Originally Posted by dryhte
UMS toggle doesn't seem to be working for me (I'm using the version you (?) posted on Androidforums, I'm guessing that was you since you thanked the guys who've been testing in this thread).
I should add that my sd card is formatted with a swap partition and a normal partition (need the swap partition for GAOSP, performance is abysmal without it)
I'll attach my logs.
with the extra part for swap try this and post feedback in android forums post.
echo /dev/block/mmcblk0p1 > /sys/devices/platform/msm_hsusb/gadget/lun0/file
echo "" > /sys/devices/platform/msm_hsusb/gadget/lun0/file
do you have a p500 or a p509 optimus t?