Iphone can't surf the internet after putting the mobile card, but it can send text messages and make phone calls. What happened?

Hello, I suggest you investigate from the following aspects.

Step 1: Check the online parameters.

Go to Settings-General-Network and check whether the cellular data switch is turned on. Or there is no capital "e" on the right side of China Mobile LOGO before the call.

Confirm that the APN column of cellular data is "cmnet"

Step 2: Confirm whether there is a "description file".

In actual use, a description file may be automatically installed when installing network-related applications such as bank clients or other third-party VPN tools. Some description files will affect the online function, so it is suggested to delete them.

Step 3: Confirm whether the operator patch is installed.

IPhone jailbreak operation itself will not directly affect the Internet access function of mobile phones, but some users can't access the Internet after jailbreak, and then install operator patches. Even if the operator patch is installed, there is still a problem accessing the Internet.

In this case, it is suggested to delete the relevant patch of the operator, restore the network settings and reset the access point.

Method of restoring network settings: Settings-General-Restore-Restore network settings.

Please understand.