ZLD V4.62 WK02 Firmware release
Zyxel Employee
WARNING.
READ ME FIRST!
You may encounter device freeze, after upgrading firmware to 4.62WK02, IF YOUR CURRENT RUNNING FIRMWARE VERSION IS:
ZLD4.39C0/WK32
ZLD4.38WK26/WK30
ZLD4.55WK26/30
The Symptom:
The firmware listed above is subject to a bug, that when FQDN object is created and used in the system configuration, then the device will hang after upgrading firmware to any newer version. However, if your device’s running firmware version is not listed above, then your device is immune from this symptom.
Resolution:
Power cycle the device (power off the device completely, then power on the device).
Remarks:
1. Please be reminded that to power cycle a device, you must have physical access to that device. You may need an on-site visit if the device is installed in a remote place.
2. Please do backup your device configuration before upgrading firmware.
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3. Before powering off your device, it is strongly recommended to conduct the following prerequisites: Connecting the console cable. Waiting for the firmware upgrade in progress, until you see the message from the console “Restarting system”.
Never power off your device before you seeing this message, or you
might encounter unexpected result e.g. file system corruption.
(1) The console session displays “Firmware received” after the FTP file transfer is complete. Then you need to wait while the ZyWALL/USG recovers the firmware (this may take up to 4 minutes).
(2) The message here might be “ZLD-current received”. Actually, it is equivalent to “Firmware received”.
(3) The console session displays “done” when the firmware recovery is complete. Then the ZyWALL/USG automatically restarts.
Note: These patches include current hotfixes but they are not formally released firmware, it is not a “MUST” to upgrade to the hotfix versions if your device is operating normally.
USG flex series (Release date: Jan. 21th, 2021)
Model Firmware ID Download link
Flex-700 ABWD Download
Flex-500 ABUJ Download
Flex-200 ABUI Download
Flex-100 ABUH Download
Flex-100W ABWC Download
ATP series (Release date: Jan. 21th, 2021)
Model Firmware ID Download link
ATP-800 ABIQ Download
ATP-700 ABTJ Download
ATP-500 ABFU Download
ATP-200 ABFW Download
ATP-100 ABPS Download
ATP-100W ABRW Download
ZyWall USG series (Release date: Jan. 21th, 2021)
Model Firmware ID Download link
USG-2200 ABAE Download
USG-1900 AAPL Download
USG-1100 AAPK Download
USG-310 AAPJ Download
USG-210 AAPI Download
USG-110 AAPH Download
USG-60 AAKY Download
USG-60W AAKZ Download
USG-40 AALA Download
USG-40W AALB Download
USG-20 VPN ABAQ Download
USG-20W VPN ABAR Download
ZyWall-110 AAAA Download
ZyWall-310 AAAB Download
ZyWall-1100 AAAC Download
VPN series (Release date: Jan. 21th, 2021)
Model Firmware ID Download link
VPN50 ABHL Download
VPN100 ABFV Download
VPN300 ABFC Download
VPN1000 ABIP Download
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