HDMI cable isn't working on my MacBook Pro

I bought a HDMI cable with a thunderbolt end for my MacBook Pro and it stopped working. When I connect it, the screen turns blue for some seconds but won't make 'connection' and wont show on my TV (SAMSUNG). It was working fine till last month.
Today, I brought it to work to try it out and connected the cable on another MacBook and it worked fine (So the cable works), and connected a thunderbolt adapter with a HDMI cable to my laptop and it worked (my thunderbolt port works fine, too). It's just my cable not working with my laptop...
I'm going to update my MacBook, maybe that is the problem...? But why did the other cable work and not mine?
Thank you!

Try this.
Sound
1. Remove the headphone.
    If you see red light in the headphone port, plug the headphone
    in and out of the port 5 or 6 times to flip the microswitch inside.
    Sound output may be stuck in the digital mode.
2. Reset PRAM. http://support.apple.com/kb/PH4405
3. Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the method for:
    "Resetting SMC on portables with a battery you should not remove on your own".
Flash Player
1. System Preferences > Other/ Flash Player > Advanced > Delete All
     Press the "Delete All" button
2. Install Adobe Flash Player.
    http://get.adobe.com/flashplayer/
    Quit Safari.
    Restart computer. Relaunch Safari.
Best.

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