Creating An Xbox Modchip
Posted 06 August 2008 - 05:52 AM
Posted 06 August 2008 - 08:01 AM
Posted 07 August 2008 - 12:10 AM
Posted 07 August 2008 - 11:41 AM
There is a firm that has an universal modchip. You can use it in xbox1, in the ps2, and in a lot of other consoles. You can not only program the flashrom in it, you can also program the pld that makes the interface between the flashrom and the console. I think you can get the sources of that pld code.
The interface is the Intel LPC bus in the xbox1. It has an option to boot from that bus if you pull the D0 wire to gnd.
The cheapmod is basically a flash rom chip with a buildin LPC interface. The chip was used as bios chip on pc motherboards (PIII)
Posted 08 August 2008 - 02:25 AM
What i did was got myself a second hand pc chips 810lmr rev7.1 motherboard it has a 256k 32pin dip flashrom windbond W49F002U-12b, slapped it all together to get into dos with a keyboard and floppy.
first i made sure bios cache was enabled.
got myself uniflash and the bios i wanted on a floppy i used m8plus 256k.
booted to dos and backed up the motherboad bios, then i burned the xbox bios to the flashrom.
I left the pc running while i removed the chip then soldered it into the xbox with a corrupt bios.
flashed the tsop on the xbox then removed the chip stuck it back in the pc and flashed the motherboard bios back.
Posted 12 August 2008 - 10:05 AM
The chip marked with the X and the one that reads backup are probably flash rom chips.
You should be able to read the numbers on those chips if you examine them with a magnifiing glass.
Google those numbers, and you will probably find some pdf's with datasheets of those components.
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