https://us.community.samsung.com/t5/Galaxy-S23/Unlocked-phone-asking-for-MCK-unlock-because-of-too-many/m-p/3297539#M74481 It may be permanently sim locked. In settings, you can lock the sim, if that code is entered too many times wrong, it can trigger the mck. If the attempts continue, it can permanently lock the sim.<BR />Another thing to try is to manually flash the device. Otherwise, you got **bleep** and should probably return the device. Whats the device model number? Sat, 12 Jul 2025 13:01:06 GMT MarvinMod2 2025-07-12T13:01:06Z