My Samsung 840 SSD became very slow and unresponsible all of a sudden,it doesn't boot and I can't format it or install an OS to it.
So I am booting Ubuntu from an USB stick,and here are some screenshots from the tests I have run with the Ubuntu Disks utility:
It passed all of the tests,including the self-test,but in the Benchmark test it didn't show the writing speed,but only the reading speed.
Please tell me how can I repair this drive.