---
title: "2022-01-11"
slug: "2021-11-19"
updated: 2022-08-02T21:57:48Z
published: 2022-08-02T21:57:48Z
canonical: "ametawiki.ametagroup.com/2021-11-19"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://ametawiki.ametagroup.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 2022-01-11

#### Compatible model:VDP-DH-HAC9522-DW-S2

Dahua model No.: VTH5221DW-S2

#### Release date: 2022-01-11

Please download here:

[General_VTHX421H_MultiLang_SIP_V4.510.0000000.0.R.220111.bin](https://cdn.document360.io/698fbf35-46b1-42c8-9a01-0506761ce4e8/Images/Documentation/General_VTHX421H_MultiLang_SIP_V4.510.0000000.0.R.220111.bin)