Needs to come with installation and troubleshooting instructions
595646
This was hugely frustrating to install. There are no instructions other than a tiny line drawing on the box. I couldn't tell if the gold dots needed to be covered up, aligned in a special way, etc. Placement DOES matter, as I learned the hard way. I was impressed that I could get my case back on my phone after installation, but then it wouldn't work at first. Eventually, it worked, but is temperamental at times in terms of charging. Tech support doesn't answer. I didn't get help until the next day via email, and it was written in broken English, so I was confused . Meanwhile, my battery was almost gone and I got the charging system because my  charging port stopped working, so I was stuck. Luckily, everything works fine now and it's quite handy.

I knew that I needed a phone-specific receiver to attach to my phone's battery in order to charge it with a separately sold charging pad, but they should do a better job of explaining that you need to purchase 2 separate items. One is general (the Qi pad), one is specific (the receiver for my exact phone). I didn't realize that different receivers charge at different speeds (like everything else with computers, there's a number that indicates speed). I also didn't know I could mix and match brands between receivers and chargers. They definitely need to spell out exactly how to place the receiver on your phone battery and offer some troubleshooting info.
1273099
Needed upgrades download before it works properly
1803470
setup process needs improvement.  Needed support assistance and had to connect direct to computer.
4743680
terrible installation instructions. not easy to switch modes.
1635822
I haven't even taken this out for a spin yet, but I will say the installation instructions are awful!  I highly recommend spending 90 seconds with this video before starting the installation, it will save you much more than 90 seconds of aggravation on the other end!  https://www.youtube.com/watch?v=WB9c8yQKX58
3798433
Works well.  You will need to find a youtube video for instructions.
3028543
Looks great once you figure out the instructions.
2534440
Tried to hook it up.  But need the code to be able to do that.  Will have to ADT out to hook it up.
1759474
Very complicated!  I have still not gotten it to work and since 30 days have transpired, I cannot return it to Amazon.  I would advise to install it as soon as you get it, so that it can be returned in time.  There is no one to call on the manual, and the "web support" says the same thing as the instructions.  Even a Youtube was not helpfull.
1109623
Just make sure to update Windows 10 first.  I had to plug it in then do a Windows update manually before it was recognized.
1143258
unable to use due to no installation instructions and no indicators on parts.  some searching around on competitors products yielded the attached image.  Given the fact that this is a common refrain among the reviews and that the seller hasn't addressed it yet, doesn't lead me to expect great things post install..  but we will see.  attaching  doc I found in order to help other newbies understand the set up.
2270906
no instructions included, but I was able to get it installed and it's working great!
4116995
Would have been 5 stars if an instruction booklet had been included.
4642100
There are instructions in the package on how to do this. You must get the instructions just right else it won't work.
3300817
Wish I knew how to get it working, or some instructions in English!
1151785
there is no instruction manual to set up. you have to figure out what to do and if you need additional equipment
4952762
The instructions are subpar. I don't know how to hook it up to my system at all and there is no FAQ or help site referenced