Erased main HDD off device and now no hard drive can be found.
I was clearing my early 2015 MacBook Pro 13" Retina, planning to sell it afterwards. In disk utility I erased two drives. One was titled Macintosh HD and the other was Macintosh HD - DATA. I erased BOTH of these drives.
Upon restarting my computer, an image with a folder and a question-mark appeared. I then restarted in recovery mode and was prompted with the option to open disc utility or download a version of Mac OS Maverick via the internet. When I attempted to download Maverick, there was no hard drive/disk available to install the OS on. I went back into disk utility to find no available hard drive ( other than the Mac OS base system drive).
I then went to my other Mac (2018 4 thunderbolt version) and copied the OS Catalina Installer onto a flash drive hoping that I would be prompted to install OS Catalina in the broken MacBook. However, the flash drive could not be read.
I then erased the data on the flash drive and configured it to APFS so that it could be read by my Mac and I was able to install OS Maverick via the internet to that drive.
Now the problem remains. I want to recover access to the integrated 256gb SSD and boot my computer normally through the SSD and not the flash drive.
Currently, the Mac is running OS Maverick of a 128gb flash drive.
I do not care about data recovery as there was no data to recover to begin with.
I went as far as to unscrew the back-shell and removed the SSD and reinsert it.
Any tips would be appreciated!
Thank you!