Hey guys just some update about my case, I called DJI yesterday and they said they will investigate my case and asked me to fill a questionnaire. I did that and haven't heard anything back from DJI yet, hopefully I can get the result soon.

Meanwhile, thanks to flylitchi.com, I was able to open my flight record, and I noticed in the last second before i lost communication, the battery voltage rise from 15.172V to 15.613V, it doen't look normal compare to the values before. Maybe it's related to the crash?
and myles can you also upload you flight record file? maybe we can find something in common.

42.35596	-71.0835	253	253	24.23	1463	258	258	36.84	1843	1.43068E+12	07:44.6	07:44.6	19	0	0	15.36
42.35596	-71.0835	254	254	24.44	1461	258	258	36.84	1843	1.43068E+12	07:44.7	07:44.7	19	0	0	15.206
42.35597	-71.0835	254	254	24.56	1459	258	258	36.84	1843	1.43068E+12	07:44.8	07:44.8	19	0	0	15.206
42.35597	-71.0835	254	254	24.97	1457	258	258	36.84	1843	1.43068E+12	07:44.9	07:44.9	19	0	0	15.206
42.35598	-71.0835	254	254	25.09	1455	258	258	36.84	1843	1.43068E+12	07:45.0	07:45.0	19	0	0	15.206
42.35599	-71.0835	254	254	25.21	1453	258	258	36.84	1843	1.43068E+12	07:45.1	07:45.1	19	0	0	15.206
42.356	-71.0834	254	254	25.82	1449	258	258	36.84	1843	1.43068E+12	07:45.3	07:45.3	19	0	0	15.206
42.356	-71.0834	254	254	25.94	1448	258	258	36.84	1843	1.43068E+12	07:45.5	07:45.5	19	0	0	15.206
42.35601	-71.0834	254	254	25.87	1445	258	258	36.84	1843	1.43068E+12	07:45.6	07:45.6	18	0	0	15.206
42.35601	-71.0834	254	254	25.38	1443	258	258	36.84	1843	1.43068E+12	07:45.7	07:45.7	18	0	0	15.206
42.35602	-71.0834	254	254	24.51	1441	258	258	36.84	1843	1.43068E+12	07:45.8	07:45.8	18	0	0	15.206
42.35603	-71.0834	254	254	23.39	1439	258	258	36.84	1843	1.43068E+12	07:45.9	07:45.9	18	0	0	15.172
42.35603	-71.0834	254	254	22.27	1438	258	258	36.84	1843	1.43068E+12	07:46.0	07:46.0	19	0	0	15.172
42.35604	-71.0833	254	254	20.23	1434	258	258	36.84	1843	1.43068E+12	07:46.1	07:46.1	19	0	0	15.172
42.35604	-71.0833	254	254	19.11	1433	258	258	36.84	1843	1.43068E+12	07:46.2	07:46.2	19	0	0	15.172
42.35604	-71.0833	254	254	19.11	1433	258	258	36.84	1843	1.43068E+12	07:46.3	07:46.3	19	0	0	15.172
42.35605	-71.0833	254	254	17.31	1430	258	258	36.84	1843	1.43068E+12	07:46.4	07:46.4	19	0	0	15.172
42.35606	-71.0833	254	254	16.69	1429	258	258	36.84	1843	1.43068E+12	07:46.5	07:46.5	19	0	0	15.172
42.35606	-71.0833	254	254	15.58	1428	258	258	36.84	1843	1.43068E+12	07:46.6	07:46.6	19	0	0	15.172
42.35606	-71.0833	254	254	14.77	1427	258	258	36.84	1843	1.43068E+12	07:46.7	07:46.7	19	0	0	15.172
42.35607	-71.0833	254	254	13.66	1426	258	258	36.84	1843	1.43068E+12	07:46.8	07:46.8	19	0	0	15.172
42.35607	-71.0833	254	254	12.85	1425	258	258	36.84	1843	1.43068E+12	07:46.9	07:46.9	19	0	0	15.172
42.35607	-71.0833	254	254	12.05	1424	258	258	36.84	1843	1.43068E+12	07:47.0	07:47.0	19	0	0	15.172
42.35607	-71.0833	254	254	11.13	1423	258	258	36.84	1843	1.43068E+12	07:47.1	07:47.1	19	0	0	15.172
42.35608	-71.0833	254	254	10.13	1423	258	258	36.84	1843	1.43068E+12	07:47.2	07:47.2	19	0	0	15.172
42.35608	-71.0833	254	254	9.02	1422	258	258	36.84	1843	1.43068E+12	07:47.4	07:47.4	19	0	0	15.172
42.35608	-71.0833	254	254	8.02	1422	258	258	36.84	1843	1.43068E+12	07:47.5	07:47.5	19	0	0	15.172
42.35608	-71.0833	254	254	6.22	1421	258	258	36.84	1843	1.43068E+12	07:47.6	07:47.6	18	0	0	15.172
42.35608	-71.0832	254	254	5.3	1421	258	258	36.84	1843	1.43068E+12	07:47.7	07:47.7	19	0	0	15.172
42.35608	-71.0832	254	254	4.3	1420	258	258	36.84	1843	1.43068E+12	07:47.8	07:47.8	19	0	0	15.172
42.35608	-71.0832	254	254	3.3	1420	258	258	36.84	1843	1.43068E+12	07:47.9	07:47.9	18	0	0	15.172
42.35608	-71.0832	254	254	2.5	1420	258	258	36.84	1843	1.43068E+12	07:48.0	07:48.0	18	0	0	15.613
42.35608	-71.0832	254	254	2	1420	258	258	36.84	1843	1.43068E+12	07:48.1	07:48.1	18	0	0	15.613
42.35608	-71.0832	254	254	1.41	1420	258	258	36.84	1843	1.43068E+12	07:48.2	07:48.2	18	0	0	15.613
42.35608	-71.0832	254	254	0.92	1420	258	258	36.84	1843	1.43068E+12	07:48.3	07:48.3	18	0	0	15.613
42.35608	-71.0832	254	254	0.71	1420	258	258	36.84	1843	1.43068E+12	07:48.4	07:48.4	18	0	0	15.613
42.35608	-71.0832	254	254	0.45	1420	258	258	36.84	1843	1.43068E+12	07:48.5	07:48.5	18	0	0	15.613
42.35608	-71.0832	254	254	0.45	1420	258	258	36.84	1843	1.43068E+12	07:48.6	07:48.6	18	0	0	15.613
latitude	longitude	altitude(feet)	ascent(feet)	speed(mph)	distance(feet)	max_altitude(feet)	max_ascent(feet)	max_speed(mph)	max_distance(feet)	time(millisecond)	datetime(utc)	datetime(local)	satellites	pressure(Pa)	temperature(F)	voltage(v)

