samsung galaxy mini 2 won't start

[cpper]

Hi
Today I was on whatsapp on my samsung galaxy mini 2.I discovered than the wifi was not working anymore so i turned it off and on,but it turned off automatically.So i restarted the phone,long pressing the power button.
But the phone didnt start anymore.What happend ? I tried to plug the battery off and on,but still not opening...
The charger was plugged in when this happened...

Any idea ?
Sorry for my english but i'm freaked out

 

[srkmagnus]

Is the device charging when plugged in (sounds or notification light)?

Try leaving it charged for a few hours then try again.

Sent from my SPH-D710 using Tapatalk 2

 

[cpper]

Thanks for the answer
No,no sign when plugged in I tried another battery,but still not starting
A thing i discovered,when i press the power button,or any combination,i can hear a quietly "pulse" sounds from the speaker,until i release the power button :|