I upgraded a turbo hd 1.0 dvr to a turbo hd 4.0 dvr to try out the new 8mp analog, but the new dvr is blocking my imported chinese cameras which are working on the old dvr, gives error language mismatch (even though the analog camera is set to english language) Seriously annoying. Who'd have thought hikvision would steep so low as to put region restrictions on Analog. Anyone smart here who could find a workaround. I paid for these cameras so should be able to access them, not be given a black screen.