Hi at all,
this is my last contribute to custom developer/user of Meizu.
At this link you find all you need for flash and recovery
an bricked Meizu Pro5 (tutorials and demo firmware provided by Meizu) : http://pan.baidu.com/share/link?shareid=2811765927&uk=3540037637#path=%2Fpro5
You can download it from Mega (say thx to @trucmuchebidule abc XDA) : https://mega.nz/#F!R8dSiT5T!08LHl2JKm5_u579uyAWfEw
Enjoy, good luck with developing.