Weird SSD drive behavior (Macbook Pro 13)

Question

Iron

A year ago, I installed a Samsung SSD (830 series, 256Gb) in a Macbook Pro (13, End 2011, 16Gb RAM).

Yesterday strong brakes began, because of which I rebooted the computer.
There is no way to write files in OSX after reboot (can't create file even with sudo, error 50).
Checks with Disk Utility did not give anything, there is enough disk space.

At the same time, Windows 7 (Bootcamp), located on the same SSD, was able to start and work, periodically freezing for 15-30 seconds.

I pulled out the SSD and connected it via a USB adapter - it all worked.
I return the SSD to the laptop - the problems return.

What could be causing the problem?
While sinning on the cable to the SSD.

Thank you very much for your help!

Answer 1

The problem was in the loop.
Replaced for 22 EUR )

Answer 2

If it works on USB, but does not work on the internal controller, then either the cable or the controller itself.
The loop can be easily changed and eliminate this problem. You can either buy it yourself on eBay, or try to take it to a normal workshop for diagnostics.

Answer 3

To be honest, I read it at first, a shitty job.
Well, you either have problems with the cable, controller, mother, disk. Everything is diagnosed by replacing it with known working components, but the easiest way is to take it to the service.