after many tries i dont have anymore chance to unlock my phone by code, how to resolve the message mep code (o left), my phnoe is storm 9500 and i think that now it is hard locked, please help me because my phnoe is new and i didnt have the chance to join it, thank you.

It's permanently locked. Nothing you can do now.

You need to find a shop that offers DM3 Unlocking. They will need physical access to the device via the USB port. You cannot do it yourself.