Firmware October 27, 2022 14:35 Updated Please find attached instructions on how to disable firmware updates. Unbranded_DisableFW_M255_M282_M283.pdf 700 KB Download Unbranded_DisableFW_M404_M428_Final (1).pdf 800 KB Download Unbranded_DisableFW_M454_M479.pdf 1 MB Download