Samsung’s latest flagship device comes with a major hardware upgrade, and in South Korea, Samsung is pushing USIM. However, reportedly, some users have common issues, including broken calls, messages, and data access, because of USIM.
However, Samsung stated that when you first insert USIM into the newly launched Galaxy S23 Series, things like calls, messages, and data access may be blocked due to the USIM change. You may receive a request for authentication via text message.
If you have not authenticated your device using the URL that was expected to be received on your phone via text message, it could be the reason for the issues you are facing. This might be a simple case of restricted data communication and not an issue with Samsung or any hardware. All major carriers in South Korea, including Korea Telecom and LG Uplus, follow this common policy as per the law of the Korea Information and Communication Promotion Association Information Provider Consent Procedure. When you change your SIM to USIM, call, message and data access may be blocked to re-verify the identity of the holder of the dual SIM (USIM and eSIM).
If you are one of those users who is having problems, then you should check for authentication or authenticate yourself with the help of a self-authentication URL. We have shared an in-depth guide to this. Follow the instructions mentioned below.
How to Verify Your uSIM on Your Galaxy Smartphone
- Contact customer support at the telecommunications company you have contracted with.
- Request that they send you a USIM verification for authentication.
- Connect your device to a network to access the internet using Wi-Fi or a hotspot.
- Open the link in the authentication text message.
- Now you can start with authentication. That’s it!