A serial number can see in iCloud Bypass Tool application after APPLE iPhone 7 Plus RED Special Edition connected by USB cable or tap i button on the locked iPhone 7 Plus RED Special Edition screen.
Turn off any antivirus software or add iCloud bypass tool ikey software to the exceptions list.To start a procedure firstly is necessary have APPLE iPhone 7 Plus RED Special Edition jailbroken by Checkra1n if don't have, use our manuals( Windows OS / macOS).
If you plan to restore firmware or update it always remember to check if the new iOS version support jailbreak because without this you ends with the original iCloud account and locked iPhone 7 Plus RED Special Edition! Bypass iCloud activation lock is temporary(!) mean work until you Hard Reset APPLE iPhone 7 Plus RED Special Edition or update iOS by cable(by WiFi is disabled).