4) Drag the slide to power off Slider to turn off your iPhone.
5) Wait for a few seconds and then turn on your iPhone. To turn on your iPhone, hold down the Side Button until the Apple logo appears.
Solution 2 : Reset your Airpods/Airpods pro
First, take your Airpods case and place your Airpods inside the case. Then close the lid. Wait for 30 seconds and open the lid. With the lid open, hold down the Setup Button until the Status light flashing amber. Now connect your Airpods to the iPhone and then check whether the sound is working or not.
1) First, remove the Airpods from the case and then Blow into the case and Airpods Speaker.
2) Now place your Airpods inside the case. Wait for few seconds and then remove it from the case.
3) Again blow into the case.
4) Then Connect your Airpods to iPhone and check whether the sound is working or not.
Solution 4 : Use Q-tip
Take your Airpods from the case.
Now clean the inside of Airpods case using q-tip and and then clean Airpods Speaker.
After that, reset your Airpods (solution 2) and connect it to iPhone.
Now the sound should work on your Airpods.
If it doesn’t work out, use Toothbrush to clean the Airpods speaker and then check whether sound is working or not, After cleaning the Airpods, you have to reset your Airpods.