Technical Support
B.1 Basic troubleshooting
MD-34A
Operating Instructions, 08/2023, A5E52427535-AA
95
The GPS application cannot find my location.
• Make sure that GPS is switched on in HotTab.
• Make sure that the GPS receiver and location sensor have
been enabled in the control panel.
• The tablet may be outside the reception range. Move the
tablet into the open or closer to a window.
• Check whether microwave ovens, cordless phones, or
similar devices are causing interference in your vicinity.
Move the tablet away from interference-causing devices.
• Adjust the volume on the tablet by pressing the volume
rocker.
• When using an external audio device, make sure that the
cable has been connected correctly.
I cannot project the tablet display onto another screen.
• Make sure that the VGA driver is installed.
• Make sure that the selected output setting is correct.
The barcode reader is not emitting a laser beam and doesn't
appear to be working.
• Make sure that the barcode reader has been switched on
in the HotTab service program.
The barcode reader is emitting a laser beam but does not
read the barcode presented to it.
• Change the distance between the barcode reader of the
device and the barcode to be scanned.
• Make sure that the barcode type has been enabled on
the tablet. To learn how to enable or disable a specific
barcode type, read the "Configuration of the barcode
reader" section.
I have a problem with the GPS accuracy.
• When the GPS function is used, we recommend disabling
the barcode reader in HotTab to reduce interference.
Battery is leaking or swollen
• The lithium battery used in this tablet can swell after
many charges/discharges, but this does not pose a safety
problem.
• Continued use in this state may lead to the battery be-
coming jammed. For this reason, you should no longer
use the battery and purchase a new one.
No display in BIOS with Micro-HDMI when using external
monitor
Hook up display cable before power on the machine, and
then press F2 right after power on MD-34A.
No display when Linux booting
Hook up display cable after OS loaded
The system is unexceptional hang issue
1. Click reset button to reset CPU registers.
The system shuts down, power up the system, a message
shows “CMOS Battery is missed! “
2. Perform either of the following steps
– Press F1 to enter the recovery mode.
– Press F2 to go to the BIOS Front Page. After pressing
“Continue” in BIOS Front Page, you can go to current
operating system.
– If an external keyboard is connected, press any key to
enter OS.
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