Sony TRUINSTALL USB 598 - Manual (Page 22)

USB 598 modem - User Guide
22 2131141
3. Using your fingernail or a thin blunt
object, gently press the microSD card in
and then release; it should partially pop
out of its slot, as shown in the photo.
4. Remove the microSD card and store it in
a safe place.
5. Close the tab over the microSD slot of the modem.