DJIFlightRecordReadable_2015-05-03_(16-01-21).zip (38.29 KB, Down times: 46)

2015-5-5 Upload

Click on the file name to download attach
readable log
Silver

silverqsy@gmail Posted at 2015-5-6 09:36
Hey guys just some update about my case, I called DJI yesterday and they said they will investigate  ...

I have the flight data file. Do you have an app that can open it?

I got an error using that site it said "Error: Log is corrupt."

silverqsy@gmail Posted at 2015-5-6 09:36
Hey guys just some update about my case, I called DJI yesterday and they said they will investigate  ...

Thanks for sharing and the followup.

Changes in voltage could also mean a descent that "eases of" the load on the motors...
Keep us updated when you know more.

Tahoe_Ed Posted at 2015-5-6 04:22
He has already started the process with DJI.

Hi Tahoe_Ed please take a look at my post in 46#, thanks!

silverqsy@gmail Posted at 2015-5-6 23:51
Hi Tahoe_Ed please take a look at my post in 46#, thanks!

Still no reply from Dji Silver?

Same Question

I have the flight data file. Do you have an app that can open it ?

You can use this site: http://flylitchi.com/logs

nurzia Posted at 2015-5-7 21:08
You can use this site: http://flylitchi.com/logs

Thats just a CSV converter..

christer@christ Posted at 2015-5-7 06:05
Still no reply from Dji Silver?

