Cannot upgrade firmware on my USG 20VPN

Chris7000
Chris7000 Posts: 2  Freshman Member
edited April 2021 in Security
Hi all,
I am running firmware 3.30(BDQ.7) but I am not able to upgrade to v4.16 or later.
What can I do to upgrade this router?
The router says firmware not compatible.
Many thanks for any help!

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