-break boot sequence during boot loop -configure SWITCH_IGNORE_STARTUP_CFG=1 on switch prompt (switch:) -boot the device with 16.9.x from switch prompt (switch:) -set correct time once the system boots up on 16.9.X -reload the box -configure SWITCH_IGNORE_STARTUP_CFG=0 on switch prompt (switch:) -boot the device with 16.12.x from switch prompt (switch:)