![]() ![]() ![]() The internet says it has to do something with touchbar unit, but I didn’t have any issues before. I can also use my mac booting from portable usb windows drive but again touchbar, keyboard backlight and sound does not work (everything used to work from the same usb drive before the critical software thing happed). However, I am able to use my mac from safe boot mode but touchbar, keyboard backlight and sound does not work from safe mode. I also tried factory OS install (shift option command R) but fails after downloading OS. I have also tried the clean install with and empty disk (command + R) but shows same screen. I’ve tried updating with wifi, personal hotspot and with LAN adapter but I get same screen. When I turn on it says a critical update is required but keeps saying that an error occurred when I try to install. This happened to me after few days of using the new macOS Catalina.
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