my iphone is recognised as "ptp" under other devices when seen in Device manager of windows

Install the Media Feature Pack for Windows 10.

Navigate to Settings > Apps > Apps and Features > Optional Features > Add a Feature and find the Media Feature Pack.

Restart Windows 10.

This worked for me.

I found the solution here:

https://steemit.com/computers/@basejumper/fix-for-iphone-11-not-being-detected-by-windows-10-ptp-driver

Unlock the device before connecting to USB and respond positively when asked to trust the computer. If you don't get a prompt you may need to reset your trust settings. See About the 'Trust This Computer' alert on your iPhone, iPad, or iPod touch - Apple Support.

tt2

I have tried it, but still can't see my device in Windows, while in iTunes, I can see that phone...

Is there content in the device's camera roll?

tt2