Dell power manager stopped working

Hello,

I've been using this charging profile on my XPS 15 since I got this laptop. As of about half a year ago, this feature stopped working and the laptop keeps charging to 100%.

This software is nothing more than a wrapper of setting the settings in the BIOS. I've always kept the BIOS up to date by updating it almost as soon as the updates are released.

First there's this security patch that disables undervolting (BIOS version 1.20 and newer) and now this... Reminds me a lot of Apple's past with pretty much ruining their old devices so that you buy a new one..