здравствуйте, я насчет проблем When I use control-U, right at the beginning it stops the bootloader but then the commands don't work anymore: I have no more answer. The dvr (DS-7216HUHI-K2) was wrongly updated from 3.5.35 version to 3.5.50 version.
вы посоветовали но я не понял, можете обяснить ?