Macbook No Entry Sign

If your mac is using a firmware password the lock icon appears when you try to start up from another disk or volume such as an external drive or macos recovery enter the firmware password to continue.
Macbook no entry sign. I then tried booting to the recovery drive and got nothing. Thanks for the a2a. You don t say how old your macbook pro is so that could also be a factor. Mac os x has several bootup symbols including a universal prohibitory sign that indicates critical files are missing from the boot volume.
Checked the connection to the ssd and it s absolutely fine. Managing a prohibitory sign at os x bootup. This site contains user submitted content comments and opinions and is for informational purposes only. Every potential issue may involve several factors not.
I created a bootable usb using disk creator and attempted to boot from it so i can load the os onto the new drive. Macbook no entry sign at startup grey screen more less. This means one of two things. Model a1502 2 4 2 6 or 2 8 ghz dual core intel processor released october 2013.
Apple may provide or recommend responses as a possible solution based on the information provided. Macbook pro 13 retina display late 2013. When starting your mac if you run into a prohibitory sign and the system will not boot there are a couple of things you can try to address the problem. Either the system on the hard drive has been corrupted and it can t boot from it or the hard drive itself is damaged.
Resolve boot issues showing prohibitory sign.