Phone lost USB connection abilities


Broken In
My SM-J701F (Galaxy J7 Nxt) suddenly stopped connecting to any PC I connect it with. I've tried changing PCs and USB cables, it just keeps charging itself and neither of them detect a connection.
The last time I had connected it was during a failed root attempt with KingRoot, but nothing seemed wrong that time.
I've tried restarting it and fiddling around with phone settings, even setting MTP doesn't work.
Please help.
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