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A750g dead boot exynos 7885

Discussion in 'Android Lounge' started by eldon301, Mar 10, 2021.

  1. eldon301

    eldon301 Lurker
    Thread Starter



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  2. MrJavi

    MrJavi Android Expert

    Welcome to Android Forums @eldon301 :)

    Frija

    https://forum.xda-developers.com/t/tool-frija-samsung-firmware-downloader-checker.3910594/

    "Auto mode detects any Samsung Phone Model and CSC and finds all the required information directly from Samsung Server.
    Frija downloads firmware directly from Samsung FUS (Firmware Update Server) without any third party websites being involved. It can pause/resume firmware downloads, even after network interruption, or app restart (if download was interrupted).
    Frija comes with built in Support form, through which you can reach out to developer about any issues or bugs. Frija has built in App Updater, whenever new release of Frija is available users will be able to update to latest version of the app.
    Frija does not have any Background or Startup services, which some users might be concerned about."
     
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  3. eldon301

    eldon301 Lurker
    Thread Starter

    @MrJavi These are the files i am trying to cut from my sboot, below picture show what I need to cut from sboot and where my error is in multidownloader tool.
     

    Attached Files:

    #3 eldon301, Mar 11, 2021
    Last edited: Mar 11, 2021
    MrJavi likes this.
  4. MrJavi

    MrJavi Android Expert

    I have little experience with Samsung sboot. I'm familiar with Odin "sw rev check" fail when attempting to downgrade the bootloader. Perhaps it would help if you explain why you feel cutting files from the sboot partition is of necessity? Are you familiar with the terms dm-verity and DRK ? :(


    https://source.android.com/security/verifiedboot/dm-verity


    https://docs.samsungknox.com/admin/whitepaper/kpe/hardware-backed-root-of-trust.htm#DRK


    https://source.android.com/security/verifiedboot/verified-boot
     
    #4 MrJavi, Mar 11, 2021
    Last edited: Mar 11, 2021
    eldon301 likes this.
  5. eldon301

    eldon301 Lurker
    Thread Starter

    Thanks for asking @MrJavi I have a a750g which is in exynos 7885 mode. And need to know the correct offset for each parts needed. In order to get into download mode. I know the correct binary It was on (U1). Trying to follow these steps here, but I don’t know correct offset and don’t even think my cfg.file is correct, am just hoping to get some help. Am not a quitter and have been going at this project for some time now. Hopefully I get to try out some custom roms https://forum.xda-developers.com/t/...evices-with-deleted-bootloader-sboot.3573865/
     
    #5 eldon301, Mar 13, 2021
    Last edited: Mar 13, 2021
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  6. eldon301

    eldon301 Lurker
    Thread Starter

    Can you assist me with some information if you understand sboot mr @MrJavi
     
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