![]() ![]() ![]() Therefore, the safest way is to reset the switch to its factory default before downgrading the firmware. If the firmware is downgraded directly, there might be some configuration lost or other unpredictable behaviors. Reset the switch to the factory default.Īfter the switch has been upgraded to V4.30, user might have implemented new features on the switches, which means the current configuration files might include strings which the previous firmware does not support. If firmware downgrade from V4.30 to V4.10 is necessary, make sure to follow the steps below so that the switch operates normally after rebooting. If the user downgrades the firmware directly, the switch may fail to operate correctly after rebooting.īefore upgrading the device firmware to a newer version, users should back up the configurations. ![]() The CLI command strings may have been changed. Rom block allocation has also been changed.Ģ. A new firmware usually has new features or enhances the main features. Can a switch’s firmware be downgraded from V4.30 to V4.10? Answerįor ZyXEL enterprise switches, firmware downgrade is not supported and it is not recommended to do so.
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