User manual

Table Of Contents
Getting Started
Number Item Description
11 PTT button Typically used forPush-to-Talkcommunications. Where regulatory
restrictions exist, button is configurable for use with other
applications.
12 Volume up button Increases audio volume.
13 Volume down button Decreases audio volume.
Table 3Device Rear View(Continued)
Setting Up the Device
Set up the device before using it for the first time.
1. Install the nano SIM Card. (ET45 only)
2. Charge the device.
3. Power on the device.
Installing the nano SIM Card
A nano-SIM card slot is available only on ET45 devices.The following steps only apply when installing or
replacing a nano SIM card.
1. Ensure the tablet is powered off.
CAUTION: Do not attempt to remove the battery while the tablet is powered on.
a) Press and hold the Power button until the menu appears.
b) Touch Power off.
2. Lift the corner of the battery cover up (1) from the notched area and carefully remove the battery cover
from the device (2) as shown.
CAUTION: Do not use any tool for battery cover or battery removal. Puncturing the battery
or seal may cause a hazardous condition and a potential risk of injury.
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