That’s a possibility
Yes that’s the RX end what about the flight controller end?
Make sure the wires in the plug line up to the correct pins on the flight controller.
PIN 5 is yellow wire. PIN 3 is the black wire AND PIN 4 is the red wire.
Looks the same to me 
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Mine goes
R2. LED. B7+
T2. BZ. GRN
The yellow wire is the top wire on my diagram but the bottom on yours mate
Sorry I not sure if that help
Oh yeah how odd… both are R2 
Edit: mines the V1.0 lol
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Sorry, I have to go soon. Could we possibly try again tomorrow
That doesn’t sound right at all. You have led pins and buzzer pins. Are you plugged into the correct socket?
Can you take a photo of the board so we can see properly
I can try it just very hard because I can’t get the top plate off at the moment I don’t have a screwdriver bit small enough
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Yeah no problem, we’ll get you in the air. Where abouts are you from? If you’re local we’d be more than happy to hold a meet up and you can come and fly with us and we’ll get you in the air 
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Have you soldered to the pads? Or connected it via a plug?
Ok thank you so much I’ll be on here around 5 tomorrow around 5 but if we can’t get it working then a meet might be useful.
Where abouts are you in the world?
No it’s a plug
Uk Essex
@SirGunner over to you, he’s closer to your neck of the woods 
Lol yeah I’m sure I can sort out a visit if need be 