Unable to send SMS to upgrade ios 14.

Have you ever missed something important because you couldn't send or receive information?

If you can't send or receive information on your iPhone, iPad or iPod touch, here are some solutions.

First try to complete the following steps

1. restart your iPhone, iPad or iPod touch.

2. Check the network connection. To send information in the form of iMessage or MMS, you need to use cellular mobile data or Wi-Fi connection. To send SMS, you need to use a cellular mobile network connection. If you turn on the Wi-Fi calling function, you can send short messages through Wi-Fi.

3. Please ask your operator whether you support the type of information you are trying to send (such as MMS or SMS).

4. if you are trying to send group MMS on iPhone, go to settings > messages, and then turn on "send and receive MMS". If you don't see the option to turn on "Send and Receive MMS" or "Group Info" on the iPhone, your operator may not support this feature.

5. Make sure that you have entered the correct contact phone number or email address.

If you still need help, please find your question below and know what to do next.

If you see a red exclamation mark, the message has not been sent.

If you try to send an email and see a red exclamation mark and a warning that the email has not been delivered, please follow these steps:

1. Check the network connection.

2. Click the red exclamation mark, and then click "Retry".

3. If you still can't send the message, tap the red exclamation mark, and then tap Send via SMS. This may lead to SMS charges. Please contact your operator for more information.

If you see a green information bubble,

If you see a green message bubble instead of a blue message, it means that the message has been sent using SMS/MMS function instead of iMessage. There may be many reasons for this:

The recipient of this message does not have an Apple device.

IMessage on your device or the recipient's device is turned off. To check whether iMessage is turned on on your device, go to Settings > Messages > iMessage.

IMessage on your device or the recipient's device is temporarily unavailable.

If you receive information on one device but not on another.

If you have an iPhone and other iOS devices, such as an iPad, your iMessage settings may be set to use an Apple ID instead of a phone number to receive and send messages. To confirm whether your phone number is set to send and receive messages, go to settings > messages, and then tap send and receive.

If you can't see your phone number, you can associate your iPhone number with your Apple ID, so you can use your phone number to send and receive iMessage. You can also set up message forwarding to send and receive MMS and SMS messages on all Apple devices.

If you don't have an iPhone, you can only use iMessage to send and receive information from other Apple devices through your Apple ID. To use iMessage, go to settings > messages > send and receive, and make sure you're signed in with an Apple ID.

If you encounter problems related to group information

If you have joined the group information conversation, but can't receive the information, please check whether you have left the conversation. Open Messages, and then tap the corresponding group information conversation. If you see the message "You have left the conversation", it means that you have left the conversation or have been deleted from the group information conversation. Only when someone in the group adds you can you rejoin the group information conversation.

You can also start a new group information conversation. The specific operation is as follows:

1. Open Messages and tap the edit icon.

2. Enter the phone number or email address of the contact person.

3. Write a new email, and then click "Send".

If you encounter other problems related to group information, you may need to delete related conversations and start a new one. To delete the Group Information dialog box, follow these steps:

1. Open Messages and locate the conversation you want to delete.

2. Slide the dialog box to the left.

3. Click "Delete".