The "iCloud unlock" industry is high-risk. Expert communities on Reddit warn that tools requiring payment for "A12+ support" or those not requiring a physical connection are likely fraudulent.
These tools are not authorized by Apple. Using them may void warranties and permanent removal of iCloud is only officially supported through Apple Support with original proof of purchase.
Users must physically connect the device to a PC or Mac; tools claiming to work remotely via just an IMEI or serial number are often categorized as scams by security researchers.