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Your DJI camera drone is a very advanced chunk of technology that must also work together with other devices (including phones and tablets) via wireless connections. Unfortunately, perfect (cooperation) is not always guaranteed. However, DJI is by far the most progressive and leading drone manufacturer when it comes to quality and function.
Our experience shows that it is usually not the drone that is the problem, but circumstances, experience / knowledge of the user and / or peripherals, such as phone, apps on those phones and even SD cards! Therefore, it is important that you try to eliminate as many potential sources of interference as possible.
OTG connection via USB: better signal, more range
In case of connection problems, we recommend the use of an OTG controller cable .
To avoid peripheral problems, we recommend the following when troubleshooting your problem in order of priority:
Bluetooth is a strong disturbing factor for Wi-Fi signals. In some cases, the drone does not even want to connect to the app, so the blue "GO FLY" icon never appears. During one of our tests, the bluetooth connection on the phone was turned on and it was also connected to a headset. This turned out to be dramatic for the reception and transmission of the WiFi signal.
Also keep in mind that a host of other things can affect your phone's Wi-Fi, such as apps running in the background. To avoid this, close as many apps as possible on your mobile device before flying.
Sometimes the DJI Spark and the remote control lose their connection. You will then need to re-link the Spark and Remote controller. The video below shows how this should be done.
Sometimes the Mavic Air and the remote control lose their connection. You will then need to re-link the Mavic Air and Remote controller. The video below shows how this should be done.
Unfortunately, the Spark is not equipped with DJI's superior Lightbridge technology, which also contributes significantly to the Spark's lower price and compactness. Please keep in mind that the Spark is not intended for long distances, such as the Phantom 4 and DJI Mavic Pro ( Fly More Combo ).
The Spark can connect via WiFi over 2 bandwidths and various channels.
You can find the WiFi settings in the Go4 app by tapping the 3 dots (…) in the top right of the screen.
Go to the WiFi icon (4th from top). See also the picture below.
In general, we recommend flying on the 5Ghz bandwidth because it is (for the time being) least used (due to interference). However, depending on location, circumstances, phone and even the (active) apps on your phone, a different setting may work better. Unfortunately, this can only be determined by experiment, but the app will help you by showing how strong the reception is on each channel and how stable the signal is.
Although strength contributes to the distance that can be communicated, stability is very important for operation. We recommend always going for a stable (green) connection, of course with the highest RSS value.
In any case, switch bands to see how stable your current channel is because the app only shows reception for the current channel, not stability.