Does anybody why my Samsung a40 phone briefly in red text say "The phone is not running Samsung’s official software." and then booting to Download mode. I got this error after trying to flash Twrp.

  • 2
    TWRP is not an Samsung official software. Even if you failed to flash TWARP completely at least some change seem to be written -> the software no longer in a genuine state.
    – Robert
    Sep 10, 2021 at 15:35
  • already linked on your other question one can't install TWRP on RMM state prenormal, your only chance is flash full stock ROM from Odin and wait 7 days with registered SIM card until device gets unlocked, then read carefully instructions how to unlock bootloader correctly without activating vaultkeeper
    – alecxs
    Sep 10, 2021 at 16:16
  • This answered my question: sammobile.com/forum/threads/…
    – Urmom
    Sep 11, 2021 at 9:43


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