Are you sure you tried to install the correct BIOS version? The latest version I see on the 7510 support page here is 1.0.4. That would account for the failure, if you tried to install the wrong version. And in this instance it is a good thing it did not continue as you could brick the MB. My usual advice is that if the system is running well and the BIOS version does not address a specific problem you are experiencing then let well enough alone. The forum is full of users that rendered their systems unusable with a failed BIOS update. There are posts in the past from a Dell moderator that has never updated the BIOS and the system that moderator has runs just fine.
Hi so I tried recently installing the  1.0.7 BIOS update for my Vostro 15 7510 on the Support Assist app and it keeps telling me the update is failed. Is there a way to install this update, or do I even need the update? Any help would be appreciated.
Bios Update Fails