Apple io s8. 13 can't send short messages. Why?

Apple iPhone ios 8. 1.3 can't send text messages for several reasons. Let's introduce it in detail below.

(1) ①SIM card is down or in arrears, etc.

First, this phenomenon will also occur when the SIM card is stopped or owed by the operator.

Second, there is no real-name registration system for SIM cards. SIM cards that have not implemented the real-name registration system will be shut down if they have not registered their real names within the time limit notified by the operator.

Solution: You can bring your ID card to the business hall where the SIM card belongs to register your real name and recharge your phone bill.

② cellular mobile network signal difference.

China's 4G network is still not perfect, and this phenomenon will also occur in places where the signal is not good (the signal is displayed below 3 frames), which makes it impossible to send short messages.

Solution: Where the signal of the 4G network is poor, you can try to shut down the 4G network, and you can send and receive SMS normally after the signal is restored.

The operation of shutting down the 4G network is as follows:

Step 1: Click the "Settings" icon on the desktop.

Step 2: Open the cellular mobile network.

Step 3: Turn off "Enable 4G".

③ There is an error in the network settings of ③iPhone.

When the iPhone's network settings are wrong, it will also be unable to connect to the cellular mobile network, resulting in the inability to send and receive short messages normally.

Solution: You can try to restore the network settings.

Operation:

1. Click "Settings" on the main interface of the machine.

2. Open "General" in the "Settings" interface and select "Restore"

3. Select "Restore Network Settings".