sd59230u-hn
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all about SD59230U-HNI
I am a new owener of SD59230U-HNI and never had a Dahua. Question.: I would like to upgrade a firmware that is available here: SD59230U-HNI | Dahua Technology - Dahua Technology however it shows 3 and i am confused which one should i load or load first or how it the upgrade works from the web...