1. Turn the power on and wait until the home window is displayed. (1) Tap the menu icon to open the menu
window. And (2) tap the right-arrow icon to move the second menu page. And (3) tap the utility icon.
2. (4) Tap the system tab. You can find the version.
1) The power supply was cut off or the USB flash drive was removed during operation.
A complete reinstall is necessary. Perform the operation again from the beginning.
2) The installation cannot be executed and an error message appears in the display.
Check the following:
✓ Is the USB flash drive inserted correctly?
✓ Is the USB connector free from dust or dirt?
✓ Is all required data located in the root directory of USB flash drive?
✓ Is the USB flash drive or the upgrade data itself damaged in some way?
✓ Does the data correspond to the instrument?
Try installing it again by using another USB flash drive.