asus ux31a freezing when shaking or moved

Hello,

I have Asus UX31A. it has been a while since it has been freezing if gets shaked or moved. I’ve tried all software troubleshooting methods (memory test, HDD test, reinstall windows, update bios, etc) and couldn’t solve the problem. when the device is shaked while in windows. it start freezing (mouse keep moving for a while) but everything freezes (no BSOD) . if i keep it still and it doesn’t happen for many hours. so i am pretty sure it is because of hardware. I tried to add new CPU paste, tried to tighten the ssd drive. still having the problem. I even tried to open BIOS and shake the device and it doesn’t freeze. I also found that sometimes it goes into bios and doesn’t recognize the hard drive. after few restarts it recognize it then freezes in windows if shaked. I am a bit confused. cause what I think it is SSD problem. but it is well tighten into its slot. and it is SSD not HDD so it shouldn’t be affected with movement!.

are there any suggestions ? I am so tired of this problem.