Samsung Sm-A700fd IMEI Repair Done With Write CERT

At last Successfully Repair IMEI With Write CERT

1st flash This File then write CERT

GaA700FDXXU1AOAB_OLB1AOA4

  FLASH INSTRUCTIONS:

  1. Choose correct flash file(s).
  2. If you have PIT file chosen, then you must check "Repartition" option.
  3. Check flashing options if needed (Repartition, EFS clear, Boot update).
  4. Power on phone in download mode (turn off phone, press vol.down + home + power).
  5. Connect phone to PC with USB cable, install drivers if needed.
  6. Press "Flash" button.


  BACKUP INSTRUCTIONS:

    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. Select device in ADB settings.
  5. Press "Read EFS" button to read backup or "Write EFS" to restore or
     press "Write CERT" to restore certificates.
 
   To backup/restore QCN, phone diagnostic port must be enabled.
  1. Power on the phone.
  2. Type *#0808# and select "DM+MODEM+ADB".
  3. Type *#9090# and select "DM/DUN over HSIC".
     Or use "Activate Diag" function from "Repair" tab.
  4. Connect phone to PC with USB cable, install drivers if needed.
  5. Select diagnostic port in port settings.
  6. Press "Read QCN" button to read NV backup or "Write QCN" to restore.


  UNLOCK INSTRUCTIONS:

  1. Power on the phone.
  2. Type *#0808# and select "DM+MODEM+ADB".
  3. Type *#9090# and select "DM/DUN over HSIC".
     Or use "Activate Diag" function from "Repair" tab.
  4. Connect phone to PC with USB cable, install drivers if needed.
  5. Select diagnostic port in port settings.
  6. Press "Unlock" button for direct unlock.


  REPAIR INSTRUCTIONS:

     Activate Diagnostic Port:
  1. Tap 7 times on "Build number" in "Settings"-"About phone" to enable "Developer options",
     go to "Settings"-"Developer options" and enable "USB debugging".
  3. Select device in ADB settings.
  2. Press "Activate Diag" 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. Select device in ADB settings.
  5. Press "Reset EFS" if you need to reset it.
     Be carefully, do not perform this without necessity. Backup will be created automatically.
  6. 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. 
  1. Power on phone in download mode (turn off phone, hold Volume Down + Home + Power).
  2. Connect USB cable, install drivers if needed.
  3. Press "Wipe EFS/NVM" button to deactivate security.
  4. Wait till phone reboot.

SAMSUNG SM-A700FD Writing IMEI certificate ... ok

Scanning devices ... 1 found

dev[1]

Manufactory: SAMSUNG

Model: SM-A700FD

Hardware: QCOM

Mode: normal

Bypass MSL ... done

TRY TO USB Modem

Connect to device ...

Device Authentication ... communication failed

Please check:

1. choose the right port

2. some device UART need re-connect use each 30 seconds

Connect to device ...

Can't Get Device Master Key

TRY To COM Port

Connect to device ...

Device Authentication ...

Writing IMEI ...

Writing IMEI certificate ... ok, You need reboot device

Connect to device ...

Writing IMEI ...

Writing IMEI certificate ... ok, You need reboot device