4. Press → Next → System Info, press the Update firmware softkey.
5. The instrument displays a message telling you not to remove the USB device or
power off the instrument until the update process is complete. The progress bar of
the screen indicates the update process is in progress.
Note: A firmware update usually takes approximately a minute. Do not remove the
USB memory device during the update process. If you accidentally removed the USB
memory device during the update process, do not power off the instrument. Repeat
the installation process from step 3.
6. Wait until the instrument displays "Firmware upgrade success.", and then it will
reboot automatically.
Note: If the operation complete message is not displayed, do not power off the
instrument. Repeat the installation process from step 2 using a different type of USB
memory device.
7. Remove the USB memory device from the front-panel USB connector.
8. Press → Next → System Info, view the firmware version. Confirm that the
firmware has been updated.
LCD Test
The instrument provides the screen self testing, which can test the LCD screen.
Press → Next → LCD Test to access the screen test interface. Press the Change
softkey to switch the color between red, green, and blue. Observe if the screen has
severe color shift, spot, scuffing, or other defect. Press the last softkey to exit the test.
Key Test
The instrument provides the key self testing, which can test the keys on the front panel.
Press → Next → Key Test to access the key test interface. Each shape on the test
interface represents a front panel key. Press any front panel key, the corresponding shape
on the test interface will turn green. Press the Return softkey to exit the test.
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