Front-page Hacking Hardware "PeerPressure" (Xbox 360) softmod discussion

Dragon91Nippon · Friday at 3:05 AM

Nadaman said:
The original Xbox has had a cold boot software hack since... checks notes... July 2003. It was literally hacked before I was born.

Or if you mean "custom firmware" in a literal sense (flashing the BIOS of the motherboard itself), this has been known to be possible on most Xboxes for a similar amount of time. Recently, even the 1.6 model's flash ROM inside the proprietary Xyclops IC has been discovered to be flashable through its TTL interface: https://www.xbox-scene.info/forums/topic/804-xyclomod-flash-the-on-board-bios-on-v16/

Wow the 1.6 is flashable? I didn't think that was even possible. I thought it was stored in ROM and couldn't be flashed. That's really cool.

Winduss · Friday at 1:37 PM

AWESOME! My 360 Elite has had a broken disc drive for a few years so I was SOL for a few years. Didn't want to JTAG the poor thing.

SylverReZ · Friday at 5:18 PM

Dragon91Nippon said:
Wow the 1.6 is flashable? I didn't think that was even possible. I thought it was stored in ROM and couldn't be flashed. That's really cool.

Only the A-B01 variant of the Xyclops chip you cannot flash. The A-A02 is supported. Guessing that's some closed weak point by instead removing the ability to write to the chip?

vassilakisdim · Saturday at 2:08 PM

Just installed it. Can PPLoader work with .xex plugins or only .dll

Xyphoseos · 2026-10-11T17:18:30+0100

hi, can i use a hdd instead of the usb stick?

SylverReZ · 2026-10-11T17:21:48+0100

Xyphoseos said:
hi, can i use a hdd instead of the usb stick?

You can only install PeerPressure if you have a FAT32 formatted USB stick. The installation instructions are here: https://github.com/grimdoomer/Xbox360PeerPressure/wiki/Installation

Xyphoseos · 2026-10-11T17:24:40+0100

SylverReZ said:
You can only install PeerPressure if you have a FAT32 formatted USB stick. The installation instructions are here: https://github.com/grimdoomer/Xbox360PeerPressure/wiki/Installation

I mean, formated in fat32 should be good, isnt it ?

SylverReZ · 2026-10-11T17:26:35+0100

Xyphoseos said:
I mean, formated in fat32 should be good, isnt it ?

Yes. 32GB or less is supported, however, larger sizes may need to be formatted with FAT32Format. I'd honestly stick with a 16GB USB which is what I've used.

Xyphoseos · 2026-10-11T17:29:35+0100

SylverReZ said:
Yes. 32GB or less is supported, however, larger sizes may need to be formatted with FAT32Format. I'd honestly stick with a 16GB USB which is what I've used.

I ask that because I dont have usb stick, only hdd that are actually unused. Also if you know, do I need that usb/hdd after the installation or do I need to keep it plugged ?

Blythe93 · 2026-10-11T18:49:23+0100

Xyphoseos said:
I ask that because I dont have usb stick, only hdd that are actually unused. Also if you know, do I need that usb/hdd after the installation or do I need to keep it plugged ?

I haven't checked yet but I think you won't need it after installation.

vassilakisdim · 2026-10-11T20:01:31+0100

For anyone that may care I managed to get PluginUI working on PeerPressure. Here is the link to the required files

raxadian · 2026-10-12T00:55:59+0100

Nadaman said:
if you mean "custom firmware" in a literal sense (flashing the BIOS of the motherboard itself), this has been known to be possible on most Xboxes for a similar amount of time.

Making it so PC like backfired it seems.

SylverReZ · 2026-10-12T13:57:11+0100

Modern Vintage Gamer has recently showcased the PeerPressure exploit.

Front-page Hacking Hardware "PeerPressure" (Xbox 360) softmod discussion

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