i try to transfer my file from my n900 to another phone via bluetooth but it didnt transfer.it says that connection error.how should I fix this one?and then since the bluetooth didnt work.i try to transfer it through through microsd inside of my n900.but it says read only file cannot transfer.is there anything wrong on my n900 bluetooth

More info needed, e.g. what's "another phone", software versions, *exact* steps to reproduce (click by click) etc.
Please be specific if you want help. "My car doesn't start, please tell me how to fix via the interwebs" often doesn't work out either, you know.

my n900 has latest firmware version and CSSU stable.and the another phones is a Samsung Galaxy Mini and we know that is an android.i try to transfer a certain file(its a short movie clip) from my device to my friends mobile phone but it says annot be connected.i wonder that my bluetooth got issues.