Exynos Usb Device4000 Verified _hot_ Instant

Custom ROM flashing went wrong, corrupting the PBL (Primary Bootloader) or SBL (Secondary Bootloader).

You power off a Samsung Galaxy S8 (Exynos variant), hold , and release when you see the warning screen. After pressing Volume Up to continue, Windows Device Manager refreshes, and under "Universal Serial Bus devices" or "Samsung USB Device," you see "Exynos USB Device4000 Verified." This is the normal precursor to using Odin (Samsung’s proprietary flashing tool). exynos usb device4000 verified