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A2 New Firmware Update Failure Solve Method
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19409 61 2015-5-11
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DJI-Autumn
First Officer

Hong Kong
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Some customers have reported upgrade problems after A2 new firmware (v2.5) released.

Please follow below instruction to solve these problems.

Step1: Download and install A2 assistant software v1.6. Power on the main controller and connect it to the computer. Open the assistant software, an error warning will pop up.
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Step2:  To aviod the re-setting of parameters after upgrade, please export the configurations from Tools page.

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Step3:  Still worry about the errors? Forget them all. Go to Tools page and click “Upgrade All”, it will automatically download the latest firmware for main controller and IMU. IMU will be updated first and then is main controller.

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During upgrade process, it will firstly upgrade the IMU and then upgrade the main controller.
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After upgrade, please pull out the power cable and USB cable, power on the main controller again, connect it to computer, then open the assistant software. Now, you may encounter 2 different problems (in both problems LED will continuously flash red).   

Issue#1:  The main controller is locked .
To solve this problem, please unlock the main controller by clicking golden lock icon on the top right corner of the assistant software and calibrate the IMU afterwards.
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Then pull out the power cable and USB cable. Power on the main controller again. Connect it to the computer via USB cable. Open the assistant software, the error will disappear.


Issue#2:  Upgrade failure.
To solve this problem, please follow the instruction below:
1.  Short circuit the F1/F2 ports via a 3pin cable (see below picture).
2.  Connect the main controller to the assistant software. Click “upgrade” and it will download the latest firmware automatically. Once downloaded, please pull out the 3pin cable and click “upgrade” again. Otherwise, the upgrade will fail.
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Step4: Upgrade successful. Import the configuration which you have exported before the upgrade (below screenshot).
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2015-5-11
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ggoodlett
First Officer
Flight distance : 26253064 ft
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I did everything you said in the right order and still have all of the errors. My settings will not import. No red LED but four of my eight ESCs are continuously blinking. What a disaster. I don't have any idea what to do.
2015-5-12
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maloneshaun
lvl.4
Flight distance : 319262 ft
United Kingdom
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This does not solve the compass calibration problem!,,,come on dji I have two a2s that I cannot use
2015-5-13
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Emty
lvl.1
Flight distance : 2533 ft
Finland
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Hi guys!

I have three A2 flight controllers and they will no longer work after the update to 2.5!

The red LED blinking continuously, when I plug the battery. For some reason I can not calibrate the compass and sometimes, assistant software gives a warning "abnormal compass data".
I can downgrade MC and IMU firmware easily,  but I can't  downgrade GPS/COMPASS firmware.

It makes me nut because I now have 3 A2:s that I cannot use and I can't find a solution to issue.
2015-5-14
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HMArnold.msn
Second Officer
Flight distance : 24012 ft
United States
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When I got the red blinking LED, I noticed a red lock icon at the top of the screen. When I clicked on it to see if it would tell me the error, it informed me that the MC was "locked" after the firmware upgrade, and gave me a single option...

"Unlock"

After I did that, and restarted the platform, it allowed me to redefine and re-calibrate everything.

You have to use the new version of the A2 assistant, though.
2015-5-14
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maloneshaun
lvl.4
Flight distance : 319262 ft
United Kingdom
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Hi looking at the screenshots on dji autumns tutorial her gps software is showing version 2.6,and mine is showing 2.4, but the assistant software will not allow me to update the gps,come on autumn do you have a solution? Thanks
2015-5-15
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steph
lvl.3
Flight distance : 29587 ft
France
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hello
i try it but no success
how can i use my gps i have a pro and pro plus
The apps don't show the pro plus it is a new never use ...
And with my old one gps pro firmware is curious and warning

Please somebody could help me thanks
2015-5-17
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土鱼
lvl.2

Hong Kong
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steph Posted at 2015-5-17 19:28
hello
i try it but no success
how can i use my gps i have a pro and pro plus

new fireware 2.5 only suoports GPS PRO PLUS
2015-5-18
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土鱼
lvl.2

Hong Kong
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maloneshaun@roc Posted at 2015-5-16 13:48
Hi looking at the screenshots on dji autumns tutorial her gps software is showing version 2.6,and mi ...

GPS PRO PLUS with a loader  version 25.0 and fireware version 2.6. A2 new fireware doesn't support the old version GPS. you can't upgrade your GPS version form 2.4 to 2.6 that means your GPS modul is the old version(GPS PRO)
2015-5-18
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土鱼
lvl.2

Hong Kong
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Emty Posted at 2015-5-14 19:42
Hi guys!

