There's several links provided by that answer which detail how to recover a Dell laptop from a corrupted BIOS update.

If you own a Dell PC, you might want to be a bit more careful with installing the latest system updates. According to multiple reports on social media, there’s a new BIOS version that could end up ...

We've received a slew of tips this morning that Dell's latest BIOS update for the Alienware M15x laptop is causing some pretty ugly issues. According to reports this is a different sort of update, run ...

As users, we’re generally conditioned to implicitly trust software and updates that come from the people who make our computers. But those people are also, well, people, and sometimes make mistakes.

Five new security weaknesses have been disclosed in Dell BIOS that, if successfully exploited, could lead to code execution on vulnerable systems, joining the likes of firmware vulnerabilities ...