Help this

[yashyash992632]

Why wifi and LTE is working together.

How to disable LTE 

[Anonymous]

Can you share a screenshot?

[yashyash992632]

Screenshot

[Anonymous]

Open settings
Developers option
Turn off Mobile data always active

[yashyash992632]

It is already off.

[yashyash992632]

Now what

[cs-member13]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We acknowledge your query and apologize for the same. We would request you to register your concern in Samsung Members Application. So, our concern team gets back to you as soon as possible.

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Note. please attach the error log file within 15 minutes of the error occurring.

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support