1 Power cannot be Turned On after Connecting Vehicle Diagnostic Socket?
Possible Cause: Check whether the diagnostic port have 12V power supply voltage, whether the connection between diagnostic main cable and connector of main unit is ok, check whether vehicle battery voltage is higher than 10V, whether main cable diagnostic connector have any damage or breakdown, etc.
Solution: Check vehicle system voltage and main cable diagnostic connector.

2 Screen does not Display except Backlight after Startup
Possible Cause: The power connection does not touch well.
Solution: Shut down and repeat pluging/unpluging the power supplier. Start up again after 1 second.

3 Screen Displayed Abnormally After Startup
Possible Cause: SD card does not insert well. SD card program has damaged. Supply voltage is too low.
Solution: Take out SD card and insert again; Download SD card upgrade program: Checking the supply voltage

4 Screen Displayed SD card Cannot Be Detectedafter Startup
Possible Cause: SD Card is dirty with oil, or oxidation, also damage because of incorrect upgrade.
Solution: Wipe SD card in a little alcohol with cotton tipped applicator. Change new SD card.

5 Screen Flickers or Not Enough Bright after Startup
Possible Cause: Vehicle power voltage is not stable or the voltage is too low. The supply is not enough for the main unit.
Solution: Check the battery power and circuit.

6 Cannot Input Data after Opening Soft Keyboard
Possible Cause: Touch screen is not accurate to adjust. The cursor is not in editing location.
Solution: Adjust the touch screen again. Use the touch pen to click the editing part if the cursor is flickering, means it is editing.

7 Screen does not Respond or Responds Wrongly When Touch Stylus Click
Possible Cause: The touch screen need adjustment again(Note: you need to adjust the screen after
SD card upgrade every time).
Solution: The detail information Ref: “3.4.2 Touch Screen Adjustment”

8 The Tested Result cannot be Printed Out or Printed Unclearly
Possible Cause: Lack of print paper. Installed paper is incorrect or reverse.
Solution: Update the high quality heat sensitive paper and take out the paper and install it again.

9 Displayed Authorization Doc.Error, please Contact Dealer When Diagnose
Possible Cause: The SN in SD card and Main Unit are not matched.
Solution: Download the relevant main unit diagnostic program, and make sure the correct software upgrade following the operation instruction.

10 No Hardware Version shown in System info, No SN shown in System active
Possible Cause: Power off suddenly when downloading firmware and lead to lack of program or version.
Solution: Upgrade the program or firmware again.

11 Test Line Failed when Doing Host Self-Test
Possible Cause: Connect to vehicles or other device through main testing cable. Firmware version is too low.
Solution: Use configured power adapter to supply power (The self-test result is inaccurate when using main testing cable to connect vehicle). If test line still failed when using power adapter, users can download program and firmware again.
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