El Samsung SGH-M300 (candybar) se desbloquea de red con código NCK calculado por IMEI.
mobileunlocksolutions.com/unlock-your-phone/rs1wp2/), TheUnlockArena.com, SimpleUnlocking.com, ProUnlocking.com, UnlockBase.com.Datos: IMEI (*#06#), modelo M300, país, operador original. Precio 5-15 €.
Si "Phone Freeze" → Pide **MCK (Unfreeze)** + NCK.