ok here is why some are not able to use the hard drives in xplorer360, If you are using a non official M$ hard drive it is missing the official partitions for it to work properly. you will need to use a program like hddhacker and use the option to create the partitions or you will have to hex edit the drive like this:
add the missing partition manually starting at byte 0x80000 of your non M$ Drive. You need to make it look like:
58 54 41 46 00 00 00 00 00 00 00 10 00 00 00 01
So, the easy way to do this: open your drive with winhex(
http://www.x-ways.net/winhex.zip ) by pressing F9, select yournon M$ drive, press <ALT>+G, use position 80000 (hexadec) and then edit these 16 bytes starting at 0x80000 to look like above. Save it, restart the xplorer360 Extreme 2 and the FATX error should be gone and you should see 2 partitions now.
This info came from thespecialist a while back when he discovered what xplorer360 is looking for. however your drive will not show the contents of partition 3 because xplorer360 cannot read it. it is not calculating the drive partition correctly without a little modification. I posted a thread a while back here:
http://forums.xbox-s...howtopic=699395 for us to work on it but have been unsuccessful. I can however tell you my progress. I can get the drive detected in xplorer360 and I restored partition 2 successfully thus enabling xbox1 compatibility. Thats about it. I have been using xextool to transfer all my files back and forth.
Sorry for bringing up an old post just realized no one had mentioned what the real reason was for this.