You will want to begin with downloading and installing the Configuration utility version 6.05, found here:
https://www.rfideas.com/sites/default/files/2021-03/rfIDEASConfigurationUtility_6.0.5.zip
Once you are connected to the reader, click on the 3 lines at the top right and choose, Help, About. Please see an example here:
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You will then see a Window appear with your full firmware version file, like this example here:
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