The black HTC One S uses a process called micro arc oxidation (MAO) to harden its aluminum unibody and make it feel like ceramic. We've recently experienced some chipping on the finish of one of our review units, so we reached out to HTC to find out if this is a known problem. Turns out we're not the only ones to report the issue, and while rare, the company's gone ahead and tweaked its manufacturing process and is offering to swap affected phones for free for existing customers. Here's HTC's statement: HTC is committed to delivering a high quality product and grea
