Once the SIM card or SD card tray pops out, gently pull it out. Remove your microSD card from the tray. Insert the SIM card or SD card tray into the phone.

The tray closest to the top is for the microSD card, and remember you can put up to a 32GB microSD card to expand the storage space of your phone.

If your Android phone is running out of storage space, many phones will allow you to insert an SD card, which you can set as the phone's primary storage.

MicroSD cards allow you to store more files locally, but they can be complex. Here's how to use a microSD card on your Android device, if you still can.

This article runs through how to move apps to an SD card in Android, just in case you'd like to free up space on your smartphone for more important things.

Once the SIM card or SD card tray pops out, gently pull it out. Remove your microSD card from the tray. Insert the SIM card or SD card tray into the phone.