I have 1gb kingston microsd
I can help. What is not the problem, is the position of the switch
entirely. With the SD card Face up and the tiny white plastic switch on
the left side, should be slid toward the card edge connector
(the shortest side). I know you may have done this and it still doesn't
work. Here's why, On the opposite side of the SD card from the switch,
there is a tiny "Notch" cut out.
Place a piece of tape, masking, electrical, sometimes transparent will
work. Be very precise in placing the tape over the notch, but not over
the brass connector on the opposite side. Then place it in your card
reader, format it, read and write files to your desire.
This is a little known issue with the design of all SD cards. The notch forces them to work in camera's, MP3 Players, PDA's, etc. that are portable devices, but not in USB card readers or computers with SD reader slots.
The card reader with the SD card has this extra built in feature to
protect copyrights (for some reason on blank cards), and makes it
useless for custom applications. Once you have "Unprotected" the SD
card, installed your files, then remove the tape.
If you get the same error again after applying the tape, add a second
layer. Double check that you did not cover the connection edge, and the
plastic tab is closet to the side you insert in the device you are
Sometimes it takes several tries, but it will work with patience. If you
have existing files on the SD card, insert it, right click, select
properties. Then remove the "Read Only" check by the box and try to
delete or add files then. If it says Disk Write Protected, then check
the tape again.
on Jan 26, 2012