Getting Started 1 - 7
Starting the Wearable Terminal
Press the Power button to turn on the wearable terminal. If the wearable terminal does not power on, perform a 
cold boot. See Performing a Cold Boot on page 1-8.
WT4070/90 Boot Up
When the WT4070/90 is powered on for the first time the splash screen appears for a short period of time followed 
by the Start Up window on non-touch configurations and the calibration screen on touch enabled configurations.
Figure 1-6    
Start Up Window App Launcher
Voice Only WT4090 Boot Up
When the Voice Only WT4090 is powered on for the first time the three LEDs on the front housing blink as follows:
Application Controlled LED and Battery Status LED on.
All LEDs off.
Application Controlled LED on, Battery Status LED on, WLAN Status LED on.
WLAN Status LED off, Battery Status LED off, Application Controlled LED off.
The WLAN Status LED blinks indicating that the wireless connection is not connected or is solid indicating that the 
wireless connection is connected.
Checking Battery Status
To check whether the main battery or backup battery in the wearable terminal is charged:
1. Select Start > Settings > Control Panel > Power icon to display the Battery Status window.
2. Press ENTER.
NOTE When a battery is fully inserted in a wearable terminal for the first time, upon the wearable terminal’s first 
power up, the device boots and powers on automatically.
OEM VERSION 02.17.0001
OEM VERSION 03.17.0001
OEM VERSION 04.20.0004 or 
05.30.0000
NOTE To navigate using the keypad refer to the WT4070/90 Wearable Terminal User Guide.