Hello everyone, as the title says I am not able to make my n900 recognize the SD card or the back cover at all, I already had the magnet problem once and I solved it just by putting a small magnet into the stand again, but now it just doesnt work, before when I had the magnet problem if I placed a rather large magnet close to the cover it would recognize it, but now it doesnt, big or small magnet it doesnt work, any suggestions?
Any help will be really apreciated.

Thanks