Still no words from them

sebiss.hotmail Posted at 2015-5-7 20:33
Same Question

I have the flight data file. Do you have an app that can open it ?

http://flylitchi.com/logs
this site works for me! make sure you copied the flight record file from the DJI app folder, it should be named like DJIFlightRecord_YYYY-MM-DD_[HH-MM-SS].txt

silverqsy@gmail Posted at 2015-5-8 03:58
Still no words from them

Try post the link to this thread to their Facebook page, and ask if they could kindly get back to you, as you wish to sort this out after spending over 1000$ on this thing...

Those all of a sudden power losses are scary because it could be something you cant solve with an update, maybe bad batteries or bad connection. Some ppl say the smart batteries are way easier to remove now, maybe thats not a good thing. I hope the early adopters are not the fools in the end

This is a disturbing thread.  We have read reports of more than one Phantom 3 dropping out of the sky.  Some people have suggested it was a lack of battery conditioning.  Others are suggesting the contacts are loose or the battery is not plugged in all the way.  I think these are not likely causes.

I believe it is a firmware bug in the "smart" battery.  Perhaps the "smart" battery is not so "smart" right now.  I hope the logs help the engineers at DJI discover an issue.  In the mean time I suggest DJI take a second close look at the battery code.
I am hoping for a 1.1.9 or a 1.2.0 soon to address this issue.

you can see nicely that the voltage goes to 15.1V under heavy load and raise again to 15.6V in slow flying but thats normal and thats why the Phantom1 or P2 showed the red battery  warning indicator only in full speed when the battery is near to the end and not during hovering. It seems the log files in the phantom are more important now.  
This is not the complete log file, only 4 minutes of it. It just shows that you were flying really fast for 2 minutes.

tchavalas@panos Posted at 2015-5-9 00:14
This is a disturbing thread.  We have read reports of more than one Phantom 3 dropping out of the sk ...

New FW out today...
What concerns me more, is how Dji just ignore their customers and hang them out to dry, like they have no responsibility.
"Oh, you crashed your new Phantom 3, and wonder what the cause was? See if we care"

Scared to update FW on my drone now after reading all this since I've had no issues yet on the stock FW.... :|
Sorry OP, hopefully there is a resolution for your loss!

Daninho Posted at 2015-5-9 00:26
you can see nicely that the voltage goes to 15.1V under heavy load and raise again to 15.6V in slow  ...

My attachment in that post was the full flight log, take a look and you will understand why I suspect it's abnormal. I had several times moving and making a stop, the voltage change was't  that much, except the last one.
I wish I had the log in the phantom but obviously it's not available

christer@christ Posted at 2015-5-9 03:31
New FW out today...
What concerns me more, is how Dji just ignore their customers and hang them ou ...

I totally agree, I'm kind of disappointed by hearing nothing back from them for a whole week and I think I'll call them again, or I may post this in Chinese social media to raise more awareness.

Kind of incredible, they cowardly hide behind the fact, that no once can sue them for anything where they are, so the can basically refuse to reply to any inquiry at all.
If they were a company in my country, they would be put down quickly by the court for not following the law for consumers, which in fact has allot of rights, thats why its better to buy from a local dealer, then the responsibility will lay on his shoulders...
This is simply a demonstration of power, and i think i bettter understand now why they have so much money, shameless!

I think I am suddenly happy, to have only one battery coming with my Phantom 3 Pro'!
If these 'smart' batteries are truly the culprit, they need to be corrected soon...
Hopefully fixed before they start to send them out, for those of us who ordered a second or third battery.
By the way, my little green light, signifying I am truly online here, is still dark? Can someone please look into this? Ah, thanks.And how do I change my avatar pic? I uploaded one, but it never shows up!

