I got a hotair soldering station ima try my best :D But i think most of the cheap ones arent bga but look like this one:
I took a look into those “toy” tablets in the 40 bucks price range, most of them seam to have a clearly visible Wireless chipset for wifi/bt, guess ima try to desolder and hope it still boots after.
Cutting the antennas is far from removing the problem, even without antennas those chips still make a lot of noise in the 2.4ghz band. Id woud have the desolder the whole wireless chipset, i mean i have the soldering equipment for that, but i kinda doubt that a normal android will even boot after the Wireless chipset is gone :/
Audio Modem
quality meme