But someone on the internet is WRONG!
Most people have never walked the floor of an Asian consumer electronics factory but a recent Engadget article titled “Pegatron employee spies a pile of iPhone 5Cs, all warming up for September” is misleading and doesn’t correctly identify what is actually going on in the picture (above).
What usually happens when after a mobile electronic device is assembled (if the company is willing to put in the QA time and money) is a battery of tests. The first test is a hot/cold cycle, the device in question is put on a conveyor belt and frozen and baked. If the device doesn’t survive this, it would never have survived a cold winter walk or sitting on your car’s dashboard in summer. Usually 100% of devices are tested this way, not just a random sampling.
Next, if you’re Apple, you color calibrate your LCD panels. Most companies do not do this however.
And lastly, what the picture above *actually* depicts is usually a self-diagnostics. Employees will bring assembled devices to a rack and plug them in. The diagnostic takes a few minutes and when it’s complete, the device in question is put on a tray for shipment.
So no, they’re not “warming up” phones here. That part already happened. Get on my level, Engadget.