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  1. Thread Author  Thread Author    #1  

    Default Downgrading

    Hello Android Central users,

    I've had 4.1.2 on my galaxy S3, everything was working perfectly. I've flashed 4.3 via Odin, so now I have no service available - Not registered on network (Emergency calls only). I downloaded 4.1.2 on my computer (MD5 file), so now I have 4.3 and 4.1.2 files (MD5) downloaded on my computer, for my region 'Cellcom' in Israel. So I want to downgrade because it says 'not registered on network' will it work if I flash the 4.1.2? What if an error occurs? Is it safe to downgrade as in flashing 4.1.2 over 4.3? Do I need a specific file to downgrade? If so, please tell me how to do it. Give me instructions, I'll appreciate it. I've tried clearing cache hoping that I restore the 4.1.2 but it didn't.
  2. #2  

    Default Re: Downgrading

    Do not downgrade this will damage EFS folder which stores imei and serial number

    Press THANK YOU and LIKE button if you gets the answer
    Dont' Forget to press Thank you button and like button when you get an answer
  3. #3  

    Default Re: Downgrading

    once flashed with 4.3 you cannot downgrade.go to recovery and clear cache then data. It will fix the problem. If you want to downgrade then root your phone and backup the Efs folder

    Press THANK YOU and LIKE button if you gets the answer
    Dont' Forget to press Thank you button and like button when you get an answer
  4. Thread Author  Thread Author    #4  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    once flashed with 4.3 you cannot downgrade.go to recovery and clear cache then data. It will fix the problem. If you want to downgrade then root your phone and backup the Efs folder

    Press THANK YOU and LIKE button if you gets the answer
    I cleared the cache, nothing's working.
  5. #5  

    Default Re: Downgrading

    Try cleaning cache and data too.
    clearing data will remove all your applications and games.
    if the problem is not fixed then update your phone with kies3

    Press THANK YOU and LIKE button if you gets the answer
    Dont' Forget to press Thank you button and like button when you get an answer
  6. Thread Author  Thread Author    #6  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    Try cleaning cache and data too.
    clearing data will remove all your applications and games.
    if the problem is not fixed then update your phone with kies3

    Press THANK YOU and LIKE button if you gets the answer
    How can I update with Kies? I have the latest firmware - 4.3..

    -EDIT-: I forgot to mention that I did a factory reset, wiped data and cache. Still haven't got 4.1.2, stuck with 4.3.
  7. #7  

    Default Re: Downgrading

    This might be a bug on firmware

    Go to www.sammobile.com/firmwares/1/
    And search a latest firmware for.your phone.Then Reflash that firmware . remember never downgrade.

    Press THANK YOU and LIKE button if you gets the answer
    Dont' Forget to press Thank you button and like button when you get an answer
  8. Thread Author  Thread Author    #8  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    This might be a bug on firmware

    Go to Firmwares | SamMobile
    And search a latest firmware for.your phone.Then Reflash that firmware . remember never downgrade.

    Press THANK YOU and LIKE button if you gets the answer
    What I am trying to do is, restoring the 4.1.2 because I have no signal - not registered on network. I checked the latest 4.3 firmware on SamMobile, it has the same modem so I think no changes will be made if I am not wrong.
  9. #9  

    Default Re: Downgrading

    Check your imei number.
    you must backup the efs folder, or it will damage imei number. Try Reflashing the 4.3 firmware again. reflashing will not take time. So
    Try it again..

    Press THANK YOU and LIKE button if you gets the answer
    Dont' Forget to press Thank you button and like button when you get an answer
  10. Thread Author  Thread Author    #10  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    Check your imei number.
    you must backup the efs folder, or it will damage imei number. Try Reflashing the 4.3 firmware again. reflashing will not take time. So
    Try it again..

    Press THANK YOU and LIKE button if you gets the answer
    My IMEI is *************** / 07 < what does that mean? (07)
    Never mind, it's normal.
    PLEASE HELP ME..
  11. #11  

    Default Re: Downgrading

    Quote Originally Posted by AhmadS3 View Post
    My IMEI is *************** / 07 < what does that mean? (07)
    Never mind, it's normal.
    PLEASE HELP ME..
    07 means software version number it is called Sv number

    reflash the 4.3 firmware again then go to the recovery and clear cache and data
    you must backup the efs folder, if you decide to downgrade
    Dont' Forget to press Thank you button and like button when you get an answer
  12. Thread Author  Thread Author    #12  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    07 means software version number it is called Sv number

    reflash the 4.3 firmware again then go to the recovery and clear cache and data
    you must backup the efs folder, if you decide to downgrade
    Weird, my IMEI is okay but I have no signal.
    Status:
    Network: Unknown
    Service state: Out of service
    Mobile network state: Disconnected
    IMEI: *************** (15 digits)
    IMEI SV: 07
    Device status: Official
    My IMEI is okay why am I having that issue? I flashed the correct firmware for my region.
    EDIT: I opened the dialler and typed in *#0011# the IMEI was:
    IMEI cerfi: FAIL what's that? How can I fix it?
  13. #13  

