I could try contacting Nokia but they'll probably tell me to take it to a Nokia store and as far as I know, there isn't a Nokia Store anywhere near me, hmmm I'll try getting a replacement back cover
if you took it on contract the network should be able to send you a prepaid envelope for posting it to them. if your still wanting to use your spare magnet try filing it down, or find a thin fridge magnet to cut to size.
same problem here wenever i try to put on mmc it shows nothing in file manager, or dev folder mmcblk stuff, but wenever i put mmc card my phone doesn't boot, i dont understand whts wrong, if has been formatted well on other phone, none memory card working, i did saw that magnet, yeah its fine good, plz help me here plz