I had to restart my MacBook Air and a lightening bolt and arrow came up on the screen, how can I turn on my Mac?
[Re-Titled by Moderator]
Original Title: i tried to start my macbook air and got a blank screen, then an arrow and lightening bolt
MacBook Air 13″, macOS 15.5
That indicates it is booting into Target Disk Mode.
If this is an Intel Mac, then you should just be able to hold the power button down until the laptop powers off. Then power on the laptop & it should boot normally. If not, then try performing a PRAM Reset (hold it for 2 chimes if possible). The laptop should now boot normally. If it does not, then most likely the "T" key is stuck.
That indicates it is booting into Target Disk Mode.
If this is an Intel Mac, then you should just be able to hold the power button down until the laptop powers off. Then power on the laptop & it should boot normally. If not, then try performing a PRAM Reset (hold it for 2 chimes if possible). The laptop should now boot normally. If it does not, then most likely the "T" key is stuck.
Just to add
If this is an Apple Silicon ( M1,M2,M3, M4 )
Thanks to @HWTech for this info 👍
NVRAM Reset Apple Silicon
In the Terminal application
Copy and Past the below command and press the return key
sudo nvram -c
Lightning bolt and arrow on MacBook Air startup screen
