Discussions

Hi,

Hope someone can help with this problem thats driving me mad. I have been keenly following and building UAV's since v1 of the mega.  Heres my current setup.

In January i bought from 3drobotics:

1 x APM 2.5+ Assembled (side entry) with 433Mhz (europe) telemetry set

1 x 3DR GPS uBlox LEA-6

1 x APM Power Module with deans connectors

Using my original Turnigy Plush 25 SC's

Using my original BL 2217/9 motors

Radio is a JR DSX11 on 2.4Ghz

Receiver is a JR RD921 9 channel rx

Heres the problem.

When i first connected the APM to MP i uploaded the 3.01 firmware.  I connected successfully and performed a magnetometer calibration and accelerometer calibaration.

I moved onto radio calibration but had some problems with binding the rx to tx to i aborted it.

After this i could not connect to MP

If i pick previous firmware in MP on the Install firmware page, and select AR2.42 AP2.74 AC2.91b i can successfully upload and connect to this. But when i go back to 3.01 i cant connect.

Using 3.01 i can go into CLI and enter commands and i have tried issuing a erase command and clear the config, which completed but still cant connect with 3.01.

I have tried 3 different windows laptops - same problem

I have tried with and without radio plugged in, speed controllers plugged in, gps plugged in etc.

Ive google for answers, the forums and watched countless you tube video.  I have successfully had my quad flying on most hardware, the last being APM Mega with OilPan shield but since this upgrade i cant proceed further.

Can any one please help me diagnose this problem and give me some suggestions to try so that i can move on.

Many thanks in advanced,

Tony