REPAIR INSTRUCTIONS: Repair IMEI/Serial/BT/WiFi/Product Code: 1. Power on the phone. 2. Type *#0808# and select 'DM+MODEM+ADB'. 3. Reboot phone. 4. Connect USB cable, install drivers if needed. 5. Select Samsung diagnostic port in port settings. 6. Press 'Reset MSL' button to deactivate security. 7. Wait till phone reboot. 8. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options', go to 'Settings'-'Developer options' and enable 'USB debugging'. 9. Fill values what you need to repair. 10. Press 'Repair' button. Reset EFS, Disable Factory Mode: Phone must be rooted! If the software can't root the phone automatically, then you must root your device manually. 1. Power on the phone. 2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options', go to 'Settings'-'Developer options' and enable 'USB debugging'. 3. Connect the phone to PC with USB cable, install drivers if needed. 4. Press 'Reset EFS' if you need to reset it. Be carefully, do not perform this without necessity. Backup will be created automatically. 5. If you have yellow table on your device screen, then press 'Disable Factory Mode' button. Wipe EFS/NVM: If you have 'IMEI null/null' or 'Phone baseband unknown' errors, Then you can try to repair this errors with this function. Phone must be rooted! If the software can't root the phone automatically, then you must root your device manually. 1. Power on the phone. 2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options', go to 'Settings'-'Developer options' and enable 'USB debugging'. 3. To use 'Auto backup/restore QCN' function (recommended): Type *#0808# and select 'DM+MODEM+ADB'. Type *#9090# and select 'DM/DUN over HSIC'. Or you can disable this function and use ADB only. 4. Connect the phone to PC with USB cable, install drivers if needed. 5. Choose diagnostic port in port settings if 'Auto backup/restore QCN' is not skipped. 6. Press 'Wipe EFS/NVM' button. Operation: Repair Selected model: SGH-T999 Selected port: COM30 SAMSUNG Mobile USB Serial Port Software version: 24.5 Waiting ADB device... OK Reading phone info... Model: SGH-T999 Android version: 4.3 Product code: Not Active Phone version: T999UVUEMJC PDA version: T999UVUEMJC CSC version: T999TMBEMJC CSC country code: USA CSC sales code: TMB HW version: T999.00 Phone S/N: R21CB220P7D Modem board: MSM8260A RF cal date: NONE IMEI: 353022058440501 Initialization AT RIL... OK Bypass MSL... OK Repairing IMEI... OK Rebooting phone... OK Repair done Done with Samsung Tool PRO v.24.5 không có sóng luôn hic