A750g dead boot exynos 7885

[eldon301]

Hello I have been working on dead boot repair for A750G was on U1, I tried splitting my appropriate sboot, but fails at part4 which is bootloader, transfer pass on bl1 bl2 and 3, could someone help me find correct offset for this device, currently am not even sure if my cfg file is correct. Here is my sboot bin am using https://drive.google.com/file/d/1CcEqe4MH__APK7H42aP3H2KGdqkAi-xx/view?usp=drivesdk

 

[MrJavi]

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."

 

[eldon301]

@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.

 

[MrJavi]

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

 

[eldon301]

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/

 

[eldon301]

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