Charging Problem

[emi539]

Hi i got lumia 620 for like 6 months everything goes okay but suddenly today when i was trying to unlock my phone nothing happend , yesterday i had like 30% battery so i thought that i would need to charge it while i putted the cable nothing happend still black . Also removed and putted again the battery and still same thing.
What should i do ?

 

[emi539]

Already fixed , i let my phone charging for like 30min and it booted up automaticlly