Can I check the SMS record when I change my mobile phone card from 3g card to 4G card?

Mobile phone cards can be changed from 3g cards to 4G cards to check SMS records.

Query method:

First, open the mobile online business hall website in the browser.

There are two login methods:

1 Enter "mobile phone number and service password", fill in the verification code and click "Login".

If you forget the service password, you can only log in with a dynamic password. Enter the user's "mobile phone number", click "Get password" to view the password received by the mobile phone, then enter it in the box and "log in".

After successfully logging in to the website, click "My Mobile Phone" and select "Detailed List Query".

Click "Get Dynamic Password" on the second authentication page that pops up.

At this time, check the dynamic password received by the user's mobile phone, enter a 6-digit password in the box, and click OK.

There are daily and monthly inquiries. Select Query Time and click OK.

At this time, you can see the past call records, dial-out time and access time. You can also choose to query the record list of calling party and called party separately in the left navigation bar.