[Kandac3]

This is what my phone says....

Could not do normal boot.
ddi : mmc_read failed
0DIN MODE
PRODUCT NAME: SM-G900V
CURRENT BINARY: SAMSUNG OFFICIAL
SYSTEM SATUS: Custom
REACTIVATION LOCK(KK): OFF
QUALCOMM SECUREBOOT: ENABLE (CSB)
RP SWREV: S1, T2, R1, A2, P1
SECURE DOWNLOAD: ENABLE
UDC START

THEN IT HAS THE LARGE GREEN ANDROID ICON AND UNDERNEATH IT, IT SAYS... DOWNLOADING... DO NOT TURN OFF TARGET!!

this is my boyfriends phone he thinks that when he was turning it on he accidentally rebooted the phone.. what do i do??

[Rukbat]

"ddi : mmc_read failed" "mmc" is the phone's internal storage. It sounds like a hardware failure. (BTW, "rebooted" simply means "turned it back on" - so of course he rebooted it when he turned it on.)

[Kandac3]

So where do I go from here? I have read some other posts on this site and most of it is like another language to me. :/

[Rukbat]

You go to a repair shop and see if they can replace the motherboard.