The simplest way to connect
Plug your iPhone into your computer using the USB cable that came with it. On newer iPhones (iPhone 15 and later), this is a USB-C to USB-C cable. On older iPhones, it's a Lightning to USB cable. Plug the Lightning or USB-C end into the bottom of your iPhone and the other end into an open port on your computer.
When you plug in, your iPhone will show a message asking "Trust this computer?" Tap Trust. Your computer may also ask permission — click Allow or Continue. After that, your iPhone and computer recognize each other and can share files and information.
If nothing happens after you plug in, try a different USB port on your computer. The port you chose may not be working, or the cable itself may be damaged. If you have another Lightning or USB-C cable, test with that one first before assuming the port is broken.
Key Takeaways
- Use the USB cable that came with your iPhone — Lightning for older models, USB-C for iPhone 15 and newer.
- Tap Trust on your iPhone when prompted, and click Allow on your computer to complete the connection.
- On a Mac, your iPhone appears in Finder; on Windows, it shows up in File Explorer under "Devices and drives."
- If the connection fails, try a different USB port or test with a different cable before assuming hardware is broken.
What happens after you connect on Mac
On a Mac, open Finder (the blue and white face icon in your dock). Look in the left sidebar under "Locations" — your iPhone name appears there once connected. Click it to see what's stored on your phone and to move photos, videos, or documents between your iPhone and Mac.
You can also use the Finder window to back up your iPhone. With your iPhone selected in the sidebar, click the General tab at the top, then look for "Backups." Choose Back Up Now to save a copy of your iPhone's data to your Mac. This backup includes your settings, messages, photos, and app data — everything except what's already in iCloud.
If you want to sync music, podcasts, or books, you'll use the Music app (or Books app) instead of Finder. Open the app, click your iPhone icon in the top left, then choose what you want to sync to your phone.
What happens after you connect on Windows
On Windows, open File Explorer (the folder icon in your taskbar). Look under "Devices and drives" — your iPhone appears there with its name. Click it to see photos, videos, and documents stored on your phone. You can drag files between your iPhone and your computer from here.
Windows does not back up iPhones the way a Mac does. If you want a backup, you'll need to use iCloud instead — open Settings on your iPhone, tap your name at the top, then tap iCloud and turn on iCloud Backup. Your iPhone will then back up automatically when it's plugged in and connected to Wi-Fi.
To move music or other media to your iPhone from Windows, you can drag files into iTunes (if you still have it installed) or use the Files app on your iPhone to receive them through AirDrop or email. Most people now use iCloud or streaming services like Apple Music instead of syncing files manually.
Why your iPhone might not show up
The most common reason is that you haven't tapped Trust on your iPhone yet. Unplug the cable, look at your iPhone screen, and check whether a trust prompt is still waiting. If it is, tap Trust, then plug back in.
The second most common reason is a damaged cable. If you've had the cable for more than a year or it's been bent sharply, the connection inside may be broken. Try borrowing a different Lightning or USB-C cable from someone else and test that one. If your iPhone shows up with the new cable, you know the old one is the problem.
If a different cable doesn't help, try plugging into a different USB port on your computer. Ports can stop working without warning, especially on older computers. If your iPhone shows up in a different port, that first port is dead and you'll need to use the working one going forward.
Using Wi-Fi instead of a cable
You can sync your iPhone to your Mac or Windows computer over Wi-Fi instead of plugging in a cable. On your iPhone, go to Settings > General > About and look for "Name" at the top — that's your iPhone's name on the network.
On Mac, open Finder, click your iPhone in the sidebar, then click General at the top. Check the box next to "Show this iPhone when on Wi-Fi." On Windows, open iTunes, click your iPhone icon, go to Summary, and check "Sync with this iPhone over Wi-Fi." After that, your iPhone will appear in Finder or iTunes whenever it's on the same Wi-Fi network as your computer and plugged into power.
Wi-Fi syncing is slower than a cable, and your iPhone must be plugged in to charge. Most people use it only when they're away from their desk and don't want to hunt for a cable. For regular backups and file transfers, a cable is faster and more reliable.
Moving photos and videos off your iPhone
The easiest way is through Finder on Mac or File Explorer on Windows. Connect your iPhone with the cable, open Finder or File Explorer, click your iPhone, then look for the DCIM folder (or Photos on newer iPhones). This folder holds all your photos and videos. Drag them to a folder on your computer to copy them over.
On Mac, you can also use the Photos app. Connect your iPhone, open Photos, and look for your iPhone in the sidebar. Click Import to bring photos into your Mac's photo library. On Windows, the Photos app works the same way — connect, open Photos, and look for an import option.
After you copy photos to your computer, you can delete them from your iPhone to free up space. Go to Settings > General > iPhone Storage and look for apps or photos taking up the most room. Tap any item to see options for removing it.
Troubleshooting when nothing works
Restart both your iPhone and your computer. Turn off your iPhone completely (hold the power button, then slide to power off), wait 10 seconds, then turn it back on. Restart your computer the same way. This clears out temporary connection problems that prevent recognition.
Update your iPhone to the latest iOS version. Go to Settings > General > Software Update and install any update available. Older iPhones sometimes have trouble connecting to newer computers until iOS is current.
On Windows, make sure iTunes or the Apple Device Support software is installed. Go to the Microsoft Store and search for "Apple Device Support" — install it if it's not already there. Windows needs this software to recognize iPhones. On Mac, this is built in, so you don't need to install anything extra.
If you've tried all of this and your iPhone still doesn't show up, the USB port on your iPhone itself may be damaged. Try connecting to a different computer if you have access to one. If it doesn't work on that computer either, the port likely needs repair.
Frequently Asked Questions
Do I need iTunes to connect my iPhone to my computer?
On Mac, no — Finder handles everything. On Windows, you don't strictly need iTunes, but Apple Device Support (a smaller program) must be installed. You can get it from the Microsoft Store. If you want to manage music or podcasts, iTunes still works, but most people now use streaming services instead.
Can I transfer files from my computer to my iPhone?
Yes, but only through apps that support it. You can email files to yourself and open them on your iPhone, use iCloud Drive to sync documents, or use AirDrop on Mac. You cannot drag arbitrary files onto your iPhone the way you can with Android — the iPhone only accepts files that specific apps know how to open.
What's the difference between syncing and backing up?
Syncing copies specific types of files (music, photos, documents) between your iPhone and computer. Backing up saves everything on your iPhone — settings, messages, app data, photos — to one place so you can restore it later if something goes wrong. Backups are more important than syncing for protecting your data.
Will connecting my iPhone to my computer delete anything?
No. straightforward plugging in and trusting the connection does not delete or change anything. Only if you actively drag files to trash, click delete, or choose to sync in a way that overwrites files will anything be removed. When in doubt, don't click anything — just look at what's there.
Can I use any USB cable to connect my iPhone?
Only if it's the right type for your iPhone. iPhone 15 and newer use USB-C cables. Older iPhones use Lightning cables. A USB-C cable will not fit into a Lightning port, and vice versa. The cable doesn't have to be the original Apple cable, but it must be the correct connector type and in working condition.