I think all drives can be flashed but some Liteons are a lot harder to do than other drives, you can't simply flash them and you have to mess around with the PCB. There isn't a way to find out what drive the 360 has without opening the box and even then you won't be able to tell the exact drive without opening the console.
If you are ok with soldering, you shouldn't have any problems.
Better wait for someone else to comment on this though.
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