Update apps using Azure AD B2C to new redirect b2clogin.com legacy v1 flow

Sadonis, Mike 1 Reputation point

login.microsoftonline.com will be retired on 31 August 2022.
We still use some legacy (V1) Sign In flows in our b2c tenant (we need this legacy flows to support login on some old e-reader devices).
These legacy Sign In flows automatically redirect to login.microsoftonline.com, how can we fix/change this so we can still use these flows after 31 August?
Creating a new (recommended) Sign In flow (V2) is not an option with these devices.

Microsoft Entra External ID
Microsoft Entra External ID
A modern identity solution for securing access to customer, citizen and partner-facing apps and services. It is the converged platform of Azure AD External Identities B2B and B2C. Replaces Azure Active Directory External Identities.
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  1. Alfredo Revilla (MSFT) 26,756 Reputation points

    Hello @Sadonis, Mike , there are no plans to update legacy user flows to support b2login.com or any other newer feature, they've been deprecated. You may try cloning them as custom policies downloading their source code as detailed here.

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