User Manual
XC2907-A Portable Reader
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the battery with wires or other metals, avoid transporting or storing the battery
with necklaces, hairpins or other metal objects;
9. Don't disassemble the battery or cause the battery to short circuit;
10. Don't hit against the battery or hit against the battery with sharp objects.
9.2 Analysis and troubleshooting of common problems
In this section, it introduces how to handle common problems or abnormal
phenomena in the device provided that the users use the XC2907-A portable
reader.
●
What is "restart" and how to implement "restart" operations.
"Restart" is the most common system startup mode in the device, namely, the
system is forced to be powered off and then restart.
By pressing the "RST" button in the lower left corner of the keyboard or long
pressing the "red power button," then the system can be restarted.
●
No backlight
Please check that whether you have clicked the "Backlight Adjustment" button
to the lowest level or not;
Please check whether the "red power button" is pressed.
●
No sound
Please check if the system volume is adjusted to the minimum.
●
It displayed a black screen in the system and nothing occurs when you
click on the screen
Whether it is in the standby state, please short press the "red power button," so
that the system can be started up;
Please check whether the battery is loose.
●
Provided that the power adapter or battery is plugged in, the handset
does not start normally (black screen)
Blank screen:
1. Check whether the power adapter is not inserted tightly or whether the battery
is not installed or contacted appropriately. Perhaps the battery is low and it will
take a few minutes before it is displayed.
9. Daily maintenance and troubleshooting
