According to macrumors, foreign users reported that MacOS Catalina 10.15.6 successfully fixed a bug, which prevented some USB 2.0 devices from working properly on the 2020 MacBook Air and MacBook Pro. Don’t miss it.
Apple said in the release notes for the MacOS Catalina 10.15.6 update that “solves the problem that some USB mouse and touchpad may lose connectivity,” and that people who encounter that particular issue have confirmed that their accessories now connect successfully.
This error was first discovered by 2020 MacBook Air and MacBook Pro users. They found that USB 2.0 devices could not work normally on 2020 macbooks, and the conditions included crash, device failure, etc. Affected users cannot be repaired by SMC reset, security mode, disk tool repair, etc. The only appropriate fix is to use a more expensive thunderbolt 3 hub instead of a usb-c hub.
It house understands that the problem affects a variety of devices, including keyboards, but it doesn’t seem to affect devices with USB 3.0 or 3.1 interfaces. Meanwhile, Apple has not added a fix to Big Sur.
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