My iphone 11 camera ring has this white colour stuff on it..

Hello jensen33,

Thanks for reaching out to the Apple Support Communities! I understand that you have a question about cleaning your iPhone. I'm happy to help you find some information.

Here is a resource that can assist you with steps:

Cleaning your iPhone

You can visit an Apple Retail Store or Authorized Service Provider and allow our technical staff to assist you.

Find Locations

If you have any issues after reviewing the links, please let me know.

Have a great day!

Hello jensen33,

Thanks for reaching back out to Apple Support Communities, about your camera issue. I'm happy to point you in the correct direction.

I would recommend reaching out to an Apple Retail Store or Authorized Service Provider and allow our technical staff to review the device for any hardware issues. Once the device has been inspected, they would be able to discuss the repair options with you.

Apple Repair

Have a great day!