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Anritsu FAQs

Why can't I use the Code Loader to upgrade the firmware on my S331 Site Master?
answer
The Code Loader can only be used to upgrade Site Master models that have the capability to upgrade the firmware through the serial port. The S331 uses an Eprom-based firmware which can only be upgraded by an Anritsu Service Center. The models that can not be upgraded with the Code Loader are: 110, 330, S110, S111, S330, S331, S330A with serial number range of 702xxx through 706xxx and S331A with serial number range of 702xxx through 706xxx.

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