My phone NOKIA 6300 could not find micro SD card. please what do i do?

hope you still have the receipt (take it back to store and tell them you picked up the wrong card, you need a 2gb) 2 gigs is the max for this cell

Most likely the phone that doesn't read it and the SD card reader can read "SD" cards but not the "SDHC" that a 4G card will be. All SD cards 4G and above are SDHC, and a plain SD card reader will not read this card.
Buy an SDHC reader, and get a smaller (up to 2G) card to use on the older phone that can't read the 4G one. Hope this helps.

Before you insert a micro SD memory card turn the set off first.You dont need to do this maneouver for the Nseries but for some nokia sets memory card isnt recognised untill the set restarts.

try restoring your phone settings to default and then retry selecting yopur ringtones from your micro sd card.

sir your deafaul password may be 12345 or please visit this website http://mastercode.nokiafree.org/

What phone? Check user manual of phone to see if the music has to be in a certain folder on the card. Try reformating the card.

i have come to the conclusion the mgb card itself is corrupted
i put in my nokia 5800 and it says card corrupted
i format card all looks ok
remove from nokia
and put back in again
and card corrupted again,
also 8gb card from my nokia (not the same one)
works in the pixion ok
so im sending back the card

please try deafault code {12345} if this not succes visit this website {http://mastercode.nokiafree.org/}

I having 1 GB micro sd memory card for my mobile nokia 6300 and it is password protected.i have forgotton the password. can u plz solve my problem

i have nokia 6300 handset. it's phone memory is locked. i donno the password? how can i use the phone memory?