If your player is detected as a drive it's good!
Just download the correct firmware for your player:
http://en.meizu.com/downfile/S2004.6_Meizu_En.rar
(Please do double check the back of your player if there really is "SP" written, instead of "SL")
And just extract the contents of that archive to the root of your player. If all goes fine, it'll restart, you'll get some more white, then shut down in some 20 seconds or so, then when you start it, it'll be good.
