What should I do if my iphone11Pro max can t connect to cellular data?

You can check if there is a problem with your mobile phone network first, and then there may be a bug in the cellular data.

Cellular data is not available, change the network permissions in the settings.

Open iPhone Settings - Cellular Data, scroll down to the app list, view cellular data usage, and turn on cellular data for apps that need to use data.

What should I do if my iPhone XS Max won't surf the internet with cellular data?

Restart your phone or reset your network settings.

If it is a temporary problem, it can generally be solved by restarting the phone. If the restart doesn't work, you can try restoring your iPhone network settings

Open iPhone [Settings] - [General] - [Restore], drag down to find "Reset Network Settings", and tap.

What should I do if my iPhone XS Max won't surf the internet with cellular data?

After restoring, turn cellular data back on to see if you can surf the Internet normally. If you don't have enough credit balance and you won't be able to use mobile data to access the Internet, check whether your phone is down.

If you have enough phone bill, you can install the SIM card into another mobile phone to see if you can surf the Internet and confirm if it is a SIM card problem.

If you can't use cellular data to surf the Internet, and you can't make and receive calls**, and the message "Cellular network update failed", it means that there is a problem with the device modem and you need to contact Apple's official after-sales service.

In this case, you can turn off the phone and then turn it on to see, if it doesn't work, you can find another mobile phone card, take out the original card and install another mobile phone card, if there is a signal, it means that there is a problem with your mobile phone card, and the two situations are not good, then you can only send it to the Apple mobile phone store.

Apple mobile phone cellular network can not go online normally processing guide:

1.Restart your iPhone.

2.Settings-General-Restore above, check the WAP access point profile if there is a suggestion to remove.

3.To reset network settings, tap Settings> General > Restore, then scroll down and tap Reset Network Settings.

4.If you put this SIM card in another mobile phone, whether you can access the Internet, and whether you can go to the Internet when you put other SIM cards in this iPhone, so as to further rule out whether it is a problem with the mobile phone or the SIM card.

5.To reset all settings, tap "Settings> "General" > "Reset", then scroll down and tap "Reset All Settings".

6.If you still can't get online, and confirm that it is a problem with your phone, you can back up your data, turn off Find My iPhone, and then restore your iPhone system.

Apple 12 mobile phone cellular data is turned on and can not be connected to the Internet, hello dear, the operation steps are as follows; 1. Update the system of the mobile phone to the latest mobile phone version of Danshu (Note: Please back up the data before updating the system) 2. Check whether the protective case of the mobile phone is metal, remove all the protective functions of the mobile phone shell3. Check the network of the mobile phone, whether it is in the network of the operator, check whether the network of the operator is normal4, go to the "settings" of the mobile phone, find the "cellular network", and reopen the mobile phone network5. Force close all background applications, restart the mobile phone6, turn on the airplane mode of the mobile phone, Wait for a period of time (about 5 seconds), turn off the phone's airplane mode 7, find the phone's "Settings", find "Restore" in "General", and reset the mobile phone network (Note: This operation will forget all WiFi passwords, network settings and other network information) 8, also find "General" in "Settings", and "Reset all settings" through the "Restore" inside.

The phone will restart, and all apps will revert to the initial deferred data9, change the card again, and see if there is still a network problem10, in the cellular network - enable 4G - select "Data Only", if you count the number of dual SIM iPhones, you need to go to the specific operator to select. I hope my answer is helpful to you, and finally I wish you good health and a happy heart!

It could be a baseband problem, or it could be caused by you not paying the phone bill.