Western Digital Hard Drive Recovery WD2500JB-57GVC0 DCM:DSCHCTJCH (Power Surge)

Hard Drive Recovery Home Page

hard-drive-recovery-example-062007b.htm

Configuration: Lacie external USB 2.0 with 1 Western Digital WD2500JB-57GVC0 DCM: DSCHCTJCH

OS / File System: MAC

Failure: Customer used the incorrect power adapter from a different Lacie external hard drive causing a power overload (over-voltage)

Hard Drive Recovery Procedures

  • step 1: Find an identical PCB.
  • step 2: If swapping the PCB does not work, you can swap the Flash ROM chip on the PCB, unless you get a lightning hit, this chip usually doesn't burn out. The flash chip contains boot information for that particular drive and will make the new PCB compatible.
  • step 3: The flash chip is a surface mount device (SMD) and has only 8 pins. Its fairly easy to replace.
  • step 4: Using a standard soldering iron, to de-solder put ample amount of solder to the pins bridging the gap between the pins, this will ease de-soldering of the chip. Don't worry about too much solder, this will clean up easily after with solder wick.
  • step 5: Once the solder is melted on the pins, carefully remove the chip using tweezers.
  • step 6: Clean the excess solder from the chip using de-soldering wick.
  • step 7: Prepare the destination PCB by removing the flash chip in the same fashion as above.
  • step 8: Clean the PCB from the excess solder using the de-soldering wick.
  • step 9: Place the Flash chip on the new board, solder 1 or 2 pins lightly to hold it in place securely.
  • step 10: Now you can solder the rest of the pins, don't worry about putting too much solder on the pins, just put an ample amount of solder on 1 side bridging the gap creating 1 continuous line of melted solder, don't worry about soldering each pin, this cleans off easily.
  • step 11: Repeat the process for the other 4 pins.
  • step 12: Time to clean up the solder. Hold the PCB vertically so that the pins of the chip are vertical, drag the soldering iron slowly starting at the top pin downward. Surface tension will attract the excess solder to the tip of the soldering iron leaving a nice clean finish on the chip. Repeat if necessary.
  • step 13: Repeat for the other pins and you're done.
  • step 14: Install the new PCB on your hard drive and retreive your data.

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