Samsung Duos 2 almost dead, what should I do?


AC Question

Samsung Duos 2 almost dead

Well i am stuck at the boot screen and i can see a red exclamation mark at the top left corner and i can not enter the recovery mode and when i plug it to my laptop, my laptop doesn't see that there is a phone plugged to it, i tried different plugs and different laptops and i checked that the mini usb plug of the phone work by charging it.
I can not do any thing in the phone except closing and opening it again