Upgrade to Android 10, 11, or even 12 via LineageOS.
You missed the button combination transition in Step 6. If the stock OS boots even once without a root solution or DM-Verity patch active, stock recovery will overwrite TWRP, requiring you to repeat the flashing process. If you need help configuring your device, tell me: twrp-3.6.0-9-on7xelte.tar
Understanding the exact specifications of the file ensures you do not accidentally brick an incompatible device variant. twrp-3.6.0-9-on7xelte.tar Recovery Engine: Team Win Recovery Project (TWRP) v3.6.0-9 Target Architecture: Samsung Exynos 7870 Octa (64-bit) Upgrade to Android 10, 11, or even 12 via LineageOS
The device runs on a Samsung Exynos 7870 Octa-core processor and originally shipped with Android 6.0.1 Marshmallow, with an official update to Android 8.1.0 Oreo available for some models. Upgrade to Android 10
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