For anyone else who runs across the "fast flashing green" problem, this was posted a while back by one of the DJI techs:

Fast flashing green: you need connect to the assistant and see page "tools".
Put the Phantom level and stable. Check the value of gyroscope and acceleration:
Gyroscope should be near 0,0,0 and acceleration should be near 0,0,-1.
Do basic calibration following the instructions of the assistant. After that the fast
flashing green will disappear. (If you move the Phantom before take off, you will
get fast flashing green. It is OK.)

Phantom with Graupner e-props 8x5 and video downlink.

Fritz

Originally Posted by Teezer

For anyone else who runs across the "fast flashing green" problem, this was posted a while back by one of the DJI techs:

Interesting.

Sees to keep coming back on my unit. I've re calibrated half a dozen times so far.

I'm not 100% sure but it may be related to the battery as I think it only happens with the standard battery and not with the Zippy spare battery I got.

It is very cold today, but no colder than some places I've seen the Phantom flying... it's about 4 degrees C outside today.

I will keep playing and see if I can find any reason for it having problems with the IMU calibration.

Originally Posted by fritz99

Phantom with Graupner e-props 8x5 and video downlink.

Fritz

Whats is the lift and stability compared to stock props? Do you think it could handle graupner 9x5
Im in the market for graupner to replace stock props but would like youre appinion

Originally Posted by vartaz

Whats is the lift and stability compared to stock props? Do you think it could handle graupner 9x5
Im in the market for graupner to replace stock props but would like youre appinion

Lift is the same.
Stability is much better, but you have to balance them.
Wobbling in the video has gone.
I do not know if 9x5 are too long.

Fritz

Originally Posted by fritz99

Lift is the same.
Stability is much better, but you have to balance them.

Fritz

Do you mind me asking, how do you go about balancing them? Im totaly new to this.

Originally Posted by SimonJohnson

Do you mind me asking, how do you go about balancing them? Im totaly new to this.

HorizonHobby.com How To - Prop Balancing (13 min 41 sec)

Flite Test - Ways To Balance Your Props - FAST TIP (1 min 37 sec)

For 3 bladed props the process can be a bit more involved. This PDF explains the procedure well:
http://www.phprc.net/images/RC_Aero_..._Technique.pdf

Originally Posted by SimonJohnson

Do you mind me asking, how do you go about balancing them? Im totaly new to this.

Here's a start:

http://hobby.dubro.com/videos/tech-t...-balancer-1_17

Originally Posted by daskim

Here's a start:

http://hobby.dubro.com/videos/tech-t...-balancer-1_17

Another great link and a good balancer, I use the DU_BRO one as well.

Did google close down? People keep asking questions over and over that if plugged into google gives them 1.6 million results with the first 100 all being sufficient.

Originally Posted by flitelab

Another great link and a good balancer, I use the DU_BRO one as well.

I bought this one as well, but just a quick note. The stock DJI props have the notch built to keep them from rotating on the motor shaft, and the pointed cones on the balancer hit the notches before bedding completely on the outer diameter of the hole. It just means they may not perfectly center the props on the balancing shaft (if that makes sense). It will hold it for sure, but it could be easy to misalign and decenter the prop - just takes some notice when you are doing it. I was going to ream out my stock props before balancing so that the cones are bedded perfectly. On a side note...hand reaming the Graupners takes longer than you think! lol

We dont have google in sweden

Very interesting, thanks chaps, i have a chunk missing from one of my rotors which is probably responsible for some judder im getting.

I use Dubro also and we sell them-> http://rc-drones.com/dub-balancer.php

Originally Posted by MCrites

Did google close down? People keep asking questions over and over that if plugged into google gives them 1.6 million results with the first 100 all being sufficient.

TBH I Googled "DJI Phantom Balance Props" but although people were talking about doing it there were no explanations on how to do it, i thought it was a software thing so was expecting it to be in the DJI Assistant somewhere and specific to each flight controller.

Obv no seeing the above videos i completley understand now that balancing props is a generic process across the board. Learn sumit new every day!