Newland MT65 Beluga IV User Manual page 59

Troubleshooting
Problem
Type Description
Unresponsive keypad or
Keypad incorrect response to any key
entry.
Charging LED is OFF when
charging.
Noticeably short battery life.
Battery
Fully charged battery is
depleted after the terminal is
switched on.
USB USB communication failure
LCD
No display
Screen
Cannot switch on
System
System halted
51
Possible Cause & Solution
This problem may be caused by unreliable cable connection between
keypad and mainboard or keypad malfunction. Please contact
Newland after-sales service.
Ensure the AC adapter is plugged in properly.
1. Check the battery level. If the battery is almost depleted, recharge it.
2. Replace the battery if it is faulty.
If the battery is faulty, replace it with a new one.
1. Ensure that the USB cable connections are secure.
2. Ensure that there is no contaminant inside the Micro USB port.
3. If the problem still remains, please contact the after-sales service
center.
1. Ensure the terminal is switched on.
2. If the terminal is in sleep mode, press the Power key to wake it up.
3. Check the battery level. If the battery is depleted, recharge it.
4. Ensure that the battery is properly installed.
5. Replace the battery if it is faulty.
6. If the problem still remains, please contact the after-sales service
center.
1. Check the battery level. If the battery is depleted, recharge it.
2. Switch the terminal on after using the included AC adapter to connect it
to a power outlet. If the problem disappears, then continue to charge
the terminal. If the problem remains after charging the terminal for a
while, replace the battery.
1. The problem may be caused by bugs of downloaded apps. Ensure that
only reliable apps are used.
2. The problem may be caused by a sudden or unexpected power loss.
Remove and then reinstall its battery to reset the terminal.