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Xbox360 Forums => Xbox 360 Hacking Forums => Modchip Development / Research => Topic started by: knnccb on May 04, 2007, 06:53:00 PM

Title: How Does Modchip Works?
Post by: knnccb on May 04, 2007, 06:53:00 PM

First off from what I read a modchip is suppose to emulate the original bios of an xbox but without the digital security checking. So my my question is Bios suppose to be the same thing with Firmware?

Title: How Does Modchip Works?
Post by: KrayzieVanh on May 06, 2007, 11:47:00 AM

The modchip for the XBOX360 overrides the firmware of the DVD drive. It basically tells the DVD drive that the backup is an original game. The XBOX360 bios is untouched. If properly installed the DVD drive firmware is also untouch. When you remove the chip it'll work like it was untouched.

Title: How Does Modchip Works?
Post by: knnccb on May 06, 2007, 06:56:00 PM

so does the chip itself has a bios on it?

Title: How Does Modchip Works?
Post by: LIVE Prophet on May 09, 2007, 09:03:00 PM

Yes, but the correct term in this case is firmware (bios refers to the motherboard).  The chip contains the firmware on it, and depending on which chip you use, the latest ones like Xeno-360 or NME v1.2, they are just "adding" there code to the original firmware of the DVD drive, therefore allowing you to remove the chip without harm if you ever choose to do so.

Title: How Does Modchip Works?
Post by: caster420 on May 10, 2007, 05:53:00 AM

QUOTE(LIVE Prophet @ May 9 2007, 11:03 PM)

Yes, but the correct term in this case is firmware (bios refers to the motherboard).  The chip contains the firmware on it, and depending on which chip you use, the latest ones like Xeno-360 or NME v1.2, they are just "adding" there code to the original firmware of the DVD drive, therefore allowing you to remove the chip without harm if you ever choose to do so.

Not so much 'adding' their code to the original firmware, as that would lead people to believe it actually overwrites the firmware.  When the chip is active and the drive is being asked for the appropriate reponses, the chip sends the modified code to the motherboard.  It is called 'patch on the fly'.

Caster.

Title: How Does Modchip Works?
Post by: LIVE Prophet on May 10, 2007, 08:03:00 PM

Yea, I guess if was going to use the word "add" i should have put temporarily in front? lol, oh well, all I know is its not permanent! (IMG:style_emoticons/default/biggrin.gif)