Chosen Solution

My SSD is not detected. It is an onboard 256GB SSD. I need to get stuff off of it but since it is onboard I can’t put it in an external enclosure and boot from it. Does anyone know how to fix the issue, or is there something that can be done to boot from the drive by either removing it from the logic board, or something? I know it is a long shot, but I really would like to know. Thanks

Your SSD is probably dead. As an emergency solution you can try installing MacOS on an USB drive as a boot disk. Its slow but kinda functional