PC-HDW3449H-AS-PV-S3 firmware

B

BelMa

n3wb
Apr 30, 2019
20
18
Spain
I've just installed two PC-HDW3449H-AS-PV-S3 that were supplied with firmware version V2.840.0000000.10.R, Build Date: 2021-09-30.
Looking into the official Dahua firmware page, a new version DH_IPC-HX5XXX-Volt_MultiLang_PN_Stream3_V2.840.0000000.18.R.220629 is available. But after download, the folder contains -apart from the README.txt- three different files:

1669454150645.png

I understand that the file I've to use is the last one DH_IPC_HX5XXX..., but what are the real purpose of the small MCU and 'firmware' files ?
I've read somewhere that the MCU file is related to a specific camera chip, so it should be upgraded also. But the 'firmware.bin' ?
And finally: when multiple firmware files are provided like this case the upgrade must be done in a concrete order or doesn't matter ?
 
HX5XXX-Volt generally does not need to upgrade firmware.bin
If you need to upgrade firmware.bin, it will be after you upgrade the firmware.
Prompt algorithm version does not meet.
At present, I only encounter HX8XXX-Nobel, which must upgrade firmware.bin every time a different firmware is updated, so that the AI event function can be used.
 
Thanks kobebeef.
So firmware.bin update is only required when the device specifically indicates that algorithm version does not meet.
Same with MCU ? Is there any indication that MCU firmware must be also upgraded ?
 
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