Connection problem or invalid mmi code

Turn off auto blocker from settings app. Turn it back on after you're done with your work for your privacy.

Please Turn Auto Blocker From Setting(Security And Privacy But Turn It On After Work Complete Because It Is Important For Your Privacy

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Please go to setting, click security and privacy and click Auto Blocker and turn off Auto Blocker immediately then try to it's again it's works properly also after use this code or any other code again turn on Auto Blocker for your's device security. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your query, we would request you to kindly perform the following steps to resolve your issue.

Disable Auto Blocker:
1. Go to Settings.
2. Select Security and Privacy.
3. Select Auto Blocker.
4. Then turn it Off.

In case the issue still occurs, kindly report the problems with a log file. To share a log file, click on the Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).

Warm Regards,
Samsung Customer Support