Xbox 360 phat not turning on after reflow

Matthew skead

Noob Account
Aug 2, 2020
Newmarket Ontario Canada
hello, so I’m just starting to work on Xbox‘s but I’ve been working and building pcs for 6-7 years now. So today I reflowed the GPU(zephyr mb) due to sec code 0102. then I turned it on and then it said Southbridge Cold solder, so I put no clean flux on the outside of the Hanna chip and reflowed it. I put the mb back in the metal Case and pluged it it and hit the power button and..... nothing. i did look around the board and saw that two of the Front USB solder points were touching each other Aka bridged. I got out my soldering iron and fixed that but still nothing. I do have parts but it’s all xenon. i checked the power socket and it was getting power.

any help would be appreciated!
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