I have three A2 flight controllers and they will no longer work after the update to 2.5!

downgrade  the fireware of A2 back to 2.4, because your GPS modul is the old version which can't support A2 new fireware 2.5.(by the way, you can use the A2 assistant software version 1.4 to downgrade the fireware back to 2.4)
2015-5-18
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土鱼
lvl.2

Hong Kong
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ggoodlett@aol.c Posted at 2015-5-13 11:47
I did everything you said in the right order and still have all of the errors. My settings will not  ...

you need to reset the parameter of the A2, ESCs continuously blinking neans that you choose the wrong Mixer Type,the ESCs got the wrong signals from the MC. (I mean you need to rechoose the Mixer type in "basic->Aircraft")
2015-5-18
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ggoodlett
First Officer
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土鱼 Posted at 2015-5-19 11:45
you need to reset the parameter of the A2, ESCs continuously blinking neans that you choose the wr ...

Thanks 土鱼,

I just needed to reprogram all of my aircraft settings. Don't know why they would not import but it is flying now. In the future I will take screen shots of all of my settings prior to updating the firmware.
2015-5-19
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steph
lvl.3
Flight distance : 29587 ft
France
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土鱼 Posted at 2015-5-19 11:24
new fireware 2.5 only suoports GPS PRO PLUS

hi thanks for help
When i plug my gps pro plus led blinking red and in the software i have a warning calibrate i do it but nothing change red blinking
In the software i have no update and in topological view i see gps but in plain list nothing ...
thanks for help me
2015-5-19
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steph
lvl.3
Flight distance : 29587 ft
France
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hi 土鱼
thanks for help
When i plug my gps pro plus led blinking red and in the software i have a warning calibrate i do it but nothing change red blinking
In the software i have no update and in topological view i see gps but in plain list nothing ...
thanks for help me
2015-5-19
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steph
lvl.3
Flight distance : 29587 ft
France
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could you help me please Red blinking ..
gps prowarning.jpg listgps proplus.jpg gps proplus.jpg

and if i click on the update i have network eror and no update
if i click on upgrade all i have no update ....
I should become crazy ....
2015-5-20
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土鱼
lvl.2

Hong Kong
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steph Posted at 2015-5-20 15:57
hi 土鱼
thanks for help
When i plug my gps pro plus led blinking red and in the software i have a wa ...

hi steph, maybe upgrade fail! do you know how to reupgrade? you can do as follows:

1). short-circuit the F1/F2 ports via a 3-PIN cable (see below picture). 2) Connect to main controller to the assistant software as usual. Click “upgrade” and the system will download new firmware automatically. After the download has been completed, please pull out the 3-PIN cable and then click “upgrade” again.
2015-5-20
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steph
lvl.3
Flight distance : 29587 ft
France
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hello
thx i do it for f1 and F2 i can do upgrade that is good and when i restart it don t want do a new upgrade
2015-5-20
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土鱼
lvl.2

Hong Kong
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steph Posted at 2015-5-20 16:06
could you help me please Red blinking ..

I suggest you try that angin on another Computer
2015-5-20
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土鱼
lvl.2

Hong Kong
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ggoodlett@aol.c Posted at 2015-5-19 23:13
Thanks 土鱼,

I just needed to reprogram all of my aircraft settings. Don't know why they would no ...

does that work my friend? got any other questions?
2015-5-20
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steph
lvl.3
Flight distance : 29587 ft
France
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土鱼 Posted at 2015-5-20 16:20
I suggest you try that angin on another Computer

i just do it exactly the same ...
2015-5-20
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土鱼
lvl.2

Hong Kong
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steph Posted at 2015-5-20 16:06
could you help me please Red blinking ..

hi my friend. could you pls tell me what't version of the LED? it's 2.1?
2015-5-20
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土鱼
lvl.2

Hong Kong
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steph Posted at 2015-5-20 16:06
could you help me please Red blinking ..

you must make sure the LED fireware version is 2.1
2015-5-20
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土鱼
lvl.2

Hong Kong
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steph Posted at 2015-5-20 16:32
i just do it exactly the same ...

please let me know if you solved the problem
2015-5-20
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DJI-Autumn
First Officer

Hong Kong
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Emty Posted at 2015-5-14 19:42
Hi guys!

I have three A2 flight controllers and they will no longer work after the update to 2.5!

A2 v2.5 firmware does support the GPS PRO.
But you need to make sure the LED firmware version is 2.1, if not, the A2 assistant couldn't read your GPS info, you need to use v1.4 assistant to upgrade the LED to v2.1 at first.
2015-5-20
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DJI-Autumn
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maloneshaun@roc Posted at 2015-5-16 13:48
Hi looking at the screenshots on dji autumns tutorial her gps software is showing version 2.6,and mi ...

