Root for ZTE Speed (N9130)

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Please !! I Need hel!!

I have a cell phone, ZTE speed (N9130). I bought it on Boost Mobile. Everywhere in the network I searched about free him bands, anywhere I found a way to do it ... out there, I do not remember where I found something that said I have to go to eMode, but the cell does not have that archive. how do I set the file again, if not let me make it root? I entered the setup and tried to reinstall the OS, but give me a scan did this:...
I'd appreciate any help you can give me.