RedHotPoker

Just curious about DJI's airport restriction in its firmware. You were flying near Logan International airport, probably not within the 5 miles but perhaps close to that. I was under the impression that after the five mile no fly limit there were additional restrictions on altitude that taper upwards until you hit the 400 ft above ground level that it won't exceed. Is it possible it calculated it was in the violating  airspace rules (altitude versus airport distance) and did an immediate auto-land directly from where it was, rather than a return to home?  Was your V2 updated to the firmware that had these restrictions when you flew it in the same area?

k1kas@verizon.n Posted at 2015-5-10 03:27
Just curious about DJI's airport restriction in its firmware. You were flying near Logan Internation ...

I don't think that is the case because if I am reading correctly, people are reporting the drone to literally fall out of the sky with zero power. Also their connection goes out, where as you would still see the camera even on auto land. This is really scary being an object of this size and weight literally falling from 400 feet onto someone's car/house/head.

fdnyfish Posted at 2015-5-4 20:31
Maybe that long nail in the video accidentally moved one of your switches to manual mode.

Now that was a really crass joke?

BTW - flipping to manual would not make the Phantom 3 drop from the sky? More than likely this was a complete power failure?

silverqsy@gmail Posted at 2015-5-8 04:00
http://flylitchi.com/logs
this site works for me! make sure you copied the flight record file fro ...

Hi, onnce in csv file you can transfer it to a site called flightreplay.com where you can wiew it., even with a 3d view option.

silverqsy@gmail Posted at 2015-5-9 12:35
I totally agree, I'm kind of disappointed by hearing nothing back from them for a whole week and I ...

Still nothing?

Received an email from DJI earlier today, saying they will “offer” me a 30% off on a new P3 purchase. And they didn't say anything about the cause of this case, but only gave me a "general reminder" saying that the remote connection can be interfered by "large amounts of concrete, steel, powerlines, wifi technology", which doesn't seem to exist in the middle of a river.

I feel this is NOT fair at all, basically DJI want me to pay 70% for this crash which was at least 70% their fault! I cannot recall any error from my side, and I provided everything I had to help them investigate my case. What disappointed me more is their attitude, it takes them a week to reply me a email, which doesn't really talk about my specific case. I guess maybe they were too busy dealing with these kind of cases...

I will attach part of the email, let me know what you guys think about this. At this point, I just cannot accept this "offer".

----------------------the email-----------------------------------------------------------------

Dear Siyang Qi,

Thank you for your patience.

We have reviewed your survey, and based on the incident you experienced, we want to provide further assistance.

First, we want to remind you that the remote connection our Phantoms use can be interfered with by outside sources as per FCC law. Flying near any large amounts of concrete, steel, powerlines, wifi technology, and other man-made sources can affect the behavior of the aircraft. Also, calibrating the compass over or near any of these objects or material can cause issues in flight. This is a general reminder and may not necessarily apply to your situation.

We would like to offer you 30% off a new purchase of a Phantom 3 Professional for $881.30

To accept this offer, please mail us your transmitter so we can register it and generate an invoice.

(the rest of the email is talking about how to accept the offer )

----------------------end of the email-----------------------------------------------------------------

---

gr8pics Posted at 2015-5-13 00:07
Still nothing?

please see my updated post

christer@christ Posted at 2015-5-10 02:59
Kind of incredible, they cowardly hide behind the fact, that no once can sue them for anything where ...

please see my updated post

silverqsy@gmail Posted at 2015-5-13 09:05
please see my updated post

There really need to be a guaranteed replacement policy for lost Phantoms.

30% is most definitely NOT a fair offer if it was proven to be a software or hardware issue. Question is how do you prove it if dji isn't going to share the cause?

So if the p3 would have crashed on land and you send it in they would have replaced it i guess because they are able to read out all the data. Those batterie errors are indeed scary
I guess in this case the problem is the lost quad, the 3dr solo stores all data in the remote for such cases

silverqsy@gmail Posted at 2015-5-6 09:36
Hey guys just some update about my case, I called DJI yesterday and they said they will investigate  ...

Your data set indicates to me that the power is spiked from a slowing of the power...not much but the volt spike would indicate this.

I have been following these glitches of loss power.... while we like to think it is a loose plug or over heating and DJI is to blame...let just remember Root cause investigations needs to be done as no one has all the data yet.

