Apple was concerned about inflections after testing before iPhone 6 released
Tests that Apple conducted itself with its iPhone 6 models showed that they were easier to bend than the iPhone 5s. This would have been one of the major concerns for the company before the iPhone 6 came out.
The probability of bending was 3.3 times greater with the iPhone 6 and 7.2 times greater with the iPhone 6 Plus than with the iPhone 5s. This was confirmed by tests carried out by the company itself. This is stated in court documents that Motherboard publishes. US District Court judge Lucy Koh writes that one of Apple’s major concerns was that the iPhone 6 was apparently easier to bend than previous models.
Unsurprisingly, Apple’s own testing already revealed the greater bending probability. After the release, many reports about this appeared on the internet and this was also observed in third-party tests, after which it was referred to as bendgate. The iPhone 6 and 6 Plus are larger and thinner than previous models and the use of aluminum meant that the device did not spring back after bending, as happens with plastic. According to Apple, inflections were “very rare” in normal use.
Apple always denied that there were technical problems with the device, but six months after the release of the iPhone 6, the company did reinforce the circuit board to prevent touch disease. Several users of the iPhone 6 found that the touchscreen stopped working over time, which was because the Touch IC chip became detached from the PCB. The inflections would play a role in this. The users filed a class action lawsuit against Apple, claiming that the company continued to sell despite knowing the devices were susceptible to touch disease.