Hard Reset Acer Iconia A1-810

[AC Question]

During a hard reset, my Acer Iconia A1-810, was already on part of deleting files, and began to make a looping, is there any solution to this?
Even if i turn off and then on he goes back to the part of deleting files.
Already left overnight to deleting files, and nothing.
Any help would be welcome, Thanks.