locked at restore screen

Hi rashmi74,

If your device is showing the Restore screen, then plug it into the computer and restart the iPhone. If the issue continues, you can reinstall iOS. This process won't cause any data loss and should help resolve the issue being experienced. The article below details the process. Here's how to restart once you are connected to the computer:

If the Restore screen appears on your iPhone, iPad, or iPod touch - Apple Support

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.

Here's how to reinstall iOS if restarting doesn't help:

If the Restore screen still appears after you restart

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.

Cheers.