Samsung Galaxy S9+ (SM-G965F) TWRP fails for reason unknown

/e/OS Devices Samsung
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Hi @aibd,

I can’t login to TWRP screen using easy installer after the download mode. I’m in HK and got that EMEA exynos S9+ SM-965F (grey import). I don’t know if it’s becoz of the regional lock as you mentioned but I don’t see RMM State at all. I guess it’s not a problem.

I did get into the TWRP screen once when I followed the steps in the below link for old phone SM-J500FN, of course with update img / tar files for S9+:

However, I noticed I forgot to download the /e/ zip file for S9+ at that time and I chose to reboot it to the system.

When I compared the /e/ installation for old model SM-J500FN with the updated instruction for command line installation for S9+ (https://doc.e.foundation/devices/star2lte/install), I found that I needed to install a custom recovery by heimdall. But this step was not shown in the installation guide for SM-J500FN. So my questions are:

  1. Can I just follow the old installation guide for SM-J500FN but with the update files for S9+?

  2. I notice the difference on “wipe” the data on the phone SM-J500FN as compared to the official command line installation for S9+. Should we follow the memory wiping guidelines of SM-J500FN for S9+ as below?

    WIPE Screen
    WIPE Screen1836×3264 220 KB

  3. If I wipe away all the data but fail on the installation at the end, will I still be able to reboot back to Samsung OS? Is the disc image file “recovery-e-0.23-q-20220406175186-dev-star2lte” the same as the Samsung ROM file downloaded from sammobile site? The Samsung ROM file for S9+ is missing on the sammobile site.

  4. Is the command line installation the only way to install /e/ OS on S9+?

Thanks so much for your assistance and patience.

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