You need to make sure the LED firmware version is 2.1, if not, the A2 assistant couldn't read your GPS info, you need to use v1.4 assistant to upgrade the LED to v2.1 first.
2015-5-20
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土鱼
lvl.2

Hong Kong
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A2 fireware 2.5 does support the GPS PRO(I made a mistake yestaday, actually 2.5 fireware is compliance with the GPS PRO). before you upgrade the fireware of the MC, makesure the LED's version is 2.1, if not,the A2 assistant couldn't read the information of your GPS, or may case problems you guys have met.

hello steph,have you saw that your Led version is 2.0?haha
2015-5-20
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土鱼
lvl.2

Hong Kong
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steph Posted at 2015-5-20 16:06
could you help me please Red blinking ..

first use A2 assistant v1.4  to upgrade your led to 2.1.
second, use A2 assistant V1.6 to upgrade your MC,IMU
third,problem solved!
2015-5-20
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steph
lvl.3
Flight distance : 29587 ft
France
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Hi thanks for answer
Yes my led firmware is not 2.1 but when i download the new app 1.6 i replace the old one
There is some body who can send it to me the 1.4 version ...
Thanks
2015-5-20
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steph
lvl.3
Flight distance : 29587 ft
France
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YES thanks a lot
It Is good ... for the application 1.4
this is the link
http://download.dji-innovations. ... _Installer_v1.4.dmg
Thanks a lot  to 土鱼 and DJI-Autumn
I have a last question i have a gps pro how can i update to a pro plus ? because the actual gps was a spare for me and i bought it full price  ...
And know i have a pro plus and a pro  i would like to upgrade pro to pro plus ...
Thanks
2015-5-20
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DJI-Autumn
First Officer

Hong Kong
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steph Posted at 2015-5-21 04:25
YES thanks a lot
It Is good ... for the application 1.4
this is the link

Please contact the local dealer for more information about  the trade-in program!
2015-5-21
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knarfboy
First Officer
Flight distance : 494508 ft
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Germany
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Question, does the GPS Pro Plus support Glonass like Phantom 3 / Inspire 1?
2015-5-22
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amorrison
lvl.4
Flight distance : 325230 ft
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United States
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When I do the user login via the assistant 1.6, it will not accept my user acct password, I assume its my DJI account that I login with. If I click "forgot" it takes me to a "page not found" on the DJI site. I can login fine here with the same password. I know I'm missing something but have no idea what.... Any suggestions?
2015-5-23
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steph
lvl.3
Flight distance : 29587 ft
France
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This .?

http://login.dji-innovations.com/member/forget/
2015-5-23
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steph
lvl.3
Flight distance : 29587 ft
France
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amorrison Posted at 2015-5-23 23:34
When I do the user login via the assistant 1.6, it will not accept my user acct password, I assume i ...

http://login.dji-innovations.com/member/forget/
2015-5-23
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amorrison
lvl.4
Flight distance : 325230 ft
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United States
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Thanks for posting the link. Oddly for me (Atlanta, GA) I get 404 errors when I click on it. I think its a local server issue. I was able to create a new identity with another email address and login with the new A2 assistant. I downloaded the firmware and installed it, then worked through the various recalibrations and I think I am good. Will do test flight in a little while. Note that if you are not logged into the A2 assistant with an account, it will still let you create an export file but the file will not have correct data. (Yes, from personal experience.) I had to add back all my settings manually. A good export file reads about 2k in windows 7. The one I created without being logged in was only 1K and freaked out the controller when I imported it. I am looking forward to the new controls on the zenmuse gimbals... Oh, and my GPS is the pro plus version.
2015-5-23
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gmarc007
lvl.2

United States
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Assistant software 1.4 is not recognizing  any upgrades??  what am i missing?  Can't find the upgrade download either.
2015-5-28
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asif_bhimji
lvl.2
Flight distance : 323540 ft
United Kingdom
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Where is Assistant Software v1.6 ???
2015-5-28
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mrwolf
lvl.2
Flight distance : 65404 ft
Australia
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asif_bhimji@yah Posted at 2015-5-29 15:57
Where is Assistant Software v1.6 ???

Assistant Software v1.8 will be released soon guys.
Please be patient.
296760_2169955044021_1958807125_n.jpg

2015-5-29
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mrwolf
lvl.2
Flight distance : 65404 ft
Australia
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A2 Assistant Software v1.8 is now available.
Thank you for being a good patient.
2015-5-29
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asif_bhimji
lvl.2
Flight distance : 323540 ft
United Kingdom
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Assistant v1.8 is there but I don't see any pretty nurse yet...
2015-5-29
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