Xiaomi Mi4 Problem

Sep 12, 2015
Hi I've just received a xiaomi mi4. The problem is that I suspect its doesn't have an original rom. In fact I've noticed these issues.
The button MI account MI credit and MI cloud if pressed do nothing. It had built in a lot of app unwanted like DU battery and DU game boost and so on. Anyway it's different from my other xiaomi I buy in China. It could be because the shop ready installed a cancro rom? How can I fix the original MIrom. It said I have 66.44.44 and no update. Thanks a lot

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