![Rollback the BIOS | How to Update BIOS on a HP Elitebook 840 G1 G2 G3 G4 G5 G6 G7 Notebook PC - YouTube Rollback the BIOS | How to Update BIOS on a HP Elitebook 840 G1 G2 G3 G4 G5 G6 G7 Notebook PC - YouTube](https://i.ytimg.com/vi/gfQStS9v5ss/maxresdefault.jpg)
Rollback the BIOS | How to Update BIOS on a HP Elitebook 840 G1 G2 G3 G4 G5 G6 G7 Notebook PC - YouTube
![HP EliteBook 8xx G6, ProBook G5, ZBook 14u, 15u G6 Mobile Workstation PCs - BIOS Update Denied When Downgrading BIOS to Version 01.01.06 | HP® Customer Support HP EliteBook 8xx G6, ProBook G5, ZBook 14u, 15u G6 Mobile Workstation PCs - BIOS Update Denied When Downgrading BIOS to Version 01.01.06 | HP® Customer Support](https://support.hp.com/doc-images/993/c06433177.png)
HP EliteBook 8xx G6, ProBook G5, ZBook 14u, 15u G6 Mobile Workstation PCs - BIOS Update Denied When Downgrading BIOS to Version 01.01.06 | HP® Customer Support
![My HP laptop (elitebook 840 G6 core i5 8th gen) been updating for 4 hours and i think it's stuck (?). It says firmware update. First it was updating my system BIOS My HP laptop (elitebook 840 G6 core i5 8th gen) been updating for 4 hours and i think it's stuck (?). It says firmware update. First it was updating my system BIOS](https://preview.redd.it/my-hp-laptop-elitebook-840-g6-core-i5-8th-gen-been-updating-v0-dhxaple8fv191.jpg?auto=webp&s=bee7be4b7ad8823cff8421beec5835e4923ff81d)