My meizu m2 mobile phone not able to update a new or old flyme os versions and also I'm  facing some bug's issues like facebook  app not working , google contacts not able to synchronize,  fast charge drying,  some times mobile not charging if it's switch off means it'll work., sometimes mobile display flikring during the charge time.
My current os versions 6.1.0g
Can you please any one give me the solution....

Hello,
All these bugs are already reported in bug section,
Flyme will provide solution in the next update.

Hey, bug is already reported. Please wait for a fix.

thanks for your update friends ......

For downgrade, visit this thread, Downgrade process.

Hi Friend... Thanks for your response However, it's not working and when I trying to do your downward process it's shows like firmware not found !  
what I'm going to do? can you plz guide me to get out of this issue....
and I was tried rooting process also....

I'm downloaded 6.7.4.11G beta from default browser and it's saved in the same path only. if it's any necessary to change the storage path (Root directory?)...

It's seems very weird that lots of users has successfully downgraded their phone to lower version following the steps mentioned, but you said it's not working, huh, how's possible? Really you followed all steps properly? Remember first of all you need to log out from the account and also net should be turned off other wise downgrade will not work, also place the zip file inside the internal memory but not inside any folder. Recovery mode only works by then otherwise will not work.

You have placed the zip file inside the folder ucdownloads, Recovery will not able to find the file, place it inside the internal memory, means where all the folders are shown just by opening the file explorer. look at the pic I uploaded carefully you will then understand where to paste the file.