I can confirm this last update completely killed mine as well, speed charger or any other by the way...
You'll find me in another post, I already had the overheating, freezing, crashing and rebooting issues, the camera issue, plus buzzing speakers and flickering screen but since I am travelling all the time, constantly on the move, I had to learn to live with it as it's my only personal mobile device I have with me just now.
It would sometimes crash and wouldn't be able to turn it back on, and then my only solution was to wait for the battery to go completely flat (so I would always keep the battery between 0 and 20-25% so I wouldn't wait for too long, it's a big battery!!!) but this happened to me again after the update (which I was still kinda hoping it would at least make it more stable, although I already knew I had a faulty device at that point), I once again couldn't turn it on at all, so I waited for the battery to completely drain and I can't charge it anymore!
I plug it, the LED goes solid red with nothing on the screen, but it never goes to orange, never shows anything on the screen, I still can't turn it On, and when I press Power+Volume down for 10 seconds or a bit more, the LED even switches Off, and from that point, there is no sign of life at all.
I could unplug and re-plug it to the charger, this time the LED would even show anything. Wait for a couple hours and the solid red LED shows up again when you plug it in, but it's still doing nothing else... Absolutely gutted with my purchase, the experience and the trouble it got me into so far, this model is a nightmare and ASUS UK and their reseller are completely dodging the case, throwing the case at each other back and forth and not willing to take any responsibility, absolute nightmare.
Oh well, at least it can't get any worse now I guess, can it?
