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Memory card error/card locked

please help. i just got a sansisk 4.0gb memory card for my canon powershot sd600. a message appears saying there's a memory card error and that the card is locked. i have tried locking and unlocking the card, but it doesn't do anything. i also cannot format because that option is blacked out. my other memory card (kinston 256mb) works just fine and have had it for many years now. i do not have a memory card reader either. what can i do?

Fri, 14 Mar 2008 00:20:33 +0000

First thing that comes to mind is that maybe the card is formatted to FAT32, but maybe the SD600 can only read FAT/FAT16 cards. Try plugging the memory card into your computer and see if that's the case. If so, you can format it to the other format with your computer.

Oh wait! Is that a 4GB SD Card? It's probably SDHC, a new standard. The original SD Card standard can only support memory size up to 2GB. I'm wondering if maybe your SD600 isn't compatible with SDHC cards.

Looks like the incompatibility is confirmed here: Will a 4g SDHC card work with my Canon SD600?

Chieh Cheng
Fri, 14 Mar 2008 00:37:35 +0000

i have this exact sane issue so im going to try and buy a lower GB SD card and see if this!!

Sat, 17 Oct 2009 07:43:44 +0000

The problem is quite common. During a file write operation, the card is write-protected to prevent other applications accessing the card.

If the write is interrupted before complete (eg power loss) there will remain a corrupt file on the card, possibly with filesize = 0 bytes, and the card is locked because on an unfinished write operation.

Windows cannot delete or format the card because it is locked.

I have no solution to the problem, but I am searching.

Wed, 20 Oct 2010 22:07:13 +0000

I have a solution! You can remember it! Put password secreat

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Fri, 05 Nov 2010 02:17:49 +0000

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