It displays a card error message when i insert an sd card.help please.

Question edited for clarity.

This is always because people buy modern SD Cards that are far too bit for older cameras. The maximum size for an SD Card is 2GB. Also you must format the card inside the camera.

https://www.manualslib.com/manual/145868/Samsung-Sl202.html?page=86&term=SD+card&selected=1#manual

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you need to go into the settings on the camera and ask it to format

for reliability buy a dedicated micro sd reader as not all the adapters work.
I hope I have been of help but please do not hesitate to ask if you have any further questions.
I appreciate your vote if you appreciate my reply.

Assuming this is a blank card. The card may have to be formatted. This uaually found under menu>tools>format.

Try formatting your SD card by plugging in Laptop's or using a memory card reader. Don't use the cell, after formatting insert in cell and re-format. it will work.

Please check that on your SDHC card that the small lock switch is off.

The problem could be your SD card. Try your SD card on a friends phone. If the same problem occurs, get your SD card repaired. Most SD card companies provide you with unlimited warranty so there should not be a problem.

If there are sd card error, you cannot format your sd card. you may get messages like

"No SD memory card inserted" messages appears when using digital cameras,
"A media card hard been inserted that contains errors. Do you wish to repair the Media Card now?"
You can read the files on SD memory card, but you cannot write new files or you cannot edit files on SD memory card,
"Access denied", when SD card is corrupted or broken,

... ...

... ...

you can fix sd memory card errors first and them format you sd card.

sometimes there are sd card errors make you format failed. you may get messages like

"Unsupported media card inserted, format now?" error in your smart phone,
"Media is not formatted would you like to format now?" error,

... ...

you need to fix sd memory card errors first and them format you sd card.

If you should see the warning message "CARD ERROR" in the LCD Display, please check the following: Always choose reliable quality SD Cards. Toshiba Digital Cameras are tested for maximum performance with Toshiba SD Cards, Delkin SD Cards and Panasonic SD Cards. These are leading brands in the development of standard SD technology. Performance by other brands of SD cards may vary. Check the LOCK switch on the SD Card. The camera can not save images to an SD Card when it is in the lock protected position. If the SD Card is NEW, it may be necessary to FORMAT the card. This only applies to NEW SD Cards. If you format a card with images, all images will be erased. You can FORMAT your card periodically to maximize capacity and erase 'unseen' files, please be sure to download all images before choosing FORMAT as all images will be erased. Your Toshiba Digital Camera is designed for use with SD Cards. MultiMedia Cards are similar in size and shape to SD Cards, although with close inspection you will find that SD Cards have a different 'PIN" connection configuration, are slightly thicker in size, and have a manual slide LOCK switch on the side. Toshiba Digital Cameras are not designed or guaranteed to accept MultiMedia Cards. Please be sure to look for SD Cards from Toshiba, Panasonic and Delkin, the leaders in SD Card Technology.