USG 20 VPN

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Jose
Jose Posts: 3
First Comment Friend Collector
image  Freshman Member
edited April 2021 in Security
I have a USG 20 - Firmware 3.30 (BDQ.9) . I need to upgrade but it always say it's invalid. I've tried with 4.20 and 4.16 mas it's de same.
How can I upgrade the firmware?
Thanks

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  • jasailafan
    jasailafan Posts: 193
    5 Answers First Comment Friend Collector Sixth Anniversary
    image  Master Member
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    ZyWALL USG 20 and USG20-VPN are different models.
    The latest firmware for USG 20 is 3.30 (BDQ.9). 
    That's why it is impossible to upgrade USG 20 to 4.20.

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