I mentioned the SIM holder too because the SIM card could just work very well in another phone, but be badly inserted in the Proš (if the holder is twisted or something). However, if the SIM immediately shows up every time you flash, then I don't know. I have no second SIM at the moment in my Proš because I use a SD, but I disabled SIM2 in the settings and rebooted, and no issue so far. My main "isolated" issue is the video thing posted above. :<