Zte AVID TRIO User Manual And Safety Information page 12

WARNING!
To avoid damage to the phone, do not use any other kind of SIM card, or any non-standard
nano-SIM card cut from a SIM card. You can get a standard nano-SIM card from your service
provider.
This device uses a nano-SIM card only
Hold the microSDHC™ card (not included) with the cut corner oriented as shown and slip it into the
card slot.
NOTE:
Some applications may require a microSDHC™ card to work normally or may store certain data on it.
Therefore, it is recommended that you keep a microSDHC card installed and not remove or replace
it randomly.
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