UNI-T UT 4000 Series Manual de usuario Pagina 82

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UNI-T
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UT4000 User Manual
Caution : If upgrade fails due to power interruption, power off the oscilloscope and repeat
all the USB upgrade steps.
Below are some common causes for upgrade failure :
1. No upgrade document.
If there is no document with the suffix “uts”, the following message will appear
when [F5] is pressed after powering on : “Can’t find the valid update file! Please
ensure there is update file on the USB device then restart the operation.”
Figure 5-6 No valid upgrade file
2. The user cancels the upgrade process.
(1) When the oscilloscope is restarted with the USB device plugged in, you can
cancel upgrade by pressing [F1]. To cancel upgrade and operate your
oscilloscope normally, follow the on-screen instructions : “Remove the USB
device and reboot.”
Figure 5-7 Cancel upgrade (1)
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