Did I ruin my phone?

kiefchief109

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Dec 2, 2014
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I tried rooting my phone recently and now I have the black screen of death. All I can do so far is get to manual mode, but I can't get back into download mode at all it just goes back to blackscreen everytime. I've tried wiping all data and resetting to factory defaults with no results. My android is a SPH-D700. What are my options, if any? I really appreciate any input/help that's given.