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HIOKI E.E. CORPORATION Copy the firmware update file (pw3390.ver) to the root directory of a CF card or USB memory stick on a PC. Turn on the PW3390 and insert the CF card or USB memory stick in which the firmware update file was copied.
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[SHIFT], [AUTO(U/I)] and [START/STOP] keys are lit. Do not turn off the power while LEDs are lit. If the update is failed, the unit shall be sent to HIOKI to repair and adjust. Figure 4.Update message screen Update is completed in about 1 minute, and LEDs will be turned off.
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