trying to restore iphone 11. Frozen because storage is full. Now have restore screen. But cant find iphone on laptop

Hi marymithun,

Welcome to the Apple Community.

Apple support has articles online to help:

If you wish, you can follow the guidance, step by step.

Back up and restore your iPhone or iPad to your Mac or to iCloud

says:

In the Finder  on your Mac, select the device in the Finder sidebar.

If you connect your device to your Mac using a USB cable and don’t see the device in the Finder sidebar,

see If your device doesn’t appear in the sidebar. 

Complete article: https://support.apple.com/en-au/guide/mac-help/mchla3c8ed03/mac

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OR

If you use a PC

Restore your iPhone, iPad or iPod touch in iTunes on PC

https://support.apple.com/en-au/guide/itunes/itnsdb1fe305/windows

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Hope this helps :-)