I can´t root on -ampe A91

[link5]

Thanks athos, i'll try my luck do this, and will comment on the results.

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Hi, I tried the tutorial to create a CWM but when MKT create tools gives me a series of errors.
--- ERROR: find KernelGZ
--- ERROR: no split boot image

And going into the folder MID_150408_ForFlashtoolFromReadBack_150603-024859 there is only one file recovery:
factory_NONmodified_recovery.img.

What am I doing wrong?
Can you help me find a solution?

The other link you offer me is to lower the google sevice, and putting is that you have to go and look at what is appropriate for my device, but I have installed none.

thanks