1. Back up data of the internal memory.
  2. Turn off the device.
  3. Press and hold the Volume down button, then press and hold the Power button at the same time until the phone turns on. Release both keys when it does.
  4. Press the Volume down button twice to highlight ‘Recovery mode.’ (Check our guide on how to Boot Nexus 5X into Recovery Mode)
  5. Press the Power button to start the recovery mode. An Android robot with a red exclamation mark will display.
  6. While holding down the Power button, press and release the Volume up button. The ‘Android system recovery’ menu will display. Release Power when it does.
  7. Use the volume buttons to scroll to ‘Wipe data/factory reset,’ then press the Power button to select it.
  8. Scroll down to “Yes – erase all user data,” then press the Power button to select it.
  9. Once the reset is complete, press the Power button to select Reboot system now.
  10. If your phone becomes unresponsive at any point during these steps, you can restart it by holding down the Power button for several seconds.

Nexus 5X is also known for some other issues, and we have created guides for all of them. You can check our guide to fix Nexus 5X bootloop issue along with a guide to factory reset Nexus 5X.

Well, we hope the guide to fix Nexus 5X issue might have helped you to troubleshoot the issue. If none of the above workarounds fixed your Wi-fi issue, then most plausibly might be a hardware issue. In that case, it’s recommended to visit a nearby service center.