"Dell's latest BIOS update is bricking some machines – apart from a power light, they refuse to boot up at all, say users... Many of those who installed the update now cannot boot up their machines... The main model affected by the allegedly dodgy update is the Inspiron 20 3052, although a few users reported similar problems with Inspiron 3252s. As one forum wag noted: 'Some send out 'WannaCry', others send out BIOS upgrades'..." https://www.theregister.co.uk/2017/05/18/dell_bios_update_borks_pcs/
"Dell kills botched BIOS update that murdered punters' PCs 'Call our tech support... have you tried turning it on and off again?' Dell has finally 'fessed up about the BIOS update that borked some customers' PCs, and advised punters to do what many have tried so far without any success – contact its tech troubleshooters for resolution... 'Dell has stopped the push of the affected BIOS version and urges impacted customers to contact Dell Tech Support,' he added. The business has yet to tell us why this happened..." https://www.theregister.co.uk/2017/05/19/dell_kills_botched_bios_update_that_murdered_punters_pcs/
Never update drivers if it works. That's the particularly of the BIOS. A bad BIOS patch can brick your computer! And Dell pushed it out because??