Micro sd 2 gb not working in my phone

I would say that you need to format your memory card,
If you have a PC (judging from the fact that you are posting on this forum then i would say you do) get a SD card reader from a local electronic store and plug it in to your pc and format it that way.
I hope this helps. Failing that then cut your losses and buy a new one.

hello Maleyha,
in many cases formatting the m.card in the m.card reader wont help that much...... so better try formattin it in some nokia smartphones.....it wil surely work