Hey Jonatas, Please try this: Go to your laptop's BIOS and choose Restore Settings => Factory Settings. It should unlock your undervolt settings (at least it worked until v. 1.13.0).
Hello Dell Community, Unfortunately, I cannot downgrade the Inspiron G7 15 7588 BIOS, due to unsupported downgrade. It is currently on the latest BIOS version (1.14.0) and, in "Important Information", at this same BIOS version on Dell's website, it says: "Once updated, BIOS cannot be downgraded to any version before 1.14.0". I need downgrading because now my device runs hotter and I live in Brazil, a tropical country. And slower, consumes more battery and I know it may potentially decrease its lifespan. Please, Dell. You gotta give me - or, perhaps, us - reasons why this change was made and fix this problem. Either by creating a new BIOS version with undervolt back or giving instructions on how I can downgrade it without any risk or possible harm. Regards.
Inspiron G7 15 7588, cannot downgrade from BIOS 1.14.0