Zte SPRO - Using Power Bank

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Using Power Bank
The Power Bank feature allows you to use Spro to charge other
devices via USB cable, such as your phone.
NOTE:
The projector and Power Bank cannot be enabled at the same
time.
To charge other devices when your Spro is powered on:
1. Connect your Spro to your phone or other devices via a
USB cable (not included).
2. To turn on the Power Bank feature and start the charging,
press and hold the Power Bank Key until the icon
appears in the status bar.
3. When the charging completes, press and hold the Power
Bank Key until the icon disappears to turn off the
Power Bank feature.