Announced on their site on July 9, 2004, TEAM SMARTXX presents the specifications on July 12, 2004 by revealing tis on its forum....
Smartxx v2 is a chip of 5th generation

To summarize, here modifications of Smartxx v2 :
- hole on the PCB being located under the LCD and being used to regulate the contrast of the LCD when the chip is assembled in pine header
- "recovery switch" to replace by a "longer switch
- just 2 points to weld for the version "quicksolder"
- the green led is replaced by blue (not to confuse with the color of the Eject button)
- new logo under the chip
Smartxx specifies that the v1 and the v2 function perfectly with Xbox v 1.6.
The proof in image (note "Xcalibur" recognized by OS of Smartxx v2).

Thus it does not seem to have a great interest to replace its Smartxx by Smartxx v2 except if you have a screen LCD
For OS, it is the same one as for Smartxx, therefore the tutorial is the same one...
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