Thank you! We have received the required details. We will work towards a resolution. In the meantime, you may also receive assistance or suggestions from the community members.   Update=Resolved-Follow the instructions in Dell's service manual to perform a hard reset and drain flea power,  to fix the issue. 
Hi all, My G15 5511 no longer powers on after installing the latest BIOS update yesterday (09 March, version 1.11.1 I believe). The installation did complete successfully, and I used the laptop for the rest of the day without issues and shut it down overnight like normal. This morning, it doesn't power on. Normally just opening the screen will cause it to power on, but nothing happened this morning. Pressed the power button--nothing. Held the power button down for 20 seconds--nothing. Tried to reset the RTC--still nothing. Tried CTRL + ESC, and that didn't work either. The battery indicator light doesn't light up, and the AC adapter remains cold even when I leave it plugged in for a while (but the light on the adapter is lit up). I've never seen a computer brick itself so thoroughly before. Browsing other sites, I see that a few other people with Inspirons/G15s have had the exact same problem as me in the last couple of days, which makes me suspect it's maybe not a hardware failure. Any help is appreciated.
Inspiron G15 5511, does not power on, #2