iphone 4 os 7.1.2 baseband 4.12.09 jailbreak fail

nanopaws

i just followed all the steps and it worked until i clicked the cydia icon at which point the screen went blank. It is still recognized when plugged into computer on itunes and dropbox but it will not respond when being woken up by top right button, the on and off, nor by any volume or silent keys (home button broken)...

Victoria00

Have you tried doing the process again?