A few weeks ago, a user of Twitter found out how if an iPhone is connected to a Wi-Fi network with the name "% p% s% s% s% n" Without the quotes, the device lost all Wi-Fi connectivity permanently, so it was a very dangerous error that Apple seems to have solved with the latest beta of iOS 14.7.
According to YouTube zollotech through the last video you have posted on your channel, Apple has patched this issue, without talking about him in the details of the last beta that he launched a couple of days ago, a version that is only available for developers.
When it was discovered this failed, many were curious users who they rushed to prove it, leaving your devices without Wi-Fi connection. The only solution, at least for most of the curious who tried this function, was going through reset network settings. In this way, Wi-Fi connectivity was available again on the device.
Apple has been testing iOS 14.7 for several weeks both among the developer community and among users of the public beta, so it is a matter of days, that from Cupertino release the final version, a version that will serve as a step, to solve the high battery consumption that some iPhones have after updating iOS 14.6.
iOS 14.7 will almost certainly be the latest update the iPhone receives before iOS 15, as long as another similar security issue is not detected again. Presumably, this problem is also resolved in the latest beta that Apple has released of iOS 15, both the version for developers and the version for users that are part of the public beta program.