Your are in a flight restricted area (no big deal to this?)
But you have the heaviest density of signals in one area then just about any area on the planet going across the Charles River in Boston.
Wifi transmitters CDMA micro etc.
World largest Vandegraff generator in the world is their at museum from MIT
Never mind precautions to jam for security at Logan air.

Not the best place for a Sunday drive ehh?
You where on the edge of the signal range based on your distance?

We need more data

silverqsy@gmail Posted at 2015-5-6 09:36
Hey guys just some update about my case, I called DJI yesterday and they said they will investigate  ...

Your data set indicates to me that the power is spiked from a slowing of the power...not much but the volt spike would indicate this.

I have been following these glitches of loss power.... while w like to think it is a lose plug or over heating and DJI is to blame...let just remember Root cause investigations needs to be done as no one has all the data yet.

Your are in a flight restricted area (no big deal to this?)
But you have the heaviest density of signals in one area then just about any area on the planet going across the Charles River in Boston.
Wifi transmitters CDMA micro etc.
World largest Vandegraff generator in the world is their at museum from MIT
Never mind precautions to jam for security at Logan air.

Not the best place for a Sunday drive ehh?
You where on the edge of the signal range based on your distance?

We need more data

ams4900@yahoo.c Posted at 2015-5-13 12:20
Your data set indicates to me that the power is spiked from a slowing of the power...not much but  ...

So why didn't it fly home?

ams4900@yahoo.c Posted at 2015-5-13 12:20
Your data set indicates to me that the power is spiked from a slowing of the power...not much but  ...

First, the place I flied is 4 miles away from Logan Airport, it's almost at the edge of the flight restricted area, no way near the no fly zone and I was flying within the height limit, I didn't fly over crowd or the bridge so I feel nothing wrong about the flight. With that being said, I probably won't do this again since this case really scaed me.

Second, 400 meters isn't even close to the range of a P3, and I had full bar of image and control signal.

Last, I have flied my p2 in this area several times without any issue, so it's hard to believe signal interfere was the case. Even the signal was interfered by those things you were mentioned, it should be able to go home, unless the GPS and transmitter failed at the same time, or a complete battery fail, either way it's a mechanical or software error rather than user error.

I understand that the data maybe not enough for them to reach a conclusive result, and right now i'm not expecting a free replacement since i don't have any solid evidence showing it's completely their fault. However I do want a explanation and 30% off is just too little compare to my loss.

Sad to see the P3 is falling out of the sky just like the inspire 1 is.

silverqsy@gmail Posted at 2015-5-13 13:26
First, the place I flied is 4 miles away from Logan Airport, it's almost at the edge of the flight  ...

Some thoughts:

1) Check your DJI folder on your phone for a crash...txt file. It does try to save a log on an app crash.

2) You don't need a remote or battery charger. The 30% should be off just the P3, a battery, and a set of propellers.

Nice to know the 1 year warranty means nothing. I really thought this would a case where they would back there product 100%. Based on there response they don't know why it fell out of the sky so too bad for you.

DJI making a cool product isn't the only thing that makes you a great company!

You can sell someone a product, and you earn the profit from that sale. But you treat them well and back your product and you'll also gain all there friends & family as customers. And that will expand to massive amount of people.

How many of silverqsy's friend and family do you think your going to sell a drone to now?

That one replacement drone could of potentially generated 1000's of sales. Your loss!!!!!!!!!!!!!!!

Security should be the most important feature of every single UAV in the market. It should not be possible for a P3 to simply fall out of the sky. DJI should concentrate all their efforts in avoid these cases, because it's been clearly proven that they release products with firmware errors that makes our expensive aircraft crash.
All UAV should have an emergency power source that allowed you to at least make an emergency landing. Beside this, RTH should ALWAYS work no matter what.
Security features are those that make us all fly with confident and not scared. How am I going to fly my P3 knowing that it can fall at any moment?
I'm seriously regretting buying the P3 so soon and before reading all these cases. I do feel like I'm beta testing something that costed me 1500Euros and on top of that I have to pay for I new one (with a 30% discount) in case anything goes wrong. Simply not fair.