To connect a phone to an Auking projector, you need an HDMI adapter cable for your specific phone model, then select the HDMI input on the projector and enable screen mirroring on your phone. This is the method Auking itself recommends, and it works reliably for both iPhone and Android devices.
Before you connect a phone to an Auking projector: Auking's own guidance
Auking's own site documents that its projectors have HDMI, VGA, AV, and USB interfaces, but for smartphones you must use an HDMI adapter, select the HDMI input, and enable mirroring on the phone. AuKing documents that its projectors support VGA and AV interfaces, not just HDMI and USB. This means you should not attempt to use the projector's USB port for direct phone video output, as it is not designed for that purpose. Check which video input ports your specific Auking model has, then gather the correct adapter for your phone before proceeding.
Method 1: Connect with an HDMI cable (recommended by Auking)
This is the wired method Auking instructs users to follow. The exact steps depend on whether you have an iPhone or an Android phone, because each requires a specific adapter.
For iPhone
Apple documents that iPhone can connect to a projector with the appropriate adapter and an HDMI or VGA cable, then you switch the projector to the correct video source. Apple documents that iPhone can connect to a projector with a VGA cable, not just HDMI. Apple separates Lightning-based adapters from USB-C adapters, so the required adapter depends on the iPhone's port.
- Plug the correct Apple adapter into the iPhone's charging port: use the Lightning Digital AV Adapter or Lightning to VGA Adapter for Lightning iPhones, or the USB-C Display AV Adapter or USB-C VGA Multi-port Adapter for USB-C iPhones.
- Connect an HDMI cable to the adapter, then connect the other end of the HDMI cable to the Auking projector's HDMI input.
- Turn on the projector and select the HDMI input source using the projector's remote or on-device controls.
- On the iPhone, enable screen mirroring (this typically happens automatically once the cable is detected, but you can also check in Control Center).
Apple documents that USB-C to HDMI adapters or cables supporting HDMI 2.0 can output video at 4K at 60Hz from iPhone, so you can get high-resolution projection if your Auking model supports it.
For Android
- Connect a compatible USB-C to HDMI adapter to your Android phone's charging port.
- Turn on the projector and select the HDMI input source.
- On the Android phone, enable screen mirroring.
If you need to screen mirror Android, this wired method provides the most stable and lag-free connection for video playback and presentations.
Method 2: Cast wirelessly with a Chromecast
Google's verified setup for casting requires a Chromecast or Google TV device plugged into the projector's HDMI port. This method is wireless, but it requires a stable Wi-Fi network.
- Plug the Chromecast device into the Auking projector's HDMI input port and connect it to power using the provided USB cable.
- Turn on the projector and set it to the correct HDMI input source where the Chromecast is connected.
- Ensure your phone and the Chromecast are on the same Wi-Fi network. This is the single most important requirement, Google's help pages state that the phone and the cast target must be on the same Wi-Fi network.
- On your phone, open a cast-enabled app (such as YouTube, Netflix, or the Google TV app) and tap the Cast button. Select your Chromecast device from the list. The Cast button will change color when connected.
- Alternatively, use the Google TV app: open the app, tap the nearby devices area, select the Chromecast device, enter the code shown on the projector screen, and tap Pair.
For full screen mirroring from an iPhone, use the wired HDMI method instead.
Troubleshooting your Auking projector connection
If your phone does not display on the projector, work through these verified fixes in order.
Ensure the projector is on the correct HDMI source
This is the most common issue. The Auking projector may have multiple HDMI ports or other inputs (VGA, AV, USB). Use the projector's remote or menu button to cycle through input sources until you see your phone's display. If you are using a Chromecast, make sure the projector is set to the HDMI port where the Chromecast is plugged in, not a different HDMI port.
Check the Wi-Fi network for Chromecast
If you are using the wireless casting method and the phone cannot find the Chromecast, verify that both devices are connected to the same Wi-Fi network. Go to your phone's Wi-Fi settings and note the network name, then check the Chromecast's network status in the Google Home app. If they differ, reconnect one of them to the matching network. Also ensure that the Wi-Fi router is not blocking device-to-device communication (guest networks often block this).
Confirm the phone's mirroring setting is enabled
For wired connections, the phone must have mirroring turned on. On iPhone, this is typically automatic when a certified adapter is detected, but you can open Control Center and tap the Screen Mirroring icon to confirm. On Android, look for the mirroring or casting toggle in the quick settings panel.
Frequently Asked Questions
Can I connect any phone to an Auking projector?
Yes, you can connect different types of phones like iPhones, Android devices, and even Windows phones, but the specific connection method may vary.
How do I connect my iPhone to an Auking projector?
Attach the HDMI adapter to your iPhone's Lightning port and connect the HDMI cable from the adapter to the projector's HDMI input.
Can I connect my phone to an Auking projector using a USB cable directly?
No. Auking's own documentation states that the projector's USB interface is not designed for smartphone video input. You must use an HDMI adapter cable or a wireless casting device like Chromecast.
Do I need a special app to connect my iPhone to an Auking projector with an HDMI cable?
No. Apple's Lightning Digital AV Adapter or USB-C Display AV Adapter works without any additional app. Once the cable is connected and the projector is on the correct HDMI source, the iPhone automatically mirrors its screen.
Why does my Android phone show "No signal" on the Auking projector?
This usually means the projector is not set to the correct HDMI input, or the USB-C to HDMI adapter does not support your phone's video output.
Can I connect my Android phone to an Auking projector without an HDMI port?
Yes, using a compatible USB-C to HDMI adapter or a Micro USB to HDMI adapter.
Is it possible to connect a Windows phone to an Auking projector?
Yes, using an HDMI adapter or cable.
Can I use a wireless HDMI adapter that is not a Chromecast?
If you use a third-party wireless HDMI adapter, follow the manufacturer's instructions, but note that Auking does not endorse any specific wireless adapter other than the HDMI adapter cable method.
Will connecting my phone to an Auking projector drain the phone battery quickly?
Yes, especially with the wired HDMI method, because the phone's video output and screen-on operation draw power. For extended use, keep your phone connected to a charger while projecting. Wireless casting also drains battery, though typically less than the wired method.
