This is why I root my phone and run custom, non authorized software. Even tho (luckily for me) my particular phone model has GPS problems. Tons of people returned them BC navigation doesn't work for shit. I kept mine.
Even still, if you have any type of smart phone and they are after you, you are screwed anyways. Ever heard of a "roving bug"? Its what cops use (illegally) to turn your phones microphone and camera on--even if the phone is off, as long as the battery is in they can see and hear whatever your phone does.
I flash new ROMs and wipe daily so even if they were putting firmware on my phone, they'd have to reinstall it every day. Plus I have these custom quick actions; I can turn off certain things (GPS, data, NFC, Bluetooth, whatever) and even if an app has permission it can't use them if I have the master turned off.
I wouldn't worry about cops using them to find you, or single you out BC of posting pics on here. Unless you live somewhere illegal and are posting pics of a 3 or 400 hundred plant operation and post daily your pictures of stacks of blunts, money, and bitches, then you have nothing to worry about. Not BC they don't have anything better to do.
BC they're lazy, and your 3-10 plants won't get them promoted.