my phone has failed to power on yet it is just showing the restore screen

Hi there,

In order for it to power on, you must first follow these steps to restore it

Connect to your computer

Connect your device to your computer using the cable that came with your device. Don't disconnect your device from your computer.

Restart your device

For iPad models without a Home button: Press and quickly release the volume button closest to the top button. Press and quickly release the volume button farthest from the top button. Press and hold the top button until the Apple logo appears. If you're not sure, learn which buttons you need to press to restart your iPad.

For iPhone 8 or later: Press and quickly release the volume up button. Press and quickly release the volume down button. Press and hold the side button until the Apple logo appears.

If the Restore screen still appears after you restart, you need to reinstall iOS or iPadOS:

1. On your Mac, make sure that you've installed the latest software updates (including iTunes if you have MacOS Mojave or earlier). Or on your Windows PC, make sure that you've installed the latest version of iTunes.
2. Make sure that your device is still connected to your computer. A "There's a problem with the [your device name] that requires it to be updated or restored" message should appear.
3. Click Update (not Restore) to reinstall iOS or iPadOS and keep your personal data. Don't disconnect your device from your computer until the update finishes.