s6 won't fast charge or connect to pc so i have an at&amp;t s6. 

suddenly stopped fast charging. and when i say "stopped fast charging," i mean charges slower than molasses now. takes literally about 4hrs to charge from 80% to 100%.

tried multiple known good chargers and cables and verified with both another s5 and s6 activ. found that the computer won't recognize it anymore magically. 

i am rooted and have uninstalled a bunch of bloat. shouldn't matter right?

also in developer options- i can check usb debugging, but then in the secret menu (*0#*0) or whatever, mtp+adb is unchecked. if i check that, then go back to developer options, usb debugging is unchecked. 

I even pulled apart the phone and put in a new daughterboard in case the thing port is broken and put in a new battery both to no avail.
Had the same problem.. sm-920v
 Solved: Just cleaned the usb-charging port.. pc detect and fast charge working again..
Note: cache partition erase didn't work