Device got bricked while installing JELLYBEAN
with fastboot tools you should still be able to access your device via usb. get the android-sdk-tools from google, and give it a try

http://wiki.cyanogenmod.org/w/Doc:_fastboot_intro

http ://wiki.cyanogenmod.org/w/Doc:_adb_intro

in this wikis you will also find plenty ways to unbrick your device:

unbrick android xda - Google-Suche
https ://www.google.de/search?q=unbrick+android+xda

Unbrick Any Android Phone
http ://www.beingtricky.com/unbrick-any-android-phone/

These 6 methods will help you unbrick any Android Device - Droidiser
http ://www.droidiser.com/2013/07/how-to-unbrick-any-android-phone.html

FASTBOOT-UNBRICK YOUR DEVICE WITH 'NO DISPLAY' - My Community
http ://forums.droidbeans.com//tutorials/fastboot-to-unbrick-your-device/

xda-developers - Threads Tagged with unbrick
http ://forum.xda-developers.com/tags.php?tag=unbrick

[RELEASE] One-Click UnBrick updated 10july11 - xda-developers
http ://forum.xda-developers.com/showthread.php?t=1153310

hope this will help