I ran PhotoRec on the new HD to recover files, but most of the small files (<10 MB) were corrupted, although many big files (>1 Gb) were OK. So now I'm gonna try to fix the MFT using testdisk to see if there is a chance to get back all the files and folders, first trying to fix the RAW partitions, then fixing MFT. The 2TB disk now has the 5 old partitions summing to almost 1 Tb (Letter B and old label DDD) and another measuring 1 Tb (Letter H) which I used to recover the files

After running the Quick and Deeper Search on TestDisk 7.2 64Bits on the whole disk, it said it was not able to recover a partition and returned to me a total of 8 partitions, 2 of the are OK, the rest have Bad Structure.


One of them is the 1TB partition H, which is the only one I can access using p key, the other other give me the error "Can't open filesystem. filesystem seems damaged", so that I have absolutely no idea of how to choose the partitions which I need, or if I need to skip this and go directly to repairing MFT. Here is the log file from TestDisk https://pastebin.com/YLYEBySA .
Someone please know how to proceed?