ITech IT-M3900B Series User Manual page 213

2. Power on the instrument. At this point, press Shift for several times till
the instrument can detect the system upgrading files in the USB flash
drive.
After the system upgrading files are detected, the interface displays as
follows:
Update Select(xx/yy)
SN: ALL
xx means the number of selected instruments to be upgraded, and yy
means the number of instruments in the parallel network.
3. Select upgrade in whole or in part based on actual needs. Then, press
[Enter].
– SN: ALL
Indicates to upgrade all.
– SN1: xxxxxxxxxxxxxxxxxx
Indicates to upgrade the selected instrument. Rotate the knob to
check the SNs of all instruments in the parallel network; press Right
to select the instrument; and press Right again to deselect the
instrument.
4. Select Yes, and press [Enter].
The system will automatically perform upgrading.
If No is selected, it means to exit upgrading, and the system will di-
rectly enter into the main interface.
5. After the upgrading is completed, you need to restart the instrument
manually.
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Basic Operation
201