MacBook Air error code VDH002

Hello everyone.

About 2 months ago I had a problem with my 2013 13” Macbook Air. It froze for a while so I forced turned it off and on again. When I power the mac up it just shown a folder with a interrogation mark so I went to the recovery mode but the SSD didn't show in the disk utility, I turn it off and on again and did the diagnostic and it showed the VDH002 error.

After I searched online and in particular on this website and did a bunch of suggestions I concluded that the problem was that the SSD was damaged so I order a new one:

MacBook Air 13インチ Mid 2013 SSDの交換

After installing it, and I did everything carefully making sure that the new SSD was correctly connected, I power the mac up but the same happened, same error, no SSD detected...

So I just went to the closest iStore to do the check up, the mac still there, but they sent me an email saying that the problem was with the SSD and they needed to install a new one... but I just installed a new one... my first though is that they did a lazy check up and didn't went deep to understand what happened. Must people don’t understand that much about computers so they can just say whatever, if you want your mac back you will probably pay for the repair.

Did someone have the same issue that the SSD replacement didn't fix? Have someone had problems with iStore's diagnostics? Can the SSD that I order on ifixit be damaged?

UPDATE: the iStore guy just emailed me saying that they tried my SSD in other mac and it didn’t work and they tried a new SSD in my mac and it did. I guess the SSD that I bought on iFixit is not working!

UPDATE 2: I sorted! Here is the solution for everyone facing the same problem: I always keep my Mac’s OS up-to-date, before this problem the Mac was running macOS Catalina so I took the warning on the SSD box of installing macOS 10.13 or later before installing the SSD as a given BUT apparently updating the OS does not mean that the firmware is updated as well. So the solution was after installing the SSD press and hold cmd + option + r after powering up the mac to sure that the mac firmware is updated, then on the “new” recovery mode the SSD will show up on the disk utility.