I'm looking at buying some Hikvision cameras and am seeing that the Chinese cameras that have multilanguage firmware put on them can't be updated, which is fine (I guess), but I'm also seeing some statements on some that if they are reset then they will go back to Chinese settings - I'm assuming that means resetting to factory defaults or something? Is this actually an issue or am I able to reset to factory defaults if I happen to make a mess of the settings? Is it worth it to just try and get English ones? Also, any help to decide between turret and bullet would be appreciated. I'm expecting it to be up high to view front door and driveway. I may get the NVR or whatever it is called later, but will probably use it stand alone for now. Thanks in advance. I have some cheap trendnet IP cameras that I use with tablets to monitor my young children, but they aren't the complexity level that this will be.