Cannot sign out due to restrictions

“Cannot sign out due to restrictions: I cannot sign out from my iphone due to restrictions. I have disabled screentime across all devices and tried turning off focus. Still no luck.”

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Cannot Sign Out of iCloud:

A Used Device:

Is this a used device? If so, the seller needs to sign out of it. This is the site the seller should have used prior to selling it to you: What to do Before you Sell, Give Away, or Trade in your iPhone or iPad - Apple Support

A Company-Owned Device:

If this is a company-owned device, then you need to take this up with the company’s tech department.

“Not used. Mine since new. Just changed telco and trying to port my number. I can’t update my phone number and apparently need to sign out of Apple account to do this but can’t sign out.”

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Get your Credential’s Phone Number Changed...

Contact Apple Support:

Ask the Apple Rep to modify it over the phone. If permitted to do so, then inform to modify the Phone Number associated to your Apple Account, to what it should be. Important: Perform a Trial & Error login session with the Apple Rep prior to ending the phone call.

Contact ApleSupport. 

• Contact Us - Choose Locations
• Proceed from there as Necessary