Microphone mute option available during calls. Microphone permissions can be revoked for specific apps. Third-party apps like Microphone Amplifier offer volume control
Paper clip is the best non-standard tool for opening SIM tray. Safety pin is second best option. SIM tray is located on right side of most iPhones
Samsung devices have IP ratings to protect against water and dust. Dry the USB port by shaking it 5-10 times. Clean the port's interior with a soft cloth or toothpick
Press volume and top buttons together. Drag power off slider to right. Wait 30 seconds for iPad to power off. Press top button until Apple logo appears. Lock screen should appear after restart
Swipe up from bottom to reveal all open apps. Scroll left or right until finding desired app. Swipe app up and off screen to close it. Tap X in top corner or use Close all option
Android devices may freeze due to everyday use. Check if all device keys respond when frozen. Remove back panel by prying or sliding. Remove battery to force reset