Xperia ION root removed, battery run down to 0 percent and now Doesn't turn on help!!

hi guys i am roockie with the xperia ion I buy this phone to my brother but since i remove the superSU root first and then i wait until the battery run out to 0 percent to charge fully the battery again the phone Doesn't turn on anymore, i follow the steps to charge the phone 53 hrs to see the led lights and nothing happen, do you thing that the battery Doesn't charge? the phone is dead.

please help and thank you