"Petert" wrote in message
...
Can anyone please advise what is the largest micro sd card that will
work in a Nokia 6300? I understand that micro sd cards over 2gb are
formatted differently and that they will not work in all mobile
phones.

http://www.mymemory.co.uk/memory-selector has a good memory selector and
tells you the maximum amount individual mobiles can take. Yours is 2Gb.