This guide will show the user how to disassemble a Sony Ericsson J22Oi with the intent of removing and replacing the SIM card.
Flip to the back of the phone and locate the black button on the top of the phone.
Firmly hold down the black button on the top of the phone and gently snap off the back cover.
Remove the battery by wedging it out from the back.
With the battery removed, locate the SIM card slot on the lower right side of the back of the phone. Gently slide the SIM card out from the slot.