Not doing so can damage either your phone or the SIM card.
Youll see a small hole thats part of a separate section to the rest of the phone.
The microphone is located on the right, while the SIM tray is on the left.
Youll feel a bit of resistance before the tray pops out a little.
Remove the tray the rest of the way by carefully pulling it out.
With the tray removed, you might now add or remove SIM and SD cards as you like.
If not do NOT force it, you could very easily damage the fragile tray.
Check that all contacts on the card are clean and they are sitting in their respective slots.
If you dont, adding a second SIM simply wont work!
