If your PC monitor dies and you don’t have a spare, it’s still possible to use your phone as a temporary monitor. This can be a lifesaver when you need to work or play games, but most online guides require you to install software on the PC first, which is tricky without a screen. Here’s a breakdown of your options.
1. Use Remote Desktop or VNC (If Already Installed)
If your PC already has remote desktop software like TeamViewer, AnyDesk, or Windows Remote Desktop, you can connect to it directly from your phone. Just install the same app on your phone, enter your credentials, and you’ll see and control your PC screen instantly.
Pros: Works immediately, no extra hardware required.
Cons: Only works if the software was installed before your monitor failed.
2. Use a Capture Card or HDMI Adapter
If your PC has an HDMI output, you can use an HDMI-to-USB capture card and connect it to your phone via USB OTG. Apps like USB Camera / HDMI Input let you view the PC screen on your phone.
Pros: Works even if no monitor is available.
Cons: Requires a capture card, may introduce slight lag.
3. Use an HDMI-to-MHL Adapter
Some phones support MHL or DisplayPort over USB-C, allowing direct video input from your PC. Connect the HDMI from your PC to an MHL adapter and use the corresponding viewer app on your phone.
Pros: Direct connection, no PC software needed.
Cons: Only compatible with certain phone models.
4. Borrow a Monitor to Set Up Remote Access
If none of the above options work, a temporary monitor or even a friend’s PC can help. Install a remote desktop app (like SpaceDesk, TeamViewer, or AnyDesk) on your PC and configure it to start automatically on boot. Once set up, your phone can act as a monitor anytime, even if the main display is dead.
Key Notes
- Without pre-installed remote software, you can’t set up most phone-monitor solutions from scratch.
- Remote desktop solutions are the easiest and most reliable for ongoing use.
- Capture cards or MHL adapters work, but may require extra hardware.
💡 Conclusion:
Using a phone as a monitor is possible, but the best approach depends on your current setup. If your PC already has remote access software, you’re ready to go. If not, a temporary monitor is usually needed for initial installation. Once everything is set up, your phone can serve as a backup monitor whenever you need it.