I have a problem with the root and the efs folder, help

Hi I have the Samsung Galaxy s5 New edition SM-G903M, what happened to me is that I root my phone but did not copy the efs folder and the root gave me the frp mistake and look how to fix it, what I did was change the firmware and I was solved but I delete the folder sais e been looking and found how to fix the problem it is that addresses be root and cell will not let me do I do ?, root as I fix it? What I can fix me or better took it to someone?
PD: I do not speak English

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