lg g flex stuck on lg logo screen. - LG G Flex

I turned my phone off this morning and when I tried to power back on it got stuck on the lg logo screen. I have tried hard resetting the phone. Nothing is working. I have never altered this phone, same as from factory. If I hold the power button for 10-15 seconds the lg logo will disappear then flash back for a second and the phone goes black. Once I hit the power button the lg logo screen comes up and it stops there. Please help me!!

http://guidebelajar.blogspot.com.tr/2015/09/guide-flash-lg-g-flex-kdz-method.html
I tried this and it worked for me

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