ODIN crashed. My tab 2 10.1 had firmware issues and I cannot access Downl. or Recov.

Hi everybody.
I was upgrading my Tab 2 10.1 firmware using Odin but the software crashed. Now I can only see a screen where my tab says "Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again".
I tried to access to Download or Recovery mode using keys combination: the tab reboots but I can't access to download or recovery mode, I just see the same screen.
I tried to connect the tab to my PC and use ODIN or Kies, but it connects and disconnect all the time.
Any help?