same problem again

ok i change my power and eject chip in the front of the xbox and i also took the mother borde out and clean it for the black and grey bubms with a screw driver and i pluged it back in it work fine the 1st few times then it dose the same thing where u press the pwer button it wont turn off or if i unplug it and put it back it gose on by it self right away so wuts my next option and there are no mods on my xbox its one of the 1st ones that came out and worked till 2 weeks go just fine

 

If you had the corrosion, it may have eaten the traces. Do a VERY close search and look for anymore corrosion or damage to the traces that run the front of the board!

It's not always just a matter of cleaning the corrosion off, they may have eaten the traces themselves!