mobile

Hello,actually i had tried to root my samsung galaxy grand prime by the help of this xda site
http://forum.xda-developers.com/newt...1236&nocache=1
BUT!! after completing step 11,my mobile doesn't show the normal screen,instead it shows
THIS
""" Could not do normal boot
ODIN MODE
PRODUCT NAME: SM-G530H
CURRENT BINARY: CUSTOM
SYSTEM STATUS: OFFICIAL
KNOX WARRANTY VOID: 0X1 (4)
QUALCOMM SECUREBOOT: ENABLE (CSB)
RP SWERV: S1, T1, H1, R1, A2, P1
SECURE DOWNLOAD: ENABLE

Downloading...
Do not turn off target!!"""

so i don't know what to do now
SO I MESSED UP PRETTY BAD ACTUALLY!!!:crying::crying:
pls help!!
also i'm an amateur :confused: in "mobile rooting" and in mobile things so please tell me step by step what to do!!
Any help will be appreciated!!:good::good: