Zebra TC77 User Manual

Maintenance and Troubleshooting
225
Device shuts off. Device is inactive. The display turns off after a period of inactivity. Set this
period to 15 seconds, 30 seconds, 1, 2, 5, 10 or 30
minutes.
Battery is depleted. Replace the battery.
Tapping the window
buttons or icons does
not activate the
corresponding
feature.
The device is not
responding.
Reset the device.
A message appears
stating that the device
memory is full.
Too many files stored on
the device.
Delete unused memos and records. If necessary, save
these records on the host computer (or use an SD
card for additional memory).
Too many applications
installed on the device.
Remove user-installed applications on the device to
recover memory. Select > Storage > FREE UP
SPACE > REVIEW RECENT ITEMS. Select the
unused program(s) and tap FREE UP.
The device does not
decode with reading
barcode.
Scanning application is
not loaded.
Load a scanning application on the device or enable
DataWedge. See the system administrator.
Unreadable barcode. Ensure the symbol is not defaced.
Distance between exit
window and barcode is
incorrect.
Place the device within proper scanning range.
device is not programmed
for the barcode.
Program the device to accept the type of barcode
being scanned. Refer to the EMDK or DataWedge
application.
device is not programmed
to generate a beep.
If the device does not beep on a good decode, set the
application to generate a beep on good decode.
Battery is low. If the scanner stops emitting a laser beam upon a
trigger press, check the battery level. When the battery
is low, the scanner shuts off before the device low
battery condition notification. Note: If the scanner is
still not reading symbols, contact the distributor or the
Global Customer Support Center.
The device cannot
find any Bluetooth
devices nearby.
Too far from other
Bluetooth devices.
Move closer to the other Bluetooth device(s), within a
range of 10 meters (32.8 feet).
The Bluetooth device(s)
nearby are not turned on.
Turn on the Bluetooth device(s) to find.
The Bluetooth device(s)
are not in discoverable
mode.
Set the Bluetooth device(s) to discoverable mode. If
needed, refer to the device’s user documentation for
help.
Cannot unlock
device.
User enters incorrect
password.
If the user enters an incorrect password eight times,
the user is requested to enter a code before trying
again.
If the user forgot the password, contact system
administrator.
Table 22 Troubleshooting the device (Continued)
Problem Cause Solution

Zebra TC77 Specifications

General

Display diagonal	4.7 \
Touch technology	Dual-touch
Touchscreen type	Capacitive
Display resolution	1280 x 720 pixels
Flash memory	32 GB
Internal memory	4 GB
Internal memory type	-
Compatible memory cards	MicroSD (TransFlash), SD, SDHC, SDXC
Number of cores	8
Processor family	Snapdragon
Processor frequency	2.2 GHz
Processor manufacturer	Qualcomm
Operating system version	8.1
Operating system installed	Android
Data network	2G, 3G, EDGE, GPRS, HSPA, HSPA+, LTE, UMTS
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Bluetooth version	5.0
GSM bands supported	850, 900, 1800, 1900 MHz
Security algorithms	AES, EAP-TTLS, LEAP, MSCHAPv2, PEAP, TKIP, WEP, WPA, WPA-Enterprise, WPA2, WPA2-Enterprise
Rear camera resolution (numeric)	13 MP
USB 2.0 ports quantity	1
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	-20 - 50 °C
Operating relative humidity (H-H)	5 - 90 %
Battery voltage	3.7 V
Battery capacity	4620 mAh
Certification	WFA (802.11n, WMM-PS, 801.11ac, PMF)
Product color	Black, Silver
Linear (1D) barcodes supported	Code 39
International Protection (IP) code	IP65, IP68
Harmonized System (HS) code	84713000

Weight and Dimensions

Depth	28 mm
Width	84 mm
Height	161 mm
Weight	376 g