TBH I just googled PS3 error codes and opened first result:
https://ccm.net/gaming/playstation/1775-playstation-3-error-codes/
8001000B Wi-Fi key error
Now I see that there are couple of interpretation of that error code, depending what site I open. On some web sites there is interpretation that is internal memory problem...
Im not sure who added that description of the error in wiki, but assuming is right... is telling there is a timeout (the firmware is trying to do something but whatever is at the other side of the line is not replying), and you are having that error while the PS3 is trying to read the eMMC
Also, keep in mind you are having the error too while doing the option 3 from recovery menu to "restore filesystem", thats pretty much like a scandisk and a defragmentation together... the firmware needs to read the entire filesystem to locate the files, then perform a sanity check in them, reorganize them, etc...
We dont know well how it works, but your PS3 cant complete that process (and there is no other device in this world that could do it, other than your unique PS3) so the filesystem is unrecoverable
The filesystem is software, in theory it can be regenerated but i never heard this problem in a PS3 with a eMMC chip, i dont know how is supposed to work that process in a superslim with eMMC
What we dont know is if the filesystem was damaged as a consequence of a physical damage (in other words... bad blocks inside the eMMC chip or whatever). Im just mentioning this because in a standard mechanical HDD uses to happen that we are 100% sure the filesystem is damaged but we dont really know if the HDD have some phisical damage (until we do some tests, as a surface scan to see if it have scratches, dead sectors, etc...)
I was just creating standard partion table and leaving unlocated space. I have not created and file system. I think that that is a state when u buy new, unused hdd. That was my logic... to bring hdd in a "new" state and that PS3 handle it in that way.
What should I do in your opinion?
The main goal when we format the HDD in PC is to be 100% sure that we are removing any kind of data compatible with the PS3 (data that could be problematic from a previous test in the PS3) and this can be achieved by many ways, creating a partition table works because you are overwriting the first sector, as well as creating any partition with any filesystem (because this involves writing in the first sector too), and something even faster is to open the device with a hexeditor and fill the first sector with zeroes
All that methods cleans the HDD completly (the PS3 is not able to recognize any old data from it)
I just mentioned it because in the order you are doing i dont see how it could help, you are connecting it at the end expecting the PS3 to use it directly... but inmediatly after connecting it for first time the PS3 cant use it (it needs to format it). Im not sure how works in superslims with eMMC but you should have some kind of warning telling "A new HDD has been detected, do you want to format it ?"
This step where the PS3 formats it should work fine, actually as far i remember you mentioned you already tryed with other HDDs... so the HDD is fine
I guess if you continue trying that "migration" of data and results in more errors it could be a good idea to continue formatting it in PC (to clean all posible garbage from the failed previous attempt), but format the HDD first (before any other step of the migration procedure you explained)