switch to another modem version without recovery

This is actually part of my freeNANDmod for the Samsung Galaxy S I9000. However, I would like to introduce this trick to all Samsung Galaxy SII I9100 users too.The only difference is, for I9000, /dev/block/bml12 is used for holding the modem.bin file, while for I9100, it's /dev/block/mmcblk0p8.In order to do the trick, put a modem file somewhere, say...