HELP : no operating system on my htc one s

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http://forum.xda-developers.com – hello guys , last night i tried rooting my phone and then installing a custom rom. i unlocked the bootloader , flashed custom recovery , and then Perm-rooted it. everything went well. then i tried to install custom rom and the dialog windows on my computer said ``its finished , enjoy trickdroid.`` so i rebooted the device and after that problems started. i couldnt get past htc welcome screen , the one with the normal eroor message with red letters (this system is for development purposes only..). i tried a few times again , but still nothing. so i went on internet to see how to recover from t (HowTos)