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Reason: Launch software is encrypted to only work with the correct hardware serial
number. This message means that the software has detected the incorrect hardware serial
number.
Fix: Go to the Download Center and make sure the correct serial number is showing on
the download page. Note if the serial number is correct and you still have the problem
try downloading the software from the Chinese site, the problem could be a temporary
issue with our servers.
11. Issue:
The touch screen does not work
Reason: The screen has lost it's calibration, this can happen if the screen calibration is
entered at start-up and not completed.
Fix: Reboot the unit and enter and complete the screen calibration by following the on
screen instructions. The Hotkey is located directly above the power button
12. Issue:
When I try to calibrate the screen the calibration dot does not respond
to the stylus.
Reason: It takes 3 seconds of holding the stylus onto the calibration dot for the screen to
successfully capture the information it needs
Fix: Hold the stylus on the dot for 3 seconds and it should respond correctly. If not the
screen is not functioning correctly and will need to be repaired.
13. Issue:
The printer sounds like it is working but paper does not come out.
Reason: The printer feed roll lock is not set
Fix: Open the printer cover and make sure the printer feed roll is in the lock position. Any
impact can cause the printer feed lock to disengage.
14. Issue:
The printer paper feeds and the printer sounds like it is printing but
there isn't anything printed on the paper
Reason: The paper the X431 uses is single sided thermal credit card machine paper.
Fix: Remove the paper and reinstall with the shiny side down
15. Issue:
Every time I boot up my X431 it asks me for my contact information.
Reason: The boot up sequence looks to see if there is any contact information on the first
line of the contact information page, if there is not than it displays this page.
Fix:Open the keyboard by touching the keyboard icon on the lower right of the screen
and enter the shop name on the first line and a phone number on the appropriate line and
the contact info screen will not appear anymore. It is best if all the information is entered
in case the unit is lost it can be tracked back to it's rightful owner. The shop name and
phone number will be displayed on all printouts
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