Micro USB Does not Power ATV2

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I have vast experience JB'ing every other Apple device so I thought I would try the ATV. After reading, the 2nd Gen seemed the best option at the moment, so I bought a used one off eBay. Following JBing instructions and it says to not connect the power cord when attempting to JB. However, the ATV does not appear to get enough power from the Micro USB cable to allow windows to recognize it. If I connect the power cord and connect the microUSB, windows and iTunes have no problem with it. I have tried literally 7 different Micro USB cables, 2 of which I bought brand new (one from BestBuy and the other from Target). I have also tried connecting the ATV and Micro USB to 2 different computers and every USB port on both computers and it will still not power the ATV2 to perform the JB. I have tried on 1 computer running Win7 64bit and another running Win 8 64bit. Can try on a windows xp 32bit unit if recommended.

Any idea?

Please help.

Thanks!

I didn't find the right solution from the Internet.

References firecore.com/forum/topic/9096

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