After a install iso 16.3 my ipone facing freezing problem and frequently hang

Hi soheb7081,

Thanks for reaching out to Apple Support Communities.

It sounds like you're having an issue with your iPhone freezing after updating to iOS 16.3.

We're happy to assist.

We recommend checking out the steps in the section titled "If your screen is black or frozen" from the article here: If your iPhone won't turn on or is frozen - Apple Support

1) Press and quickly release the volume up button.

2) Press and quickly release the volume down button.

3) Press and hold the side button until you see the Apple logo.

4) If your phone doesn't turn on, follow these steps to check your hardware and charge your phone. You might need to charge for up to an hour.

5) If your phone still doesn't turn on, contact Apple Support.

We’re recommending the steps above because they directly address the issue you initially posted about: your iPhone is freezing after updating to iOS 16.3.

Should the issue continue, follow-up with the steps in this article: If your iPhone or iPad is running slow - Apple Support

Please let us know the outcome after giving the above steps a try.

Cheers!