How do I find a friend iPhone if it’s lost

Log on to www.icloud.com

Enter your friend's Apple ID and Password

Click on Find iPhone

Click on All Devices at the top of the window

Select the iPhone

We assume that your friend has previously enabled Find My on the phone. The phone must be powered on and connected to the Internet in order for it to appear on the map. There are additional steps that your friend might want to consider. Details below:

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

If you lost your iPhone please follow the steps documented here: If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support.

You will need to use Find My to find the lost or stolen device. You can learn how to use Find My from this support page: Use the Find My app to locate a missing device or item - Apple Support.

I hope this answers your question and good luck finding the device!