help whit install sonico mod audio in xperia z2 andorid 5.1.1

hello can you help me please? I try to install it on android 5.1.1 but it does not work I run out audio on cell follow the steps reindtale a rom prerooted without deleting user data, but still does not work, you help me? thanks this text translated it with google sorry if not well written.

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