Sound disappeared from videos recorded on iPhone 12
The sound has disappeared from my videos. Why? Recorded on my iPhone 12
[Re-Titled by Moderator]
The sound has disappeared from my videos. Why? Recorded on my iPhone 12
[Re-Titled by Moderator]
No volume or the Volume icon is greyed out?

There are several potential reasons why your iPhone may have no sound on videos. Here are some troubleshooting steps you can try:
If nothing above works probably it could be your iPhone may have a problem. In that case, take your device to an Apple Retail Store or Apple Authorized Service Provider, or contact Apple Support and get the hardware tested and if needed to be repaired/replaced.
Find Locations - Location Selector - Apple
Contact Apple for support and service - Apple Support
Get a Genius Bar Reservation and Apple Support Options - Apple
Contact Genius Bar. Manage Reservations - My Reservations - Apple
No volume or the Volume icon is greyed out?

There are several potential reasons why your iPhone may have no sound on videos. Here are some troubleshooting steps you can try:
If nothing above works probably it could be your iPhone may have a problem. In that case, take your device to an Apple Retail Store or Apple Authorized Service Provider, or contact Apple Support and get the hardware tested and if needed to be repaired/replaced.
Find Locations - Location Selector - Apple
Contact Apple for support and service - Apple Support
Get a Genius Bar Reservation and Apple Support Options - Apple
Contact Genius Bar. Manage Reservations - My Reservations - Apple
Sound disappeared from videos recorded on iPhone 12