"I solve the problem

Paul i did download the 3dr config tool and i made a local firmware update but that dident help
At the past i have change the value  TELEMETRY_DEALY from 0 tgat was in stock to 10 and everything worked very good
For no reason…"

"Thank you paul"

"I check them with mission planner and both radios has the same values

About the 3dr radio app what should i check for?l

Should i reupload the firmware?"

"The antenna and the tellemetry ar away from esc or other rf noise.
It worked ok before but suddenly it couldnt update home location amd cant saw the tellemetry rssi

I believe its more a software problem than a hardware problem

I have format sd but…"

"I wiil format the sd card and if this dosent solve the problem i m going to reload the firmware

Thank you very much Paul"

"If you have any suggest please tell me

I want to thank you for your time"

"Yes with usb it connects perfect , 

But if i arm the copter when usb is connected it still have the

Home location could not update

I have to tell you the gps has 15 sats wuth hdop 0.6"

"Yes i have sellect the correct com port and baud rate

As i write if i press the cancel button some tellemetry values work ,like the tellemetry range ,the volt power 


When i arm it writes 

Hone location could not update


Before it worked as it…"

"I m having a problem with tellemetry and pixhawk

The green light is steady at both devices ground and air
There is another light that blinking and it shows that data tansefer between the two tellemetrys

The problem is the when i connect too…"

"How do you power tbe pixhaek?
Only with power module or you power with back up  from the rails??

I have a friend that his power module failed and the copter drop from the sky...."

"Thank you very much Andre

I hope in the future i will not be in the same situation again and not need to use the things i learn here.

HAPPY AND SAFE FLIGHTS TO EVERYBODY"

"Andre K thank you for analyse my logs

About the modes you mention i dont know what happend . i have 2 switches for change the flight modes
1 switch 3 pos is  1 stabilize 2alt hold 3pos hold  and when i make the 2nd switch down, the 1st 3pos switch…"

"I upload them here2016-04-05 18-27-28.rlog2016-04-05 18-27-28.tlog"

"I dont know what i have done but there is no ome log at my pixhawk ,,,i upload 2 files from my telemetry logs if they can help
You can download it from here…"

"I will , when i get back at home at night"