Fix A Permanently Locked SD Card With Scotch Tape

We use SD cards for all sorts of devices these days, but the little lock mechanisms on the sides can break so darn easily. Here’s how to fix an SD card with a broken switch, using nothing but a bit of tape.

Whether the switch on your SD card has completely broken off or whether it’s just flimsy (mine locks itself every time I put it into a slot), it can render a card pretty much useless by making it unwritable. Just like the VCR tapes of yore, however, you can buck the system with a bit of Scotch tape. Just stick it over the switch, and it will trick the reader into thinking the SD card is unlocked. Check out the video above for a demonstration, and let us know in the comments if you’ve been able to salvage any old SD cards this way. Video by cnwaddell.

Discuss

(7 Comments)
  • [–]

    Stephen

    Friday, January 14, 2011 at 12:36 PM

    thats awesome how retro, i can’t believe the same trick used to protect/override video in the 80s still lives so proudly today.

  • [–]

    vik

    Friday, January 14, 2011 at 1:02 PM

    I don’t know exactly what mechanism checks for the present/absence of the write protect notch, but if it’s optical, you might want to choose your tape wisely. Reminds me of a story an old comp-sci professor told us about 5 1/4 (or perhaps it was 8?) inch floppies – the write protect tab was specified as metal, but some manufacturers used a plastic tab. Problem was, the device which checked the notch was IR, and the plastic these manufacturers used was transparent to IR (despite being black in the visible spectrum). Hilarity ensued as thousands of people’s discs were overwritten.

    • [–]

      TrendyTim

      Friday, January 14, 2011 at 4:11 PM

      If its anything like the 3.5″ disk and VHS tapes, it would be a simple dip switch, when the plastic toggle is moved into the write position, on insertion it causes the switch lever to be pushed down. 5.25 and 8s as i recall used a sticker to enable write protect.

  • [–]

    Ron

    Friday, January 14, 2011 at 1:36 PM

    A friend left camera with a shop to print off the SD. Next she was not able take anymore photos etc and shop said new card was needed. I checked and card was Locked. Now how did that happen?

  • [–]

    Stewart Walker

    Friday, January 14, 2011 at 1:50 PM

    I had this issue about a year ago when a switch on an SD card became so loose it would switch to the locked position when I put it into my camera.

    Performed a similar thing, and it works quite well. Only downside is that on some tighter SD Card readers it takes a little extra force to take in and out (especially those spring load readers).

    Would highly recommend, however ask yourself this: Hmmm, I can fix or I can go buy a 16 GB SD card for about $40 dollars.

  • [–]

    Richard

    Friday, January 14, 2011 at 11:48 PM

    Reminds me of the trick of turning low density 3.5-inch(720KB) floppy disks to high density (1440KB) disks by drilling a hole in the right spot on the plastic casing then reformatting.

  • [–]

    Cnwaddell

    Thursday, August 4, 2011 at 7:33 AM

    This was my video here and I was honored to be on this sight unfortunately It was erased from you tube accidentally and all sights with my video have my broken link to video on them.I re uploaded it if you would still go ahead and yous my video here is new link —— http://www.youtube.com/watch?v=-g7dsoHJoTQ

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