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Thread: Cant receive OTA update

  1. #61
    Administrator
    Join Date
    Jul 2012
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    8,162
    Quote Originally Posted by audecosta [ Login above or register to see download links. ]
    Edited

    Its all done.. thx bro

    [ Login above or register to see download links. ]
    Thanks for your feedback: enjoy your device

  2. #62
    Junior Member
    Join Date
    Apr 2020
    Posts
    2

    Question Your expert eye would be apprecaited please - S9+ downgrade from Android 10 to 8...

    Hi from 'Down Under' Australia henklbr,

    INTRO:
    On reading some of your threads for answers I'm impressed with both your knowledge and willingness to help others in difficulty. I'm new to firmware updating on Androids. However, I understand the basic concepts as have a Wintel server engineering background. I've also done a lot of research over last week and feel ready to perform my first and now essential Android flash!

    REQUESTS:
    I'm hoping you will be willing to cast you expert eye over the phone details uploaded for my help my S9+ SM-G965F purchased here in Australia and have uploaded jpg's with detail.
    - Barneys_S9plus_Settings.jpg
    - Barneys_S9plus_version.jpg
    (I can't work out how to upload. Sorry. )
    1. Have I downloaded correct firmware for my phone as indicated further down?
    2. ditto for ODIN version and USB drivers?
    3. Is there anything else you might suggest to ensure a successful downgrade from Android v10 to latest Android v8?
    4. Am I correct that flashing with v8 firmware won't trip the warranty cancelling Knox e-fuse or prevent later OTA Update back up to Android v10+ if a call recording issue is addressed by a later Samsung update?
    5. So long as I don't brick my phone or trip the Know e-fuse I should be able to use ODIN to flash back to later Android v10 firmware if needed?

    THE REASON:
    I find I am forced to do this as an essential call recording app won't work on the latest latest Android v10 or earlier v9 I had used OTA to update thru before restoring all apps and data etc. This discovery was a bomb shell as I have a permanent disability that prevents me taking notes whilst on a call so a call recorder is a must. In troubleshooting I discovered Google had removed required permissions from Android 9 and up. The only solution is to either root or downgrade to latest Android v8 - and Samsung Support told me it could not be done by owners!!!

    Then after much research I discovered SAMMOBILE's excellent resources, obtained foot in the water subscription and decided to have a go in earnest. I'd sure like to prove Samsung Support incorrect

    CORRECT SAMMOBILE FIRMWARE?
    I've already downloaded from the firmware archive what I think are my current Australian S9+ v10 and latest target v8 firmware versions:
    • Current : 10_G965FXXU8DTC5_G965FOXM8DTC6_XSA.zip
    • Target : 08_G965FXXS2BRJ6_G965FOXM2BRJ3_XSA.zip

    Other ODIN support files:
    • Odin3-v3.14.4.zip
    • SAMSUNG_USB_Driver_for_Mobile_Phones_200429.exe

    PROCESS STEPS:
    I've also noted your basic tutorial found in thread 13. [ Login above or register to see download links. ]
    How to flash firmware to your phone:
    1. Extract (un-rar) the firmware file (i.e. to folder c:\Odin) ***
    2. Download Odin3-v3.14.4
    3. Extract Odin ZIP file (i.e. to folder c:\Odin)
    4. Open Odin Odin3-v3.14.4
    5. Power OFF phone
    6. Reboot Phone in Download Mode: push Bixby + Volume Down + Power buttons, follow instructions screen (PowerUP), connect phone to PC with ORIGINAL USB-cable
    7. Wait until you get a blue sign in Odin
    8. Add the firmware files to their designated slots

    Put ALL 4 files in the desired slots at the same time in Odin
    BL -> BL
    AP -> AP
    CP -> CP
    CSC or HOME_CSC -> CSC

    Note regarding CSC-files:
    CSC_OXM -> phone will be WIPED/RESETTED
    HOME_CSC_OXM: data will stay intact

    1. 9. Make sure re-partition is NOT ticked
    2. 10. Click the start button, sit back and wait few minutes

    I do hope my long post is not an annoyance but I'm new to this and in trepidation!
    would really appreciate your expert guidance - before I push that fateful button from which there might be no going back!! Gulp.

    Best regards,

    Barney
    From 'Down Under' Australia

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