How to open it without SMS reminder?

If you mean the SMS reminder of the bank card.

First of all, most banks have SMS reminders for large accounts, which do not need to be opened.

If you also want to receive SMS reminders from small accounts.

You need to bring your own bank card and your own documents.

Go to the bank counter to sign the contract.

Usually, banks will remind small accounts by SMS.

This is a charge. So you need to sign the contract yourself.