Yari please help

[satch1234]

Your phone is shorted,take battery out from the phone and go to some private repair shop.

[madona33]

Many thanks satch1234.

Any idea how did it happen?

[satch1234]

Many thanks satch1234.

Any idea how did it happen?

Maybe your phone was damaged by water or some other liquid and now it make short contact somewhere or usb connector is shorted when you tried to recharge the phone.The worst option is that something is burned during charging.
Good luck,
Satch

Edit: it is hardware problem so you can't fix it by flashing