Bluetooth keeps turning on, won’t stay turned off after update to Marshmallow [OnePlus 2]

Finally, Android Marshmallow update for OnePlus 2. Immediately my phone is buttery smooth again.

Problem

Everything was fine but Bluetooth just keeps turning on, won’t stay off. Tried several other potential fixes like clearing Bluetooth Share cache and Network Settings. But problem still persist.

bluetooth

Solution

Thanks to a post on StackExchange, turns out it’s due to an errant app “Firechat”. Uninstalling it seems to fix the Bluetooth issue.

If you’re facing the same problem, try this first.