Zebra ET51 User Manual

Maintenance and Troubleshooting
145
Troubleshooting
Table 16 Troubleshooting the tablet
Problem Cause Solution
Tablet does not turn
on.
Battery not charged. Charge the battery in the tablet.
Battery not installed
properly.
Ensure battery is installed properly.
System crash. Perform a soft reset. If the tablet still does not turn on,
perform a hard reset. See Resetting the Device on page
50.
Battery did not charge. Battery failed. Replace battery. If the tablet still does not operate, try a
soft reset, then a hard reset. See Resetting the Device on
page 50.
Tablet removed from
cradle before
charging completed.
Insert the tablet into the cradle and begin charging. The
battery fully charges in approximately four hours.
Ambient temperature
of the cradle is too
warm or too cold.
The ambient temperature must be between 0°C and 40°C
(32°F and 104°F).
Unable to connect to
the wireless network.
SIM card is valid. Ensure that the micro SIM card is valid and workable if
using a mobile network.
Not within range of
network.
Move within the network’s service range and the signal
strength is good.
Tablet is in airplane
mode.
Ensure that tablet is not in Airplane mode.
The multi-touch screen
responds slowly or
improperly.
Finger or screen is
wet.
Ensure that your hands are clean and dry when touching
the screen. Restart the tablet to try again.
Tablet turns itself off. Tablet is inactive. The tablet turns off after a period of inactivity. If the tablet is
running on battery power.
Battery is depleted. Place the tablet in the cradle to re-charge the battery.
The tablet’s battery
is low and it powers
down to protect
memory content.
Place the tablet in a cradle to re-charge the battery.
Screen is not rotating. Screen rotation is
disabled.
Enable screen rotation. See Display Settings on page 26.
Sensors are
disabled.
Sensors are disabled by default. See Interactive Sensor
Technology on page 22 to enable sensors.

Zebra ET51 Specifications

General

HD type	2K Ultra HD
Display diagonal	8.4 \
Touchscreen type	Capacitive
Display brightness	720 cd/m²
Display resolution	2560 x 1600 pixels
Tcase	100 °C
Tjunction	110 °C
Processor cache	2 MB
Processor cores	4
Processor model	x5-E3940
System bus rate	- GT/s
Processor family	Intel Atom®
Processor series	Intel Atom x5 Series
Processor codename	Apollo Lake
Processor frequency	1.6 GHz
Processor cache type	L2
Processor lithography	14 nm
Processor manufacturer	Intel
Processor package size	24 x 31 mm
Number of execution units	12
Processor boost frequency	1.8 GHz
Processor operating modes	64-bit
Thermal Design Power (TDP)	9.5 W
Thermal Monitoring Technologies	Yes
Internal memory	4 GB
Internal memory type	LPDDR4-SDRAM
Storage media	eMMC
Compatible memory cards	MMC
Internal storage capacity	64 GB
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	-20 - 50 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Device type	Mobile tablet
Form factor	Slate
Product color	Black
International Protection (IP) code	IP65
Battery voltage	7.6 V
Battery capacity	3300 mAh
Battery life (max)	- h
Battery technology	Lithium
Rear camera type	Single camera
Video capturing speed	30 fps
Video recording modes	1080p
Maximum video resolution	1920 x 1080 pixels
Rear camera resolution (numeric)	8 MP
Front camera resolution (numeric)	2 MP
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.2
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
Mobile network connection	No
Assisted GPS (A-GPS)	-
Platform	Windows
Operating system installed	Windows 10 IoT Enterprise
Processor ARK ID	96485
Number of built-in speakers	2
HDMI ports quantity	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	1
Harmonized System (HS) code	84713000

Weight and Dimensions

Depth	12.7 mm
Width	228 mm
Height	150 mm
Weight	570 g