Reply To: Accidentally update the new dashboard 2.0.13604.0 then no longer plays my old backup games Please help!

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twisted247 # Posted on 2011-10-20 at 01:42PM UTC
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How to tell what xbox 360 slim dvd drive you have?

This is not an exact science but its a very good guide. If you want to know if the 360 slim you are looking at is a 9504 or 0225 then follow these suggestions. check your LOT #. Its on the box it came in.

1119X All 1071
1118X All 1071
1123X Mix of 0225 and 0171
1102x All Hitachi 0500
1114X All 0401
11XXX All 0225
104XX Mix of 9504 and 0225. Mostly 0225. High Probability that a 9504 is a mislabeled 0225
103XX Mix of 9504 and 0225 – mostly 9504
102XX All 9504
101XX All 9504
104X All 9504

Another method is by the serial number on the label (thanks to kiwi1hu). The 4th Digital on the end can also give an indication as to what the drive is (again not 100% but results have shown a very high probability – post your LOT# and Serial# results too)

2: 9504
3: 0225
4 or 0: 0500 Hitachi