Samsung USA AT&T [ NCK + MCK] Generic All Models Device Must be requesting CNK or MCK Code Need full check like this:IMEI: 3531386xxxxxxxxIMEI2: 353537xxxxxxxSerial number: R5CxxxxxxxModel: SM-S918URegion: ATTModel name: SM-S918U / Galaxy S23 UltraModel full name: SM-S918UZKFATTCountry: United StatesProduct date: 2023-06-27 00:00:00Activation date: 2023-07-14 00:00:00Warranty: 2024-07-13 00:00:00Device age: 995