It is a shame, MX4 will be my last Meizu device. You are not capable to maintain an international support for us so you should sell your phones only in China.

We are not only asking for the latest version because of new functionalities, we are asking for a solution to all the critical bugs in our Phone with 5.1.5.0G "stable?" version.

I don't understand why so many delays in MX4 updates. MX4 is so different from all other Meizu phone models? What's the reason? Could you (Meizu) give us a complete and credible explanation?