the Xenium OS

[When i take the chip out and remove the D0 the box boots once, boots again, and then boots and FRAG with no video output]

When I say "When i stick my chip in another box it boots"

I mean i have installed the chip into another xbox and have been able to boot to the MSdashboard using the original bios.

My Xbox is version 1.0

Headly · « **Reply #2 on:** March 07, 2004, 08:39:00 PM »

More than likely a solder splash on the board somewhere. On the third reboot your eject should be flashing, possibly not. Look at the colors that flash and use these guides here and here from the tutorials section.

Cotlone · « **Reply #3 on:** March 07, 2004, 09:07:00 PM »

Headly · « **Reply #4 on:** March 07, 2004, 09:27:00 PM »

I still doubt that the actual bios have been corupted in some way. The Xenium has no way to access the onboard bios to flash. Even when trying to flash the onboard bios soldering 2 jumper wires(3 for Sharp chips) to the motherboard is neccessary to gain acces to the chip.

Check around the bios chip(chip closest to the Xenium) for solder splashes and look for broken traces around the D0 point.

Also I assume you get the same 3 boot then frag with no chip in your xbox?

Cotlone · « **Reply #5 on:** March 07, 2004, 10:27:00 PM »

Yeah thats the only time it does do it. It boots to the Xenium OS with the chip in - but i cant access the original bios from there

aunixguru · « **Reply #6 on:** March 08, 2004, 08:23:00 AM »

I had the same problem after flashing to 1.1

I ended up reflashing 1.1 until it worked.

Try that.

Took me 4 tries to get it to work.

frank10 · « **Reply #7 on:** March 15, 2004, 08:06:00 PM »

Cotlone, did that fix it?

there is a huge thread of people having similar problems

http://www.ozxodus.c...t=original bios

Cotlone · « **Reply #8 on:** March 15, 2004, 09:27:00 PM »

. But at least it will be able to store a fair bit more [im thinkin of getting 120-160Gb havent worked out my budget]

Thanks for the thread ill be sure to read it all now

Cotlone · « **Reply #9 on:** March 15, 2004, 09:49:00 PM »

At least they were retail drives - but still i gotta fork out for 3 new hdds now

Now this means that im pretty much screwed doesnt it? Is there any working know way of unlocking them? Ive tried a few proposals with ill success.

frank10 · « **Reply #10 on:** March 16, 2004, 12:11:00 PM »

I just don't know. I'm keeping my eye on the other thread to see if there is a fix. A lot of people have a similar problem. I really don't feel like taking apart my box again.

I can still lock and unlock my drive. one possible solution that was suggested was to shorten the d0 wire. however, the installer shortened it without success.

on my system, a v1.0 system, i was able to boot to the orignal bios up until recently. It's possible a wire broke off or something.

arjkar · « **Reply #11 on:** March 16, 2004, 01:36:00 PM »

what do you mean 'flashed' your eeprom? with xenium?

if it was just the hard drive lock u changed, you would get an error on screen, and frag, but not a reboot 3 times frag, check the cables on the ide drives

arjkar · « **Reply #12 on:** March 16, 2004, 01:36:00 PM »

^--oops accidental double--^

Cotlone · « **Reply #13 on:** March 16, 2004, 03:40:00 PM »

Yeah as an unmentioned update {sorry} i get an error and it doesnt reboot three times. The error is an ms service on - number 5/6 i cant remember.

I took the Xenium out of my box and backed it up in another and restored it in mine. Thats why the code is wrong and how i do not have my code any more to unlock the drive.

So the drive needs to be unlocked for i can relock it with Xenium and change its code - i think

Author Topic: Original Bios Lost? (Read 36 times)