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Old Oct 19, 2012, 08:47 AM
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Looking at the positive side. At least now we know that they arae looking into the issue and willing to acked recall.

Now on the photo I would agree that photo is required. My Old GPS/Compass (V1) Oct 2011 looks exactly the same as the one I got Sept 2012 (hopefully V2)..both with black on the side
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Old Oct 19, 2012, 08:51 AM
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Quote:
Originally Posted by flyingbiscuit1 View Post
OK can we get a photo of the gps that is okay and the one that isn't
Thanks
Sounds positive, but I am cautious we have been down this road before.
Fingers crossed that they got it right this time
+1 we need a picture
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Old Oct 19, 2012, 09:01 AM
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Good GPS "Old GPS Module (OKAY TO FLY): has 2 black side pads when looking from above"
Name: Good GPS.jpg
Views: 88
Size: 131.0 KB
Description: GPS which is good :)

Bad GPS "New GPS Module (NEEDS NEW FACTORY FIRMWARE): all white from above no special pads"
Name: Bad GPS.jpg
Views: 75
Size: 166.6 KB
Description: GPS Requiring factory firmware

I think this is correct (please let me know if im wrong)

Just took the pics now
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Old Oct 19, 2012, 09:01 AM
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Quote:
Originally Posted by rruiz View Post
+1 we need a picture
Here is a picture...
from Mikrokopter Sweden

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Old Oct 19, 2012, 09:01 AM
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Heres the results of 14x4.7 APC

Shark rehearsals (8 min 45 sec)


Yes I do trust my S800

As luck would have it I also have the old (Good) GPS with the black side stripes
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Old Oct 19, 2012, 09:03 AM
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Now we know this... anyone who has had a flip... does your GPS had the black side pads?
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Old Oct 19, 2012, 09:10 AM
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Wonder if this also explains some of the NAZA flips? I have a F450 here that was flipping under extra load, with no load it was fine. It had the GPS addon as well. Perhaps I'll try and retest now with no GPS...
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Old Oct 19, 2012, 09:17 AM
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Quote:
Originally Posted by andwin View Post
Here is a picture...
from Mikrokopter Sweden

Jeff / ALL:

Let add this to the spreadsheet to review if people with FOD has the old GPS...

Regards

Roberto
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Old Oct 19, 2012, 09:20 AM
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¿ is there any performance difference between old and new compass-gps? , better satellite acquire ? more sensitive compass? quick gps ? N-S hemisphere difference ?
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Old Oct 19, 2012, 09:23 AM
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Originally Posted by toberal View Post
¿ is there any performance difference between old and new compass-gps? , better satellite acquire ? more sensitive compass? quick gps ?
You know what... this is something I have noticed but only really thought about it now.

The 'old' one acquires satellites quicker for me... and even from inside my house which the 'new' one takes a little longer, and does not get a good lock from inside my house.
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Old Oct 19, 2012, 09:23 AM
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Spyde did flip he's on the old one....

But at that time they were working on the ESC problem...
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Old Oct 19, 2012, 09:28 AM
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Quote:
Originally Posted by rruiz View Post
Jeff / ALL:

Let add this to the spreadsheet to review if people with FOD has the old GPS...

Regards

Roberto
Added, I have overwritten your changes...

Interesting enough both my GPS old and new got black on the side
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Old Oct 19, 2012, 09:28 AM
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Quote:
Originally Posted by jukusa View Post
i have just received a mail from digitech nl :

Research and testing confirms zero faults with S800 air frame – error found in compass firmware



DJI, one of the world’s leading developers and manufacturers in UAV systems, today announced a voluntary recall of all WooKong-M GPS compasses purchased after June 15th, 2012. The new compasses’ firmware contained a bug that, under very specific conditions, could send an erratic signal causing a spike in power and overall system failure. DJI confirmed both the fault and the bug fix by flying four S800s under heavy burden on electric tether for more than 72 hours without failure. Since learning of the system failures during several S800 flights, DJI spent more than 1600 man hours in research and testing to determine the fault and develop a solution for customers. Through the vigorous research process, DJI engineers not only fixed the bug in the firmware, but also developed multiple new innovations for the WooKong-M GPS compass. At this point in time DJI would advise that users of large multi-rotors (S800 size and larger) fitted with post-June 15

th
compasses should not fly their multi rotors until their GPS/Compass has been returned for firmware upgrade. All customers with WooKong-M GPS compasses purchased after June 15th, 2012 should contact their dealer or click http://www.dji-innovations.com/compass/submit_rma/ to get information on returning their GPS/Compass module for firmware upgrade. In turn, DJI is also developing a new firmware upgrade for the WooKong-M IMU based on the innovations developed for the compass bug fix. The IMU firmware upgrade will be released within the next several weeks and will have superior solutions for the following: better resistance to vibration, less white lights and better compass tracking. A further announcement will be made when this firmware enhancement will be available. We are excited that we not only discovered the fault and developed a fix, but also created a superior firmware in the process. We look forward to working with all our customers to quickly replace their affected compasses and get everyone back in the air.




Old GPS Module (OKAY TO FLY): has 2 black side pads when looking from above



New GPS Module (NEEDS NEW FACTORY FIRMWARE): all white from above no special pads

For any questions or concerns about the potential system failure caused by the compass firmware bug,
customers and dealers can email support@dji-innovations.com for immediate support.
DJI Innovations Technology Co. Ltd.

OCT 19th, 2012

Spreadsheet updated...
https://docs.google.com/spreadsheet/...XSjBxdGc#gid=1
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Old Oct 19, 2012, 09:28 AM
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here is the PDF: http://dl.dropbox.com/u/53205026/DJI...%20FAILURE.pdf
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Old Oct 19, 2012, 09:29 AM
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Yes thats Right mine crashed with the old gps but with repaired esc so it could have been the reason to the crash.
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