Cant move files from internal storage to SD card

[jksprt0]

I bought a p275 micromax funbook infinity. I m facing a problem now. that i have inserted a SD card and i m also able to access its files in my tablet but i m nt able to move any file to it from my internal storage and nt even able to download some files from playstore. Moreover when i use camera it pops up a message that insert an SD card before using the camera

Specs-
Android version- 4.0.4

 

[Phillip Corcoran]

Check if the SD card has a "write protect" switch on the edge of it. If it has, slide the switch the opposite way.

If it doesn't have a switch or sliding it doesn't fix the problem, buy a new card.

 

[jksprt0]

Check if the SD card has a "write protect" switch on the edge of it. If it has, slide the switch the opposite way.

If it doesn't have a switch or sliding it doesn't fix the problem, buy a new card.

Its not write protected and i m able to access the files in SD card through my tablet

 

[Y0GI]

Offload your files from the card onto the tablet and then format the card in your computer using this tool: https://www.sdcard.org/downloads/formatter_4/

Yogi