Completed this project as well for the BLE/WIFI and Zigbee antenna’s. I had to use a small saw to make an opening above the led ring in the back. It was glued too tight. Once the orb has been opened it is easy.
I opened it above the LED ring. No screw-breaking or other damage was needed.
Nice! And how’s the result?
I am getting better reception for BLE (that was my goal). Otherwise no failures or problems.
BLE for what purpose
Christmas lights of course! And mi flora 
Hello, I ordered 2 antennas, one for zigbee and one for 868 (z-wave), the ones from aliexpress which I found on this thread (thanks to all). I managed to open the Homey with a knife without breaking every thing. I replaced the zigbee antenna. It was the easy part but I must say that for the moment the range enhancement is not what I expected… I will go on with some tests.
As I do not want to take too much risks I wonder if for z-wave it is possible to solder the pigtail on the existing antenna without having to cut it… So that it is easy to revert if the upgrade is not good.
Well I must say that in ant case the homey z-wave range is not sufficient for me. I want to link some “thermostat” and they are not reachable : homey and device not on the same floor. I am pretty disappointed.
Regards.
Adding antennas doesn’t mean you shouldn’t create a good mesh. If you cross multiple floors you should add routers.
I’ve cut the antenna pigtails because I wanted as less hops as possible, but yes when connected correctly it should work.
My biggest gain was for the zwave, didn’t have much problems with zigbee. What’s reallllly important is to connect the right antenna to the right connector, so mark the antennas , I had that wrong and was a bit disappointed with the range… but was my own fault 
Zwave is also easier. Get an Aeotec Zwave Repeater. It is easy to open and the antenna is immediately visible. With a little tinkering, you can get the mod here too. Please be careful, you are working on a component with 240 volts!
If the power is still not enough, you can switch on a booster in between. But pay attention to the legal regulations in your country.
It is also important to consider the transmitting power of the antenna. The more dbi, the flatter the radio cone becomes.
Just de-solder the default antenna, don’t cut it. Then you can use the same hole to connect the cut pigtail and still revert if you want to.
WAUW!!!
Are you Homey "addicted’ 
(because I see the Homey sticker on your laptop )
Indeed, it is very useful to work with such tracker to get the price and the best time to buy it. That is the reason I am happy to work with it on finding a couple of months ago. And now it is my main app.
Not a lot of response to your post…
This looks pretty neat! Do you have some more pics?
I can make some more but observation is following:
.Right, I saw your post about the C7. You seem to be liking it a lot 
Yes, so far its very positive surprise comparing to Homey, Fibaro or Vera. Definitely value for money. Lets see how it works over the time (mainly stabiity).
Wow, so much bettet than the childish ball-design!
I hope Athom are taking notes 
About childish remarks? Don’t think so…
They can spend that time on a much better purposes.
HI, i also did the antenna mod for Zigbee and Zwave.
It is so succesfull that i want to also replace the 433Mhz antenna (for some old KaKu stuff).
If possible i want the same type of white antenna’s for Zwave and Zigbee i bought at ome Ali’s place.
He also sells the 433 SMA variant, but is there really no seller in europe who sells these kind of antenna’s ?
Peter
