CipherLab 1660 User Manual page 148

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4) Run the download utility "ProLoad.exe" or "Download.exe" on your computer.
(Download.exe requires version 2.3 or later!)
Open the firmware update "*.shx", and select the correct COM port.
Baud rate
Data bit
Parity
Flow control
5) The scanner will automatically restart itself when upgrading firmware is completed
successfully.
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