How to recover data?

When i upgrade to 2.001.1 i lost all my music and i hadnt backup.is there a program that i can recover data?

... sorry but i don't think so

You can't recover lost data. You should've read the disclaimer, telling you that upgrading will format miniplayer ^^

I actually always keep a backup, just in case....

,ok i will search some tool in google

flash memory wont let you recover it , i dont think , I think that is dosnt just delete it off the index file , it also deletes it physically, Its the other way round for hard drives though , thast why they are recoverable

it cant be done just what lite says, its deleted physically, with hard drives this is different but this is flash, btw if you got your music on your m6 you should have it on your computer, or you deleted the files

Hardware differences do not matter that much, I would say. The Meizu seems to use a FAT32 filesystem, and that works the same way for deleted files, no matter if it's flash or magnetic.

Unfortunately the upgrade process not only FORMATS the memory (which is worse than just deletion), it probably actually REPARTITIONS the filesystem (because the firmware which sits at the beginning of the memory takes more space, and has to push user memory 'inwards' a little bit). Note that I'm speculating here.

You can however make a pretty good attempt at recovering basic files with a generic disaster recovery program... just don't write anything to the Meizu, and don't expect to recover everything intact. It's almost certain you will lose some of the files, and only get parts of others.

Don't lose hope though!