OMG!!! So I just had a quite the hell of a time with this 360. It started a few weeks ago when my buddy called me up to tell me that the 360 wasn't glitching anymore. The blue LED would just blink forever, so I told him to bring it over. We opened it up and there was some corrosion on the MB on the ground plane. I figured that something might have been spilled on his 360 and he assured me that nothing had. So first step was to remove the x360pro. Underneath it was quite a bit of corrosion. I'm thinking that it was residual flux that didn't clean off from the alcohol. So I cleaned it all up, soldered the bitch back on, and the thing would just blink the blue LED forever. Then it started acting weird that it wouldn't blink at all. So I hooked my pc up to it to check it the nand image was good or not, and my pc wouldn't detect the chip at all. It was intermittent. Sometimes my pc would detect that USB was plugged in, but would not query it, and other times it would not detect the plug in at all. I fucked with this thing for hours. I finally got it to the point that it would properly detect the USB, but that would not last for long. We finally decided it was best just for him to buy a new modchip.
Fast forward to today. He came over with the new modchip, the same type of modchip. I removed the old one, soldered on the new one, had a few minor hiccups along the way. Once we got everything properly set up, the thing glitched in the first 2 seconds. It was amazing. We fucked with it about 10 different times and the longest it took to glitch the 360 was about 7 seconds. HOLY CRAP!!! The cable to the reset pin of the cpu is only about 2mm shorter than it was with the previous chip. Talk about hitting the perfect sweet spot.
This may have helped a little, but I used leaded solder this time instead of silver bearing solder like I did last time. I hate using leaded solder, but I did not want to fuck around with needing flux for reworking the solder to look nice. Plus, the x360pro already has leaded solder on it anyways.
My buddy is amazed. We thought that we were at a loss with the system because we weren't exactly sure what the issue was. It had always booted into the original mode no problems, just glitching was not working.
I do have to say, the x360pro is one of the most cheapest chinese made products that I've come across. The solder pads lift up with barely any heat. And with this one, as the previous one, THE FUCKING LED'S WERE ON BACKWARDS!!! WTF!!!
I thought I'd share this info with you guys. Thanks again for all your help. I never want to touch a 360 again for the rest of my life. I hate them.