VTech RM5754HD Smart Video Baby Monitor Faulty for spares Camera no power

This monitor has been sold as faulty because camera dont seem to be turning on(i had few of these models from joblot and comparing to other working cameras this one dont even shows led indicator when is turned on)

Parent unit seems to work fine as i managed to connect working camera to it(but no guarantees as didnt test it for long time and dont know battery life as well)

I get these units in joblot so i dont really have information about them and i personally dont work with baby monitors but they was just part of joblot

Cosmetically great condition

No chargers included only camera and parent unit

Any questions please feel free to ask and i will try to help 

Thanks