Sadly no, i am using SuperSU, locked bootloader... i have done it few times prior to this, changed the ROM version back to 4.1.2 then back to 4.3 and now it wont go
Try running it again and posting the screenshot, it would help very much. Are your ADB drivers installed? Is the phone locked while the script is running?
Try this fix: http://stackoverflow.com/questions/14993855/android-adb-device-offline-cant-issue-commands
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