What happened after I got a new mobile phone? How to solve it?

Because WeChat detects that the original device is not used, in order to prevent funds from being cheated, a verification code will be required. The solution is to delete the digital certificate as follows:

1. Step 1: Open the main interface of WeChat, and then select the "wallet" option, as shown below, and enter the following steps.

2. Step 2: After performing the above operations, select and click the icon in the upper right corner, as shown below, and enter the following steps.

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3. Step 3: After completing the above operations, select and click the "Payment Security" option, as shown in the figure below, and enter the following steps.

4. Step 4: After completing the above operations, select and click the "Digital Certificate" option, as shown in the figure below, and enter the following steps.

5. Step 5: After completing the above operations, click the "Delete Certificate" button, as shown in the following figure. In this way, the problem is solved.