1. Android Central Question's Avatar

    I have a Galaxy Note 4. It had 72% battery remaining.

    When my alarm went off today, whereas normally the screen illuminates allowing one to swipe the alarm off, today the screen wouldn't activate.
    I tried pressing the power button to start the screen, but no joy. Tried keeping it pressed to see if that would force the restart/power off option menu, but again no joy.
    I removed the battery and replaced it. No joy.
    I used a spare battery and it started up with a screen saying...

    Could not do normal reboot.
    ddi:mmc_read failed
    Product name: SM-N910F
    Current Binary: Samsung Official
    System Status: Custom
    Reactivation Lock: Off
    Knox Warranty void: 0x0
    Qualcom SecureBoot: Enable (CSB)
    RP SWREV: S1, T1, R1, A, P1
    Secure download: Enable
    VDC Start

    Do not turn off target!!

    It has now been downloading for over 3 hours.

    Does anyone have an idea what happened, what caused it, how long should the download take, if there is anything I should do or look for or do & is it likely to work again?

    Many thanks.
    06-02-2018 11:16 AM
  2. belodion's Avatar
    Try holding Power to power off, then power on normally from there.
    06-02-2018 11:35 AM

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