2011 Macbook Pro wont recognize new SSD, or even the old HDD now! Folder/question mark flashing.

Hello everyone,

Found myself in a bit of a pickle. I have a late 2011 13" macbook pro, and I decided to speed it up by installing a crucial mx100 SSD I just bought.

However, now my mac starts up with a flashing folder and question mark. These are the steps I have done before/after

1. Swapped drives

2. Booted from USB that has Yosemite

3. Opened disk utility, erased the crucial SSD and reformatted to Mac os extended journaled.....

4. Used the time machine option to install everything like it was before

5. Everything worked! All my old files were there, i was browsing the internet and looking at photos. The ssd was working fast and great

6. Few hours later, screen froze.

7. Rebooted the macbook, was faced with a flashing folder/question mark.

8. Reset the Pram, nothing happened.

9. Opened disk utility, the SSD is not showing up

10. Swapped out the SSD for the old HDD that came with the mac.

11. Still shows flashing folder and question mark.

12. Opened disk utility again, and the old HDD is not showing up!

13. Tried to boot into apple diagnostics by holding D, doesnt work and continues to folder/ question mark.

14. Please dont tell me my hardware failed!!!

Any ideas what the issue could be? My applecare ran out in November.

Thanks!