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CAUTION:
Do not try to remove or change the built-in rechargeable battery
in your Spro2 by yourself. By doing so will violate the warranty
policy from ZTE. Contact customer service for support.
1. Plug the AC adapter into the power socket on your Spro2 and
then put the plug into an electrical outlet.
2. Disconnect the adapter when the battery is fully charged.
NOTE:
If the battery is extremely low, you may not be able to power on
Spro2 even when it is charging. Allow Spro2 to charge longer and
try again. Contact the customer service if you still cannot power
on Spro2 after prolonged charging.