I was a bit shocked to see an advertisement pop up recently when I plugged my Galaxy S7 Edge into the supplied Samsung Fast Charger. The popup asked me if I wanted a Accelerated Charging Boost for 1 minute – and had some ads at the bottom.
It turns out that this is a feature of ES FileExplorer, the excellent, free, but now slightly creepy file manager for Android.
To turn this feature off, either unistall ES File Explorer, or go to the settings in ES FE and turn off the “Charging Boost” feature.
[update]: seems that we have been heard – ES File Explorer Update Removes The Adware Charging Screen