“What to do when activation lock removal approved?: I have an iPhone 16 pro and locked myself out. I do not remember the password to my iCloud and do not know the screen lock code.[…]”
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Is this a used device? Or is it on that you purchased directly from Apple? If you did not purchase it from Apple, the return it to the seller.
Troubleshooting a Locked iPhone:
Only Apple can unlock this --no one else. So, contact Apple Support. Refer to the following...
Hold It Right There!:
Enter the passcode incorrectly too many times, and you'd likely be locked out for good. So, hold it right there, and refer to this link: If you Forgot the Passcode on your iPad, or your iPad is Disabled - Apple Support. It would be the one you've always entered. If you do not know it, then look for it in a location you may have stored it in.
Being Locked Out...
Have any Proof of Purchase?
Unless you have the original packaging and receipt, you may be out of luck. If you do have it, however, then take this to an Apple Store, or an AASP (Apple Authorized Service Provider)! and they may be able to restore it. The reason for this blockage is all about Security & Privacy.
Apple Contact Info: