How to activate a child's electronic social security card on a mobile phone?

The specific steps to activate the social security card are as follows:

1. Open WeChat, click "I" to enter the payment interface, and select "City Service" in the life service.

2. In the "City Services" interface, select "Common Services" and click "Electronic Social Security Card".

3. Click "Add", enter the payment password, and complete the account identity security verification (verifying the child's identity information).

4. Click "Activate" on the authorization page to confirm the identity information, and click "Authorization Activation" to activate the electronic social security card.