    Default Re: Downgrading

    Quote Originally Posted by AhmadS3 View Post
    Weird, my IMEI is okay but I have no signal.
    Status:
    Network: Unknown
    Service state: Out of service
    Mobile network state: Disconnected
    IMEI: *************** (15 digits)
    IMEI SV: 07
    Device status: Official
    My IMEI is okay why am I having that issue? I flashed the correct firmware for my region.
    EDIT: I opened the dialler and typed in *#0011# the IMEI was:
    IMEI cerfi: FAIL what's that? How can I fix it?
    1, remove battery from the phone and DO NOT PUT BACK IN for the remainder of these instructions
    2, underneath the battery on the phone is the imei# and serial#
    3, you need the serial# and leave the battery out for this task
    4, now start Kies that is on your P.C and make sure you have a internet connection
    5, from the menu bar go to Tools and select firmware upgrade and initialization
    6, enter the model GT-I9300 (make sure its CAPITALS GT-I)
    7, enter serial# (CAPITALS again)
    8, press OK to initalize (dont worry you should not have a battery in )
    9, this will now give you the string = Initialised version PDA:*** / PHONE:*** / CSC:*** (***) this is what we want to see
    start update

    Dont' Forget to press Thank you button and like button when you get an answer
  14. Thread Author  Thread Author    #14  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    1, remove battery from the phone and DO NOT PUT BACK IN for the remainder of these instructions
    2, underneath the battery on the phone is the imei# and serial#
    3, you need the serial# and leave the battery out for this task
    4, now start Kies that is on your P.C and make sure you have a internet connection
    5, from the menu bar go to Tools and select firmware upgrade and initialization
    6, enter the model GT-I9300 (make sure its CAPITALS GT-I)
    7, enter serial# (CAPITALS again)
    8, press OK to initalize (dont worry you should not have a battery in )
    9, this will now give you the string = Initialised version PDA:*** / PHONE:*** / CSC:*** (***) this is what we want to see
    start update

    I am afraid that I can't find the serial & IMEI. \:
  15. #15  

    Default Re: Downgrading

    Quote Originally Posted by AhmadS3 View Post
    I am afraid that I can't find the serial & IMEI. \:
    you can see it form here
    DO NOT POST YOUR IMEI NUMBER HERE
    Downgrading-picture009gl.jpg
    Dont' Forget to press Thank you button and like button when you get an answer
  16. Thread Author  Thread Author    #16  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    you can see it form here
    DO NOT POST YOUR IMEI NUMBER HERE
    Click image for larger version. 

Name:	picture009gl.jpg 
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ID:	118365
    Thanks for trying to help me, but I don't have a sticker. I can see my S/N but not the IMEI. I bought this phone from a shop in my village.
  17. #17  

    Default Re: Downgrading

    Quote Originally Posted by AhmadS3 View Post
    Thanks for trying to help me, but I don't have a sticker. I can see my S/N but not the IMEI. I bought this phone from a shop in my village.
    the imei number will be on the phone packing cover
    Downgrading-uk-eu-accessories-i9300-box-package-blue.jpg
    Dont' Forget to press Thank you button and like button when you get an answer
  18. Thread Author  Thread Author    #18  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    the imei number will be on the phone packing cover
    Click image for larger version. 

Name:	uk-eu-accessories-i9300-box-package-blue.jpg 
Views:	30 
Size:	45.0 KB 
ID:	118367
    I bought the phone without the packing cover, anyways my IMEI is correct.
  19. #19  

    Default Re: Downgrading

    Quote Originally Posted by AhmadS3 View Post
    I bought the phone without the packing cover, anyways my IMEI is correct.
    Then reflash again with odin then clear cache and data

    Press THANK YOU and LIKE button if you gets the answer
    Dont' Forget to press Thank you button and like button when you get an answer
  20. Thread Author  Thread Author    #20  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    Then reflash again with odin then clear cache and data

    Press THANK YOU and LIKE button if you gets the answer
    Are you sure it will work?
  21. Thread Author  Thread Author    #21  

    Default Re: Downgrading

    Quote Originally Posted by mobilecrackers View Post
    Then reflash again with odin then clear cache and data

    Press THANK YOU and LIKE button if you gets the answer
    I am done with that, still showing not registered on network. Downgrading is the only way I think. Help me..
  22. #22  

    Default Re: Downgrading

    Quote Originally Posted by AhmadS3 View Post
    I am done with that, still showing not registered on network. Downgrading is the only way I think. Help me..
    final touch
    use pit file+ firmware

    do not downgrade , there will be away
    Dont' Forget to press Thank you button and like button when you get an answer
  23. #23  

    Default Re: Downgrading

    Quote Originally Posted by AhmadS3 View Post
    I am done with that, still showing not registered on network. Downgrading is the only way I think. Help me..
    GT-I9300_mx_20120220.zip - 16gb
    GT-I9300_mx_20120322.zip- 32gb
    GT-I9300_mx_20120329.zip - 64gb

    flash this pit file with the 4.3 firmware
    Dont' Forget to press Thank you button and like button when you get an answer
  24. Thread Author  Thread Author    #24  

    Default Re: Downgrading

    Can you tell me what's that? Before I flash them?
    EDIT: What one should I flash? My device is 16GB, should I flash the first one or the three files? And sir if you can, give me instructions on how to flash them via Odin, do I have to tick anything or untick?
  25. #25  

    Default Re: Downgrading

    Quote Originally Posted by AhmadS3 View Post
    Can you tell me what's that? Before I flash them?
    EDIT: What one should I flash? My device is 16GB, should I flash the first one or the three files?
    you need to flash 16 gb pitfile if your device is 16gb

    flash the 16 gb pit file with firmware with odin

    tick Auto reboot , Re-partition, F-rest time
    Dont' Forget to press Thank you button and like button when you get an answer
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