Joke Collection Website - Public benefit messages - How do Xiaomi 10 dual sim cards check which is the main card?

How do Xiaomi 10 dual sim cards check which is the main card?

You can refer to the following steps:

Tool: Xiaomi 10.

System: MIUI 12.

1. First, click the open phone dial key.

2. Then enter * # * # 4636 # * # *

3. After input, it will automatically jump to the test page.

4. Now most mobile phones are dual-cards, so there will be two options: mobile phone information 1 and 2. Now click to open a mobile phone message.

5. If the phone has a card slot and no SIM card, it's nothing to open the phone information.

6. Finally, you can see the IMSI (International Mobile Subscriber Identity) of the sim card of the mobile phone.