Sdhc card will not format

My 4gb memory card SD showing 30.1mb and can't formatted it{Transcend}

click start control panel administration tools computer management disk management right click on your usb drive select properties click tools you should see click check now click start two boxes

automatically fix files and scan for and attempt recovery of bad sectors place then a tick in one box then select check now start or you might tick one box then return after its finished the first
then return and tick the second box
you should not do anything while the chkdsk utility is in progress any input may damage this drive

click start click on computer then right click on your usb drive select format
hope this helps you

click start control panel administration tools computer management disk management right click on your 4gb memory card select properties click tools you should see click check now click start two boxes

automatically fix files and scan for and attempt recovery of bad sectors place then a tick in one box then select check now start or you might tick one box then return after its finished the first
then return and tick the second box
you should not do anything while the chkdsk utility is in progress any input may damage this drive

click start click on computer then right click on your 4gb memory card select format
hope this helps you

I assume by "scan disk data card" you actually mean a SanDisk brand card.
Press the [MENU] button. Select Setup (wrench icon). Select "Format memory/Format card" (camera-slash-card icon).
SD and SDHC cards have a slide switch along one edge. The position farthest from the metal contacts locks the card, protecting it from writes. The position nearest the contacts unlocks the card. Make sure the card is unlocked before putting it into the camera.
If you need a manual, you can download one from here. Setup menu instructions begin on page 85, formatting instructions are on page 100.

You haven't told us what kind of camera it is, but I can guess at the problem. There are two possibilities.

1. Your camera will only read SD cards, not SDHC cards. You've just bought a new memory card, not noticing that it was SDHC. The new cards don't work in your camera, not because they or the camera are broken, but because they're not compatible.

Cards up to 2Gb are generally SD. Cards over 8Gb have to be SDHC. 4Gb cards can be either SD or SDHC, but are almost always SDHC because they're cheaper. (I would avoid the rare, expensive, and problematic 4Gb SD cards.)

Your solution is to go find a 2Gb card, and be extra sure that it doesn't say "SDHC" on it. (If it does, it probably means that they made a 4Gb card, but there were some error locations and so they disabled half of it and packaged it as a cheap-brand 2Gb.)

2. You formatted the card NTFS, whereas the camera needs FAT32. You can format the card using Windows, but there is a complication: Windows defaults to "NTFS" when formatting, but memory cards normally use FAT32. Before you attempted this, you should have connect the card, and checked the 'properties' on the drive that appears. It probably said "FAT32". In this case, you could have gone ahead and formatted the card, but be sure that you chose "FAT32" from the drop-down list. If you format it NTFS, your camera won't be able to read it!

In this case your solution would be to format the card again, but using the FAT32 format.

You might find it useful to check your camera on dpreview (dot) com, and see if the memory card type is shown as just SD or SD/SDHC.

The DX6440 works with MMC and SD cards. Your 4GB card is actually an SDHC card. While it fits into the slot, it is electronically incompatible and will not work. You need to use cards 2GB and smaller.

There are several possible causes for "memory card locked", "memory card error", or "no memory card". Some include trying to use a 4GB SDHC card with an older camera made before SDHC format came out. Others include problems with the tiny slide switch on the side of the card, or the electrical contact switch internal to the camera. The problem may also arise from simple formatting problems if the card has never been formatted in the camera (note that this will also erase the card). Troubleshooting tips for this problem may be found at this link. By the way, the Z730 was made before SDHC came out. Only consider 2GB or less standard SD cards. They're very inexpensive these days on Amazon.

There are no 16GB SD cards. A card that size is actually an SDHC card (yours actually sounds like a Micro-SDHC card). SD and SDHC cards fit the same slots, but they are slightly different. Many cameras won't work with the SDHC (high capacity) cards. SDHC is not backwards compatible.

You really don't need a card this size on a still camera. 1Gb is plenty. If you really need more space, you can carry a spare, like people used to take extra films with them on holiday.

I don't know why the 512Mb card is giving you trouble. This might indicate an actual fault.

8MB or 8GB? If it's actually an 8MB card, you'll be able to put maybe two or three pictures on it, so I'll assume it's an 8GB card.

The DX4530 is designed to work with SD cards. Your 8GB card is actually an SDHC card. While SDHC cards will fit into SD devices, there are electronic difference that prevent them from working there. SD cards will work in SDHC devices but not the other way around.

You need to use SD cards, 2GB and smaller.

The Z740 supports only MultiMediaCards & SD Memory Cards. 4GB and larger SD cards are usually SDHC (Secure Digital High Capacity) types - and bear the SDHC mark on the label. These cards are not compatible with this camera. Use only MMC and SD cards. SD cards are 2 GB and under - although *some* 4 GB cards are marked as SD too; these cards may or may not work. If you purchase a 4 GB SD (not SDHC) card, make sure that it can be returned if it doesn't work reliably in your camera.