Here's how you can solve the errors Error detecting device (lockdown error -5) and Could not connect to lockdown of Absinthe 2.0

   Absinthe 2.0 was officially released yesterday for the owners of iDevices and of course he was not immune to the problems that we encounter with every software of this kind. First these problems appeared, then the error problems appeared Error detecting device (lockdown error -5) si Could not connect to lockdown, and those from the Chronic Dev Team I say that it all comes from their software. It seems that these errors appear due to some timeouts that occur during the jailbreak process, but they can be solved very easily.

  Basically, after you receive this error, you have to go to Settings>General>Reset, to choose the option Reset all Content and Settings(which will delete everything you have in the terminal) and to redo the jailbreak with the latest version of Absinthe. It is advisable to make a backup through iTunes of your iDevice before following the procedure and restore that backup after the jailbreak.