Greetings,

I've just bought my MX4 from china. The Os version is 4.5.7I off the box. I saw some specifications about international firmware that they don't have any chinese apps. Although mine is written as 4.5.7I i had alipay, weibo, baidu and some other chinese apps. And I want to update to flyme 5.1.6.0 G but i get the corrupt firmware error. Please help me fix this issue.