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BiGuard S20 3.26 firmware You can download the firmware from this link: http://www.billion.uk.com/firmware/biguard/BGS20/BGS20_3.26.zip [1] Links: ------ [1] http://www.billion.uk.com/firmware/biguard/BGS20/BGS20_3.26.zip
BiGuard S20 firmware version 3.24v - 13.8 MB.