I8552 uses sim2 to make phone calls and send short messages. How could it be a short message dialed or sent by 1 card?

According to your description, if you want to use SIM card 1 or SIM card 2 more conveniently when making calls, please follow the following steps:

First, set the mobile phone to dual card dual standby mode. 1. Click the application under the standby page, and then select the setting option.

2. Click Connect, and then click SIM Card Manager.

3. Click the icon of SIM card 1, and the check will be activated.

4. Click the icon of SIM card 2 and check Activate.

Second, the specific operation of dialing:

1. Under the standby page, click the mobile phone icon.

2. After entering the dialing page, enter the phone number you want to dial. To dial using SIM card 1, click the icon of SIM card 1.

Tip: If you want to make a call with SIM card 2, just click the SIM card 2 icon.

Third, the specific operation of making a phone call in the contact information:

1. Under the standby page, click the contact icon.

2. Click a contact.

3. After entering the contact details, click the dial icon.

4. To dial with SIM card 1, just click the icon of SIM card 1.

Tip: If you want to make a call with SIM card 2, just click the SIM card 2 icon.

If you have any comments, suggestions and comments, please click: support.samsung.com.cn/survey.