Quetiano After trial and error, I managed to get the gps to lock on to satellites, you'll have to open the quad, free the gps wires running from the flight controller to the gps which travels under the vtx, then allow the gps wires to run freely to the gps above the vtx, that allowed me to lock onto 8 satellites. Theres something about the carbon frame or vtx that affects the gps through its wires.

Quetiano You can try it by using it on an 8s, but, I suggest to use this motor for slow flight, NOT for high speed, otherwise the motor will probably burn.

Quetiano Firstly, make sure that your soldering iron is heated up...properly...you need at least 350 degrees celcius for thin wires to solder, and make sure the tip is clean, there must be no black coating or residue caused by usage previously. For the solder, use flux which you can purchase separately... apply flux to places that you are going to solder...then solder.

Quetiano No, not that I know off, however, a multi meter can do that instead.

Quetiano Yes, it all depends on the prop direction and motor direction. The motor direction can be changed by swopping two of the three esc wires that is joined to the motor

Quetiano Yes you can, as long as it has a magnetometer for the quad to use.

Quetiano You can purchase one 18650 battery at your local shop or do a google search for the 18650 battery for sale in your country. In the google search results, you'll see which local shops will have stock.

Quetiano It comes with V1 of the Micro TX.

Quetiano It should be able to work if the 5.8 G spectrum is used on the transmitting side, for instant, the camera

Quetiano Whats an air unit ? This is a flight controller aka autopilot only for a quadcopter (drone) or remote control aeroplane or any other remote control flying object thats DIY.