![Gt-i9300 Efs Gt-i9300 Efs](http://www.telecelula.com.br/wordpress/wp-content/uploads/2013/03/bootloader2.jpg)
GT-I9300 efs downgrade from v2 to v1 (self.GalaxyS3) submitted 3 years ago by emmettxt. Hi is there anyway i can downgrade the efs format from v2 to v1, I need to do it to sim unlock my phone. I dont have any efs v1 backup is there anyway I could use someone else's efs v1 folder or another method. Solutions & Tips, Download Manual, Contact Us. Samsung Support UK. Skip to content. Choose another country or region to see content specific to your location. See More Close. This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Find out more here. Samsung Open the Menu.
i9300 samsung i9300 emergency call only solv 1000%
REPAIR 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. Enable 'USB debugging' in 'Settings'-'Developer options' for Android 4.0 - 4.1.2 or
tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options' in Android 4.2+.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Fill values what you need to repair.
6. Press 'Repair' button.
7. Press 'Reset EFS' if you need to reset it.
Be carefully, do not perform this without necessity and make backup before.
8. Press 'Disable Factory Mode' or 'Patch Sertificate' if needed.
Operation: Patch Certificate
Selected model: GT-I9300
Software version: 30.8
Waiting ADB device... OK
Reading phone info...
Model: GT-I9300
Android version: 4.3
Product code: Not Active
Phone version: I9300DXUGNB1
PDA version: I9300XXUGNA5
CSC version: I9300OLBGNB1
CSC country code: PHILIPPINES
CSC sales code: GLB
HW version: REV__
Phone SN: 00000000000
Modem board:
RF cal date: none
IMEI: 359435058053146
Checking Super user right... true
Reading modem... OK
Patching modem... OK
Writing modem... OK
Reading kernel... OK
Patching kernel... OK
Writing kernel... OK
Rebooting phone... OK
Patching CERT check... done
Done with Samsung Tool PRO v.30.8
REPAIR 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. Enable 'USB debugging' in 'Settings'-'Developer options' for Android 4.0 - 4.1.2 or
tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options' in Android 4.2+.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Fill values what you need to repair.
6. Press 'Repair' button.
7. Press 'Reset EFS' if you need to reset it.
Be carefully, do not perform this without necessity and make backup before.
8. Press 'Disable Factory Mode' or 'Patch Sertificate' if needed.
Operation: Patch Certificate
Selected model: GT-I9300
Software version: 30.8
Waiting ADB device... OK
Reading phone info...
Model: GT-I9300
Android version: 4.3
Product code: Not Active
Phone version: I9300DXUGNB1
PDA version: I9300XXUGNA5
CSC version: I9300OLBGNB1
CSC country code: PHILIPPINES
CSC sales code: GLB
HW version: REV__
Phone SN: 00000000000
Modem board:
RF cal date: none
IMEI: 359435058053146
Checking Super user right... true
Reading modem... OK
Patching modem... OK
Writing modem... OK
Reading kernel... OK
Patching kernel... OK
Writing kernel... OK
Rebooting phone... OK
Patching CERT check... done
Done with Samsung Tool PRO v.30.8