You need a USB-C or Lightning to HDMI adapter, not just a cable

Phones don't have HDMI ports built in. To connect your phone to a TV using HDMI, you need an adapter that converts your phone's charging port into an HDMI output. The adapter you buy depends on what kind of phone you have: Android phones with USB-C ports use a USB-C to HDMI adapter, and iPhones use a Lightning to HDMI adapter (or USB-C to HDMI if you have an iPhone 15 or newer).

Once you have the right adapter, the connection itself takes about two minutes. Plug the adapter into your phone's charging port, plug an HDMI cable into the adapter, plug the other end of the HDMI cable into your TV, and switch your TV to the correct HDMI input. Your phone's screen will then appear on your TV.

This method works for streaming video, showing photos, or mirroring your phone's entire display. It's different from wireless casting, which doesn't require any cables or adapters.

Key Takeaways

  • You must buy an adapter that matches your phone's port type — USB-C to HDMI for most Android phones, or Lightning to HDMI for iPhones before the iPhone 15.
  • The adapter plugs into your phone's charging port, and a standard HDMI cable connects the adapter to your TV.
  • After plugging everything in, you must manually switch your TV to the HDMI input where you plugged in the cable — usually done with your TV remote.
  • Some adapters require your phone to be plugged into power at the same time, so you may need a second cable or a powered adapter.

Finding the right adapter for your phone

The adapter you need depends entirely on your phone's charging port. Look at the port on the bottom of your phone. If it's a small rectangular slot, you have USB-C. If it's a thin rectangular connector with eight small pins, you have Lightning (iPhone). If it's a wider connector with 30 pins, you have an older iPhone port and will need a different solution.

For Android phones with USB-C, search for "USB-C to HDMI adapter" or "USB-C HDMI adapter" at any electronics retailer. These typically cost between $15 and $40. Popular brands include Belkin, Anker, and Amazon Basics, though any adapter with good reviews will work.

For iPhones with Lightning (iPhone 6 through iPhone 14), search for "Lightning to HDMI adapter." Apple makes an official one called the Lightning Digital AV Adapter, which costs around $50. Third-party options from Belkin and others cost less but may be less reliable.

For iPhone 15 and newer, use a USB-C to HDMI adapter since these phones switched to USB-C. The process is the same as Android phones with USB-C.

Connecting the adapter and cable step by step

Step 1: Plug the adapter into your phone. Take the adapter and insert it firmly into your phone's charging port. You should feel it click into place. Don't force it — if it doesn't slide in smoothly, you may have the wrong adapter or the port may be blocked by lint.

Step 2: Plug the HDMI cable into the adapter. Take a standard HDMI cable (the kind used for most TVs and streaming devices) and plug it into the HDMI port on the adapter. The HDMI connector is flat and rectangular with 19 small pins inside.

Step 3: Plug the HDMI cable into your TV. Locate an HDMI port on the back or side of your TV. Most TVs have at least two HDMI ports, sometimes labeled HDMI 1, HDMI 2, and so on. Plug the cable in firmly.

Step 4: Switch your TV to the correct HDMI input. Pick up your TV remote and press the button labeled "Input," "Source," or "HDMI." A menu will appear showing your available inputs. Select the HDMI port where you plugged in the cable (for example, "HDMI 1" or "HDMI 2"). Your phone's screen should now appear on your TV.

Powering your phone while connected

Many adapters do not pass power to your phone while it's connected, which means your phone's battery will drain while you're using it. If you plan to use your phone connected to the TV for more than an hour, you should plug your phone into power at the same time.

Some adapters have a second USB port built in where you can plug a power cable. If your adapter doesn't have this, you have two options: buy a powered adapter (one that plugs into a wall outlet), or use a separate charging cable. If you use a separate cable, you'll need to plug your phone into a wall outlet or power bank while the HDMI adapter is also plugged in.

Check the adapter's description or manual to see whether it supports power pass-through. If you're buying a new adapter and plan to use it for long periods, look for one that explicitly states it can charge your phone while connected.

Troubleshooting when your phone doesn't appear on the TV

If you've plugged everything in and your phone's screen isn't showing on the TV, start with the most common problem: you're on the wrong HDMI input. Pick up your TV remote, press Input or Source, and cycle through each HDMI option one by one. Your phone's screen should appear on one of them.

If you've tried all the HDMI inputs and nothing appears, unplug the HDMI cable from the TV, wait five seconds, and plug it back in. Then switch to that input again. Sometimes the connection needs to be reset.

If the screen still doesn't appear, try restarting your phone. Hold down the power button, turn your phone off completely, wait ten seconds, and turn it back on. Once it's on, the TV should recognize it again.

If you're using an iPhone and nothing appears after trying these steps, check that your phone isn't in Low Power Mode. Open Settings, tap Battery, and make sure Low Power Mode is off. Some iPhones restrict HDMI output when battery-saving mode is active.

When HDMI isn't the best option

HDMI adapters work reliably, but they require you to have a cable and adapter on hand, and they tie your phone to one spot. If you want to move around your room or show content from multiple devices, wireless casting may be more practical. Most modern TVs support casting through apps like Google Cast (Android) or AirPlay (iPhone), and you don't need any cables or adapters.

Wireless casting is slower to set up the first time, but once your phone is paired with your TV, you can cast instantly. The tradeoff is that wireless casting sometimes has slight delays or connection drops, while HDMI is always stable and immediate.

If your TV is very old and doesn't have HDMI ports, or if you need the absolute most reliable connection with zero lag, HDMI adapters are still your best choice.

Frequently Asked Questions

Can I use any HDMI cable with the adapter?

Yes. Any standard HDMI cable works with any USB-C to HDMI or Lightning to HDMI adapter. You don't need special cables — the ones you use for your TV, streaming device, or gaming console will work fine. If you don't have a spare HDMI cable, you can buy one for $5 to $15.

Will this work with older iPhones that have the 30-pin connector?

No. iPhones with the older 30-pin dock connector (iPhone 4s and earlier) require a different adapter that's harder to find. Your best option is to use wireless casting if your TV supports it, or upgrade to a newer phone.

Does the adapter work with tablets?

Yes, if your tablet has a USB-C or Lightning port. iPad Pro models with USB-C work with USB-C to HDMI adapters. Older iPads with Lightning ports work with Lightning to HDMI adapters. The process is identical to connecting a phone.

What if my TV doesn't have an HDMI port?

Older TVs with only composite (red, white, yellow) or VGA ports cannot be used with HDMI adapters. You would need a different type of adapter, such as USB-C to VGA, though these are less common and less reliable. Wireless casting is usually a better option for older TVs that support it.

Can I charge my phone and use HDMI at the same time?

Only if your adapter supports power pass-through or if you use a powered adapter that plugs into a wall outlet. Standard adapters don't charge your phone while connected. If you need to charge and use HDMI simultaneously, look for adapters that explicitly state they support charging, or buy a powered dock-style adapter.