I need unbrick my samsung galaxy tab 10.1

I tied to root my samsung galaxy tab 10.1 wifi + IR PT-5133 I used this method https://www.youtube.com/watch?v=8-gOZh7OxWM After I completed the root prosses, my device was in a boot loop! I tried rooting one more time, but the tablet continued in a boot loop but now IS IMPOSSIBLE start in a DOWNLOAD MODE any suggestions