This download contains current firmware for the SNAP-PAC-SB2 brain. Current firmware for all SNAP PAC brains and controllers is available in a single download here.

See the SNAP PAC Controllers and Brains Firmware Release Notes (also called a README) document for information on the changes and fixes in the current version of this product's firmware.

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Some EB and SB brains shipped after April 2, 2018 shipped with new flash components, PAC firmware R9.5g (or higher), and new bootloader firmware. Lower versions of firmware are not compatible with these controllers. For instructions on recovering controllers that are accidentally installed with lower versions of firmware, review the SNAP PAC Controllers and Brains Firmware Release Notes document.

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