Doesn't return to docking station

It worked very well for the first month or so, then it started getting "lost" and not being able to find the docking station when battery gets low. Sometimes I have to search the house to find it dead somewhere. Also, when it sits on the docking station it doesn't always sit square so it doesn't charge. I have to put a small weight on it so the contacts touch to charge. A lot of trouble with the remote, it's supposed to operate from the phone but I kept having to reinstall the software to make it work. I gave up and just operate it manually.

###

