I could only get the 0022 I had back then to work with overheating if I remember right but I didnt have to use it that often, sometimes did when the RODs returned I guess.
The overheating is the most stupid thing you can do in my opinion, it is just a bandaid if it doesnt work because of the pressure already this will only make it work temporarily.
If you think you have to overheat it then use a heatgun and reflow the solder properly.
I never used overheating with my method anymore.
If it is a 360 that has been attempted to be fixed like on Ebay(it is unbelievable what people tried to fix it, I even had one that was full of oil, like some thick black stuff or like mainboards that were literally burned
), then I usually heatgun it before just to make sure everything is connected properly...
I also do this in general for 360s that already have the X-Clamps replaced because most retards screw it in so tight that the mainboard bends extremely...
I only fixed like 5 360s or so before that(mainly for mates and family), the error codes were just the usual ones like 0020 0102 and 0022.
The reason why 0022s ,E74s(1022), 0021s and E73s(1021) can be fixed better with this method is simple.
These errors are mainly related to the outer solder balls of the GPU and because of the credit card pieces which take the out side of the chip under pressure as well these are also reconnected.
0022 is a bridged solder joint/E74(1022) cold solder joint under the scaler-chip/GPU traces that lead to it, so the upper part of the GPU.
0021 is a bridged solder joint/E73(1021) cold solder joint under the Southbridge/GPU traces that lead to it, so the left part of the GPU.
0102 is the one that is the easiest to fix, 0020 can be a bit harder to fix(still easier than the other 002*s though) because the solderballs under the GPU/RAM are shorting out then...
Thanks bro! You are the man! Now I know all about these errors more than I used to.
I'm waiting to get another craped box and get it repaired with a hybrid of these methods.