force headphone mode

When I plug in the 3.5mm jack and play back media, headphone mode keeps toggling, resulting in audio cutting in/ out every second or so.

Is there a way to force headphone mode or disable the 3.5mm jack detection?

I tried a couple of apps and searched the web but people seem to want to force speakers rather than headphones, so no luck.

(Android 4.2.2 Samsung Galaxy Tab 3 Lite)