Question about Seagate FreeAgent Pro - 500GB, 7200 RPM, USB 2.0, eSATA, External 500 GB Hard Drive

1 Answer

The usb connector on my 500 gb seagate mseries is broken however i noticed that i can remove a plate on the bottom and replace the part my question is where can i get this part

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  • astyndall Jan 25, 2009

    I have the same issue.

    REF: Seagate Free Agent Pro 500gb
    p/n: 9NL6A6-500
    with USB eSATA mSeries output card
    p/n: 100453518

    internal drive should be a 3.5 desktop hdd
    So we have 4 options...

    1- find the USB eSATA p/n:100453518 order it and pay shipping on a part that we already know will break easily ...

    2- buy a 3rd party 3.5 sata/usb drive enclosure / crack the seagate enclosure open and put the hdd in new enclosure.

    3- buy a sata to usb2.0 cable adaptor and use the sata out on the seagate untill it eventually breaks like the usb plug ... you should think about the possibility of the disslodged usb plug shorting out or damaging contact surfaces inside the output card... so if you can extract it with a pair of tweezers or forcepts to alleviate that concern.

    4- throw seagate 500gb drive away and buy a new one.. loose all data... spend more money

    I'm going with option 2
    - after opening usb eSata card (difficult but can be done by scoring glued edges with a razor knife until glue seam is penetrated... you will find that the solder joints for the usb plug are very small... so unless you have a 3M Work Station and the tool set for thhis type of solder operation...don't bother.
    - under usb eSTA card slot you will see no screws visible.. remove the 4 rubber feet on undercarraige to reveal 4 screws- remove
    - next you will find the power sup. and sata enclosure output card
    (p/n: 78S67597)- first remove 2 visible screws on the outter metal cover- remove cover, next remove 2 screws holding card in place - remove card and un-plug all 4 connectors and remove card..
    - now you will see the 3 base plate screws.. romove these

    -- now you should be down to just the vertical case without the stand (base plate)

    - pry open the case.. it will take some elbow grease and some cursing wont hurt but the extraterrestrial glue and plastic clips will give (and hopefully not break.. but if you're this far you shouldn't care about the structual integrity of the case anymore.

    - pull out the metal hdd case and set aside the plastic fantastic.

    - remove (and keep) COMAX dongle...

    - on the sides of the metal case you will see 4 rubber feet/spacers.. pull them off to reveal 4 more screws (13 screw thus far) save these 4 screws!


    - slide metal casing sideways to reveal a Seagate Barracuda 7200.10 rpm 500gb 3.5 desktop hdd

    Istall this drive in you favorite tower or newly acquirred 3.5 hdd USB external enclosure!!!

    ***put metal casing back on drive with the 4 screws you saved and re-plug in the dongle to keep dust off for safe keeping until drive is reinstalled in proper working enclosure or Desktop****



  • nicolasileso
    nicolasileso Dec 07, 2012

    Did the same thing than you, take it appart and plug it directly to the computer. Best way to solve the issue and free.

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There are 2 other solutions to this problem.
First way is to find someone that has the other module P/N 100452909 Dual FireWire 400 and use FireWire instead.
Second is to pry open the USB module and have the USB connector re-soldered or replaced. The connector is similar to many of the smart phones, so a cell phone repair shop could probably replace it. Heck you might even have the connector replaced with the newer Micro USB connector or ask them to solder the USB wire direct to the interface board.

Posted on Sep 15, 2010

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