XorLoser has now made his second big post on a full release of a working PS3 exploit based on Geohot's rough hack, early XorLoser had posted only the first part the "software", but you still needed some hardware to do the glitching. As rumored early, Xorloser was using an SX28 chip to do the glitching, this chip was famous in the olden days of the first cheap PS2 mods, as alot of chips were based on it, plus our site since had the ICE design, which was free for all to build.
Here is a part of Xorloser posting, you can read it over at his site: http://xorloser.com/?p=175
This post will deal with the hardware required to trigger the PS3 hypervisor memory access exploit. The purpose of the hardware is to stop the PS3 from saving a change to a value that we don’t want changed. The PS3 saves this changed value by writing the value to RAM. Therefore in order to stop it from saving the changed value we need to stop this write from occurring.
The PS3 sends the write command to the RAM over some control lines, so we interfere with these control lines when the write command is sent. The result we want is having the PS3 think it has successfully written the value to RAM, but the RAM didn’t receive the write command due to our interference and so it did not perform the write operation.
The easiest (and moderately safe) way to interfere with these control lines is to ground them. This is done easily enough by connecting a wire between one of the control lines and ground. The tricky part is timing it just right so that it only interferes with the write we want to stop, and not anything that occurs before or after this write. This might be achievable with costly equipment and a lot of work, however geohotz used the simple method of “luck”. This involves repeatedly preparing the situation to best favour the chance of overwriting the correct write command and then continually grounding a control line until either something crashes that shouldn’t or the mark is hit stopping the write operation from occurring. At this point the exploit has been successfully triggered!