Touchpad screen unresponsive and also black screen

Today, I updated my touchpad to the latest version. So during installation, I let it run and left it plugged into an outlet. However, when I came back to it an hour later, I just saw a black screen. I was able to reboot and see the HP logo again. But after booting, and seeing the lock screen logo, the screen would go blank after a few seconds. I did the USB recovery mode as well but I was presented with the PIN entry screen and I couldn't enter my PIN as well.
Any ideas on how to resolve this?
This is a brand new Touchpad and the only thing done here was update from the original firmware to a newer update and then now to the latest update.
I searched online and can't find anybody with a similar issue as this.
Also, tried using WebOS doctor but am stuck at the part where it is suppose to detect the Touchpad and cannot press "Next" to continue.
Post relates to: HP TouchPad (WiFi)

When you said "USB recovery mode", do you mean you tried to use the webOS doctor to restore it?
I'd try a simple reboot again (press and hold both the center button and the power switch together for over 15 seconds), and if this doesn't work, then the webOS doctor.
If the doctor doesn't work, and the device is still unresponsive, then call HP for a repair/replacement.
See my post at the top of this section on "How to doctor a TouchPad" for instructions.
WyreNut
I am a Volunteer here, not employed by HP.
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