How to Flash a Custom BIOS on a 1.6 OG Xbox with XycloMod - No Modchip Required!

Over 20 years after the 1.6 model of the original Xbox released, Prehistoricman has come through with a legendary new development! This is XycloMod, a set of scripts which allow you to reflash the on-board BIOS on a 1.6 original Xbox with a custom BIOS, something which was thought to be impossible without a TSOP. No softmod or modchip required for this, but soldering skills are still required to wire up a USB to TTL adapter in order to reflash the console via a leftover UART interface.

This video covers how to take apart the Xbox, check your internal Xyclops chip to verify compatibility, install your required wires, and finally installing a custom BIOS directly on the console.

#Xbox #OGXbox #XboxModding

This video has been made with Fair Use in mind and has been created as an educational piece of media.

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Timestamps!

0:00 - Introduction
3:33 - Prerequisites
4:21 - An Important Limitation!
4:59 - XycloMod Options
6:25 - Compatibility Check!
7:00 - Python 3 Setup
9:32 - Console Disassembly
13:48 - Installing XycloMod Wires
20:18 - Preparing the Console for XycloMod
22:06 - Preparing the USB TTL Adapter
22:36 - Dumping System BIOS
26:33 - Custom BIOS Setup
29:33 - Customizing Cerbios
32:50 - Flashing a Custom BIOS
37:22 - Final Steps

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Product Affiliate Links:

Original Xbox Console:
Amazon - http://geni.us/tQUtt9
eBay - https://ebay.us/VgCKjw

CH340 3.3v USB to TTL UART Adapter:
AliExpress - https://s.click.aliexpress.com/e/_oleCgHs
Amazon - https://geni.us/pV58A
eBay - https://ebay.us/nv2Nhx

30 AWG Kynar Wire:
AliExpress - https://s.click.aliexpress.com/e/_AtyWUN
Amazon - https://geni.us/DXP0j
eBay - https://ebay.us/z1VaZF

Video Hardware I Use:
US - https://www.amazon.com/shop/mrmario2011
UK - https://www.amazon.co.uk/shop/mrmario2011

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Downloads & Links!

XycloMod:
https://www.xbox-scene.info/forums/topic/804-xyclomod-flash-the-on-board-bios-on-v16/

XycloMod Scripts:
https://github.com/Prehistoricman/Xbox_SMC/tree/master/Xyclops

Python 3:
https://www.python.org/

MD5 Checker:
https://emn178.github.io/online-tools/md5.html

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

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

7-Zip:
https://www.7-zip.org/

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Social Media & More!

Discord: https://Discord.Me/MrMario2011
Patreon: https://www.patreon.com/MrMario2011
Second Channel: http://www.youtube.com/iPsychozoa
Bluesky: https://bsky.app/profile/mrmario2011.com
Twitter: http://www.twitter.com/MrMario2011
Facebook: http://www.facebook.com/MrMario2011
Instagram: http://www.instagram.com/MrMario2011
Twitch: http://www.twitch.tv/MrMario2011

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Song Information
Artist: pyama
Song: plugged in
Soundcloud: literalbagoftrash
Link: https://soundcloud.com/literalbagoftrash

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Any links specifically listed as affiliate links give me a small monetary kickback at no extra cost to you and no influence on the content.