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I have macbook air 2017 the wifi of my mac is not working . I changed the ssd and tried to install fresh installation via usb catalina version but when i boot the mac via usb after a proceess it show cricle with slash error . I tried many way as well as version of catalina but could not get it back .
Please help.
Hello AnilKush,
We understand that you're not able to install macOS Catalina using a USB stick. Take a look at the steps in the following guide on creating a bootable installer: How to create a bootable installer for macOS
See if those steps help to get macOS Catalina reinstalled. Keep us posted.
Take care.
Try using the USB port on the other side of the laptop.
Macs are very picky about the USB sticks used for booting plus the quality of USB sticks is extremely poor so try using another USB stick especially a different brand. Make sure to use the instructions @TammyW_03 linked for creating a bootable macOS USB installer.
Make sure the WiFi antennas were not accidentally disconnected from the WiFi card and try Internet Recovery Mode using Command + Option + R. You can also boot into Internet Recovery Mode by connecting the laptop directly to the router using an Ethernet cable and a Thunderbolt to Gigabit Ethernet Adapter.
Can't install mac os via usb
