Razr xt910 JB 4.1.2 stock to MIUI V5 ?

Apr 21, 2014
could someone help me? I'm using version 4.1.2 JB on my XT910 and would like to install the MIUI v5. Whenever I install MIUI with Safestrap or BBM my XT910 gets the black screen in folders without transparency effect, I wonder whether it is cuz my stock ROM is Brazilian and not in Europe and Asia.