any one knoe how to downgrade from to 4.5.7l…my phone has the 4.5 version in spanish and i upgrade to 5.1.50 and only has english. i try to downgrade but always get firmware corrupt, anyone know how can i do it succesfully please…im from mexico and there is no issue for me but im a reseller and the customers look in spanish…please. i try change id product and nothing happen, using adb like xda forum, and just cant…help please

Spanish please, thanks you

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