Please can you provide the error message you're getting when you try to send voice memos?
In the meantime, there could be several reasons why you might be unable to send voice memos on iMessage. Here are a few possible solutions that you can try:
- Make sure that you have an active internet connection. Voice memos are sent over the internet, so you need a stable internet connection in order to send them.
- Check to see if the recipient has an active internet connection and uses iMessage. If the recipient does not have an active internet connection or use iMessage, the voice memo will not be delivered.
- Restart your iPhone. Sometimes a simple restart can fix issues with iMessage. To restart your iPhone, press and hold the power button until the "Slide to Power Off" slider appears. Slide the slider to turn off your iPhone, and then press and hold the power button again to turn it back on.
- Make sure that iMessage is turned on. To do this, go to the Settings app on your iPhone, then tap "Messages" and ensure that the "iMessage" toggle is turned on.
- Check to see if there are any software updates available for your iPhone. To do this, go to the Settings app, then tap "General" and "Software Update". If an update is available, download and install it.