Your device is in openmode after that, no problems there. However this does not get rid of the "ugly-triangle-and-warning" screen in the startup. The problem is that to remove the openmode-warning with disclaimer-cal you need to do that before booting into openmode, because it is stored in a memory location hat is no longer accessible in openmode So, the correct procedure is;1. Flash the device clean in closed mode 2. remove the ugly warning 3. Flash the device back-to-back to openmode