Level 3 RepairDistribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.Confidential and proprietary-the contents in this service guide subject to change without prior notice.8-358-3-14. Sim PartCheck the Voltage of SIM(Left side of R323 : 1.8V,R322 : 3.0V)Insert SIM cardCheck the Pin Solderingof HDC301YesYesYesNoENDCheck the Voltage ofdetection PIN(Right side of R323 : 0V)Resoldering and recheckChange to the new SIM cardCheck the voltage from PMIC and CP.Unless power, Change the PBAYesNoNoYes