If you are facing a problem on iOS using Salesforce mobile App, Salesforce Field Service Lightning App or even SharinPix App, it could be very helpful to capture your screen to show us what your problem looks like.

To do so, please follow those easy steps:

• Add Screen Recording to Control Center. 
• Go to Settings > Control Center > Customize Controls, then tap the ( + ) icon next to Screen Recording.
• Open Control Center.
• Tap the Rec icon ( O ) , then wait for the three-second countdown. To capture sound while you record, press deeply on and tap Microphone Audio.
• To stop recording, open Control Center and tap (  ) . Or tap the red status bar at the top of your screen and tap Stop.

You can find your screen recording in the Photos app.