My Passport - Head Problem

Hi everybody,

I have My Passport Ultra 10th Anniversary Edition,


look like Head Problem, and I am searching for the same as replacement.

My question here, I need help to can get same H.D … so what is the rules to can find same one;
On the H.D cover there is P/N, S/N.
Inside after I have removed the cover there is S/N, MDL, DCX and DCM …etc.

So, if I have found same Model Number but DCM or DCX different is there a problem

Please advise.

Thanks

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