Why does my Samsung Galaxy S4 SGH-1337 keeps freezing at the AT& logo screen?

Hello,

, I restarted it yesterday and then it refused to go back to the main screen and always freezes at the carrier screen ..help me

thanks,

I didn't find the right solution from the internet.
References:
- http://ift.tt/2nBnJdP
- professional Landing Page Video Pricing

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