Hi

I have 2 C310 and 1 C320 that are playing up. Reseting them didnt work so i deleted them and now am trying to reinstall them but the red light is constant, when i reset it flashes then goes constant.

I am at a loss as what to do now. 

Any ideas how i can fix this please.

I have spent the last month trying everything i can think of but nothing is working.