DJI Thor
Administrator
Flight distance : 13602 ft
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Hi Sliderul, firstly, just to verify, you had updated all your firmware including batteries, RC and the drone body, right? Sometimes the firmware version with a +/- mark behind means the upgrading incomplete. You can check the version by this way: power on the drone, RC, app and enter device---upper right icon---general----about. The latest FW of the craft is V 01.00.0400, V 01.00.0100 for RC, please check.
Like Hummingbird.UAV mentioned above, please try to shut down the other app of the device, or switch the phone to the airplane mode, especially, Bluetooth or some other interference may also contribute to the lag of the image transmission.
About the weak image transmission signal, I could also suggest that you can try another place to fly to test if it is the environment should take the responsibility for it.
Besides, the connection between the Spark RC and the mobile device via OTG cable has not been fully tested, so I would suggest that you use it with caution.
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