Interface Icons; Battery - Zte R621 User Manual

release it, while "hold a key" means to press the key for at least two
seconds and then release it.

Interface icons

SIM1_Signal strength
Missed call
Alarm clock set
Outdoor
Battery status
SIM1_New SMS

Battery

The lithium ion battery of the mobile phone can be immediately used
after unpacking.
SIM2_Signal strength
Headset
Silent
General
Meeting
SIM2_New SMS
20