I have great news
removing the HPA allowed me to unlock the drive successfully! Strange thing it that I had to do it several times with HDAT2 but now it's working! Partition is corrupted, and MFT and backup MFT is also destroyed. However I recovered few files with photorec that confirmed bridge is correctly decrypting.
I reconstructed the partition with test-disk and I'm now rebuilding the file system with DMDE Express. I'm missing root folder files names but sub-folders are ok and file names too. Then I'll be able to recover the content to another drive.
I want to express a huge thank to you all, especially fzabkar and Doomer!