Typically people aren't replacing the antennas or radio amps, so I'd keep the radiation issue in the theoretical bin. As for bad parts and bad repair jobs, sur

Typically people aren't replacing the antennas or radio amps, so I'd keep the radiation issue in the theoretical bin. As for bad parts and bad repair jobs, sure. I would think that owners are incentivized to buy parts that are safe and to install them correctly. Of course some battery batches will be bad, but that's true for authentic parts too. Remember the Samsung Note battery issues?