So, I purchased a new SSD and connected the faulty Kingston SSD to a SATA-USB enclosure and then tried to access it in Windows 10. Unfortunately, it does not show up. However, it shows up in Testdisk.
This is how it shows up on Testdisk -
"
TestDisk 7.1, Data Recovery Utility, July 2019 Christophe GRENIER <grenier@cgsecurity.org> https://www.cgsecurity.org Disk /dev/sdb - 480 GB / 447 GiB - CHS 58369 255 63 Current partition structure: Partition Start End Size in sectors Partition sector doesn't have the endmark 0xAA55 *=Primary bootable P=Primary L=Logical E=Extended D=Deleted >[Quick Search]
"
I had just the one partition with Windows 10 installed on this faulty drive and i think it also had a small recovery partition. Unfortunately it cannot detect any now.
I don't know exactly what " Partition sector doesn't have the endmark 0xAA55 " this means.
I have tried the deeper search but that also does not detect any partitions. PhotoRec is also not able to recover any files. There are large files detected in strange unreadable formats.
I have tried other recovery software which just do not detect any files, if they do, most of them are large swf files ? or unreadable files.
Is there anything I can do myself without having to approach profession recovery companies ? I do not want to give the drive to any third party company as it has a lot of personal and important data.
Is there any hope for this drive based on the information described above ?

Regards