Resolved cant start the mac, get black screen with a logo on it (with pictures)

[C_Skovdam]

when i start the mac i get a startup sound and a black screen with an error logo on it (picture 01)

after that i hold down the cmd + r keys down and get a loading screen (picture 02)

the menu that i get after have the following options, "restore from time machine-safety copy, reinstall macOS, get help online and Drive tool" (picture 03)

if i try the first one "restore from time machine" it just keeps searching for a safety copy but never finds one (picture 04)

If i try "reinstall macOS" and wait for 20-30 mins it gives me the failed message "can't create a pre-boots-unit to APFS installing".

if i try the "desk utility tool", i can delete the part called "Freya" but cant do anything else in there without getting a message saying it didnt succed in the task (picture 05)

extra: some sites said to hold down cmd + option/alt + r.. but that doesnt work.. no matter how long i hold it down

anyone there can help me fixing it???

picture 01 https://ibb.co/endLYK
picture 02 https://ibb.co/iyBw7e
picture 03 https://ibb.co/dJFdLz
picture 04 https://ibb.co/kVeutK
picture 05 https://ibb.co/cKzYne

 

[Audit13]

Boot internet recovery, erase the disk using disk utility, and reinstall.

Make sure you have a backup before erasing the drive.

 

[C_Skovdam]

i cant use the internet recovery.. as i said in the "extra" part... the command cmd + option/alt + r does not work..

and i cant backup anything since the computer doesnt get further than picture one.. i cant get to the desktop or login screen... it gets stuck as the first image shows

 

[Audit13]

Are you pressing CMD+Option+R right after pressing the power button? Is it possible the keyboard is bad?

If you have access to another Mac, you could create a USB installer for MacOS and boot from the USB drive to re-install the OS.

 

[C_Skovdam]

i did not think about the keyboard being bad, so i connected a extern keyboard and it worked... im currently trying to us the internet recovery.. ill return with any result

 

[Audit13]

i did not think about the keyboard being bad, so i connected a extern keyboard and it worked... im currently trying to us the internet recovery.. ill return with any result

Wonderful, you are making progress

 

[C_Skovdam]

it worked
after getting it to run the internet recovery and reinstalled the HD it allowed the mac to install the OS..

Thank you very much for the help have been trying for days to get it to work and it was a stupid key malfunction
-_-

is there a point system on the forum i need to give to the best answer??

 

[Audit13]

it worked
after getting it to run the internet recovery and reinstalled the HD it allowed the mac to install the OS..

Thank you very much for the help have been trying for days to get it to work and it was a stupid key malfunction
-_-

is there a point system on the forum i need to give to the best answer??

No point system from what I have seen.

I'm just happy you got it to work. I've been down the "diagnosis from hell" road too and was dumbstruck when something as simple as using another mouse, keyboard, or trackpad solved the problem.