my phone is stuck in could not do normal boot ooin mode. What do i do?

[AC Question]

it was off when i woke up this morning and when i turned it on that is what i got

 

[B. Diddy]

Welcome to Android Central! Which phone?

 

[Christian Spiotta]

I have same problem. Note 4 crashed. then phone writes;

Could not do normal boot
ddi : mmc _read failed
ODIN MODE (HIGH SPEED)
PRODUCT NAME:SM-N910T
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Custum
REACTIVATION LOCK: ON
KNOX WARRANTY VOID: 0x0
QUALCOM SECUREBOOT: ENABLE (CSB)
RP SWREV: S1, T1, R1, A2, P1
SECURE DOWNLOAD : ENABLE
UDC START

Downloading...
Do not turn off target!!