Modchip sst 49LF020 Bios flash

[Nightkid]

Hello guys, hope you are all fine

i am here for some help from you guys in terms of my old xbox from 2003.

It has a modchip see below

Picture from the complete mainboard

As far as i see it runs an old xecuter 2 bios with evolutionX dashboard.

I replaced the capacitor for the clock and the thermal paste already, but i wanted to upgrade the 100GB IDE HDD to a bigger one.

Saw that there is the cerbios bios, which is currently the way to go. I am familiar with modding/flashing consoles, but never did something on the OG xbox.

So my question is, which bios, installer cd ect. i need to flash this xbox.

Also question from my side, i heard that upgrading to an S-ATA makes the xbox sometimes freezing, is that true?
Thank you very much

Edited November 9, 2024 by Nightkid

[Petrolhead]

Hi there.

There are several tutorials here about that.

Cant see much of the modchip (except the flash chip)

There always a risk to upgrade to Cerbios on that chip (could be a shitty China clone, that not allowing it to be upgraded throu the Xbox)

If you have a programmer that could flash those chips, you can always buy a single one and try it out. (Im not an expert on X2's)

About ide2sata, you need an adapter + 80pin cable to get it working. (Never got my boxes to freeze)

[PRince404]

1 hour ago, Petrolhead said:

There always a risk to upgrade to Cerbios on that chip (could be a shitty China clone, that not allowing it to be upgraded throu the Xbox)

If you have a programmer that could flash those chips, you can always buy a single one and try it out. (Im not an expert on X2's)

If we're going that route then I guess a rp2040 would be a better and cheaper solution. 

[Nightkid]

Tried today to flash it using the ogxbox cerbios disc (latest one) and the only one which worked was the evoxFlasher.

But it got stuck at half (erasing) and it was clear, bios got bricked on the modchip.

Need to find now a way how to reflash that chip externally.

[Petrolhead]

1 hour ago, Nightkid said:

Tried today to flash it using the ogxbox cerbios disc (latest one) and the only one which worked was the evoxFlasher.

But it got stuck at half (erasing) and it was clear, bios got bricked on the modchip.

Need to find now a way how to reflash that chip externally.

There is a few ways to flash it, i have a Xgecu flasher, there should be cheaper once to purchase.

You will get it to work (dont feel bad about it) i told you about cheap chinese copies.

I only have pre-flashed SST49LF080A chip XBlast/Cerbios 2.4.2.

[Nightkid]

Thanks for the words, i appreciate it.

I googled the Xgecu flasher, but it is pretty pricey for maybe once in a life using.

Is there some source to get pre flashed cerbios chips?

[Petrolhead]

@PRince404 mentioned something about rp2040 (I have no information about that)

[KaosEngineer]

1 hour ago, Nightkid said:

Thanks for the words, i appreciate it.

I googled the Xgecu flasher, but it is pretty pricey for maybe once in a life using.

Is there some source to get pre flashed cerbios chips?

No; however, there are cheaper programmers available.

Search eBay for the NANO BIOS Programmer. The base model is all you need to reprogram the SST49LF020.

$23.99 + $9.80 shipping from South Korea to the US.   

Nano Bios Programmer for sale | eBay

 

[KaosEngineer]

Install a different modchip.  The RP2040-based modchip is SHALX's ModXO.  It is built around a Raspberry Pi PICO or RP2040 Zero.

For more information on the ModXO, visit Team Resurgent's GitHub repository:

https://github.com/Team-Resurgent/Modxo/

 

[Petrolhead]

Ordered components to make a few now.

Thanks for the info

[Nightkid]

Will get my hands on an openxenium chip, which i can get nearby.

Installing it by myself should be no problem and i can access it then via ethernet and flash the bios then.

[Nightkid]

Received today my openxenium chip and started working on it

removed the old one and installed the new one (did not make pictures after install)

Oh boy was i happy after the install, cerbios installed and could load my old hdd.

The old clone chip went straight into the bin

Edited November 15, 2024 by Nightkid

[Nightkid]

did not want to start a new thread, but i have a little issue since some time.

On 480p via an kaico hdmi adapter, i get some static noise out of the tv speakers, sound like a small air jet.

When i play on 720p soul calibur2 there is no noise, also there is no background noise in the prometheos OS (720p).

In my opinion this could be the hdmi adapter maybe?
Not sure if this is caused by bad capacitors (look fine for me from the top)

Edited November 19, 2024 by Nightkid

[Nightkid]

As i maybe have known, the culprit was the kaico adapter.

Was pretty hard to get the official xbox high def AV box in my region.

But setting this up with new cables worked wonder, crystal clear sound at 480p finally.

[trencherfield]

3 hours ago, Nightkid said:

As i maybe have known, the culprit was the kaico adapter.

Was pretty hard to get the official xbox high def AV box in my region.

But setting this up with new cables worked wonder, crystal clear sound at 480p finally.

A lot to be said for the Official Xbox High Def kit. No interference probs and a picture quality supreme and nearly as good as the internal HDMI HD+ without the grief.