Why my LG E612 won't start?

Hello

I have an LG E612 mobile, and when I press the power button I get stuck on the LG logo forever!!. When I plug it to the charger it is charging fine (while OFF).

The hard reset doesn't work.

I can't enter safe mode.

I can't enter emergency mode.

I can't root it because it won't communicate with the PC as it is not starting.

I have tried a lot of procedures to root it but with no success.