Go through the usual setup options, including logging on to your Wi-Fi network. Wait while the iPhone activates. Remove the SIM and hand it back to your friend. You can now use your iPhone; you just won't be able to make phone calls (unless you do so using Skype, FaceBook Messenger, WhatsApp or FaceTime).
Activate iPhone Using Emergency Call Another method to bypass iPhone activation without SIM Card is by using the Emergency Call feature of the device. For this to work, you will simply need to use the Emergency Call feature, but don't actually have to connect the call.
Activate iPhone Without SIM Card
Can you use an iPhone without a SIM card? Yes, you can.
How to activate iPhone without a SIM card
Go to Settings > Cellular, then tap a cellular plan with a physical SIM. Tap Convert to eSIM, then follow the onscreen instructions.
It is possible to use an iPhone without a SIM, if you are not using it with cellular service. However, once you update the iOS on the phone, it requires activation again. Activation requires a SIM, even if the device is not using active cellular service.
The first and most effective way to activate iPhone without SIM Card is to use iTunes on your PC. iTunes is a software established and specially designed to manage iPhone and other iOS devices. Since it is Apple's own software, it can be trusted completely to do the said task.
Connect your iPhone to the computer using the Apple-supplied USB cable or Lightning cable. Assuming that the phone is not locked to a carrier, iTunes will prompt a message telling what you need to do and the details you need to fill in to activate your iPhone.
Steps to Bypass iPhone SIM Lock
Step 1: Hit the home button of your iPhone when you find yourself stuck at the screen that says “No SIM Card Installed” and then tap the option that says “Emergency Call”. Step 2: Now, you can either dial “999” or “112” and the moment it dials up, immediately disconnect the call by pressing the power button.
Activating an iPhone using iTunes on a computer
Part 1: Do You Need A SIM to Activate Your iPhone? The good news is, Since the rollout of iOS 12, you can activate your device without a SIM card by only using WiFi. But unfortunately, many older versions of iOS require you to have a working SIM card in order to activate the device.
The best way to see if the SIM is active would be to insert it into a device which has a compatible SIM card slot. The good news is inserting any older SIM card into a phone will not harm the phone in any way or change any of the settings.