QUOTE(endorphin2007 @ Sep 11 2008, 04:37 PM)

I got 2 xboxes with 0020 error. 2 questions.
1 - the first has never been fixed and waaranty expired. Do the x-clamp first or heatgun first?
2 - the second had error code 0102 and was fixed with the x-clamp method and worked for a few months and then gave me the E74 and 1022 eror. Heatgunned it which worked for 1 minute and then got the same errors again. Heatgunned it again 1 minute 400C and 4 minutes 550C started it up and now I have have the 0020 error? This box is a pain in the bud. Any suggestions?
For
0020 first check all solder balls under CPU, GPU and all 8 RAM bricks.
Look under the chips from the side and make sure you can see all of them and that they are not flat...
If this is not the case first do the X-Clamp replacement, try my method it takes the chip under even pressure so it might be able to revive even the ones that were x-clamp-fixed already...
If this fails heatgun the CPU->GPU-> RAM area like shown in my heatgunning tutorial.
Afterwards redo the x-clamp fix...
Links are in my signature...