Default [Q] Unable to enter system

Hi everyone, hope anyone can figure out this issue as it is quite urgent for me.

Today I have tethered my phone to my laptop via USB and suddenly my samsung galaxy ace hang and I just removed the battery. Once u reinsert the battery and started it, it just shows the samsung logo and unable to enter the system. I have tried to enter recovery mode, but unsuccessful and I have tried to use Odin to reflash or recover the system and still the same. Anyone can help me in this issue?

Thanks for reading this.