六、Upgrade Firmware Instructions - Fnirsi FNB28 User Manual

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六、Upgrade firmware instructions
1、
Open the FNIRSI USB Meter upgrade tool.
2、
When FNB28 is in the shutdown state, press the OK key to access the
HID-USB interface, and it displays the connected, device model, and device
firmware version.
3、
Click OPEN and choose to upgrade the firmware.
13

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