Hello!My device Build number is NX666J_ENCOMMON_V2.21 and the model is NX666J and the hardware version is NX666J_EUHW1.0I visit the official web site of the nubia redmagic for update and the website just have download link for NX666J_EU_UPDATE.zip and my phone is for Asia/ChinaSo how can I get the latest update for my device anyone can help me with it guys