  Hi Zauregypt,
Dear member of SanDisk Community, welcome.
Please, see if it helps, the following link: http://forums.sandisk.com/t5/All-SanDisk-USB-Flash-Drives/Dual-USB-Drive-not-working-with-my-Samsung-Infuse-4G/td-p/332569
Luck, and then you tell us, what happened, please.
Regards, Alfred.                                                          (Google translated)
