EchoLife HG850a

Dear Victor! 

The latest HG850a firmware version can be found on the web page provided by Wiassl. If the page cannot be displayed, escalate the permission. 

Note: The account with the download permission is required. If the software or firmware cannot be downloaded, perform the following operations: 

Method 1: You can try to register a Huawei contract number and provide it to Huawei so that Huawei can download the required software. 

Method 2: The ONT used together with the OLT at the central site. The version must match the model. If the version is incorrect, the cannot be used. Therefore, you are advised to confirm the requirements with the supplier or local carrier to obtain the firmware and upgrade or downgrade the firmware under the guidance of professional personnel. Otherwise, the fault cannot be rectified. Exercise caution when performing this operation. 

Thank you! 

Hello,
Please refer to the link below:
https://support.huawei.com/enterprise/en/access-network/echolife-hg850a-pid-18071/software
NOTE:
You need to have a Huawei account and permissions to download the firmware, if you don't have permission, you can ask your provider to support you in downloading it from the Huawei support website.
Thanks