You can remove the SIM card from your Samsung Galaxy S10 using the SIM removal tool that came with your phone, or a very thin paperclip.

To remove the SIM card from your iPhone, you'll need to eject the SIM card tray with a special tool or paperclip.

So you're in a pinch, and you need to swap out the SIM card or install a microSD in your Android device, but you can't find the nifty little ejector tool that came in the device's retail box. Fret not ...

Changing physical SIM cards on your phone is always a fiddly business. First, you have to root for the little SIM tray tool ...