Failed BIOS update - Black screen - Dell G15 5155 Ryzen edition

I'm lost

Got a BIOS update through Dell support assist. After download and installation, when it tried to reboot, I'm assuming something went wrong and now it's stuck on a black screen. 

No splash screen, fans spinning, keyboard backlight is on, caps lock on but unresponsive.

Sometimes I get 3-4 lights from battery LED.

I tried to remove battery and hold power button. Tried to access BIOS recovery through Ctrl+Esc still nothing. Tried connecting a new display, no signal. This model doesn't have a CMOS battery as well. 

Anyone has an idea on how to solve this?