Requirements: - Download file PATCH "930SCHL4_unlock_and_media.zip" FTP manufacturer or <Bạn vui lòng đăng nhập hoặc đăng ký để xem được nội dung này!> (members only) - Required 730SC cable RJ45 + USB - Use program Samsung Qualcomm Tool version 5.6.42 or higher - Battery 100% charged STEP 1 (How to put the phone in DOWNLOAD) 1 - Phone with battery and connected off WITHOUT CABLE 2 - Switch phone to flash mode: Volume key down + camera button + power on 3 - It will be shown on the phone display the following information: 930SC 2:00 DOWNLOAD 4 - If it asks for the drivers phone, just look for the drivers in the following folder C: \ Program Files \ Z3X \ Samsung \ Qualcomm \ Samsung Drivers STEP 2 (How to unlock the phone) 1 - Open the Samsung Qualcomm Tool 5.6.42 or higher 2 - Choose Model 930SC 3 - Double click on the field FIRMWARE and select the file "930SCHL4_unlock_and_media.crp" 4 - The Information (type, version and type) of the file will be displayed by the program. 5 - Click on the UPDATE FIRMWARE 6 - This will display a confirmation window, just click YES 7 - Wait for the flash finish 8 - After the message "Done Flashing" wait for the phone restart, remove the cable and test the release.