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Battery System Error on take-off
812 27 2018-9-29
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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Hi all,

I haven't flown my bird for a good while so when I powered her up, I was requested to update firmware. Everthing seemed to go fine!

However, as soon as I take off, I immediately get a Battery System Error (red lights) and low voltage message.
I've rolled back the firmware and updated again but still the same.

I've tried both my batteries... Both the same so I'm guessing it's the drone itself?!?!!

Can't do anything.. Please help!!!

Thanks in advance,

Simon

2018-9-29
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ALABAMA
Captain
Flight distance : 9367841 ft
United States
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Try refreshing the firmware again.
2018-9-29
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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I've done this.
I downgraded the firmware and still the same.
I've now installed the latest again but still getting battery system error.
2018-9-29
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Peterx
Captain
Flight distance : 1444042 ft
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If you leaved the FW bin file on the SD card then power up your P3 system and observe the refresh of the battery FW via go app
2018-9-29
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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The .bin file is on the ad card.
Do I just insert each battery and power on the remote and bird?

The strange thing is... When the bird is warming up or ready for flight all seems good. It's only when I take off that I see the errors????
2018-9-29
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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Also, the .txt file says success at the end
2018-9-29
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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I've just looked on the sd card... The bin file has the filename P3C_FW_V99.99.9999.bin Is this correct?!?!?!
Is this correct??

According to the DJI website, the latest version is P3C_FW_V01.09.0200.bin

Could this be the issue?
2018-9-29
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Weiguoorng
lvl.1

China
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2018-9-30
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Peterx
Captain
Flight distance : 1444042 ft
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Do you have a screen shot of you battery status ? The FW filename is right if you did the upgrade via Go app.
2018-9-30
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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After auto take-off the drone hovers but as soon as I ascend I get the error message.
20180930_191628.jpg
20180930_191706.jpg
2018-9-30
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Mark The Droner
Captain
Flight distance : 2917 ft
United States
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I would clean the battery contacts - see if that helps.  

Large gold tabs in AC

Tips of data contacts in AC

Data contacts on battery

Isopropyl alcohol works nicely
2018-9-30
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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If it was the contacts I would get the error on power up. The error only comes on when I start the ascend.
2018-9-30
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Peterx
Captain
Flight distance : 1444042 ft
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Are the 4 pins in AC by side the 2 power pins clean too? They are reading the battery status and conduct the data to the main board of the P3. Your battery cells are fine.
2018-9-30
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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Peterx Posted at 2018-9-30 12:04
Are the 4 pins in AC by side the 2 power pins clean too? They are reading the battery status and conduct the data to the main board of the P3. Your battery cells are fine.

The pins look fine... I gave them a wipe and the battery contacts too... Still same!
2018-9-30
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WD9EON
First Officer
Flight distance : 622844 ft
United States
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Stokesy_SWFC Posted at 2018-9-30 12:56
The pins look fine... I gave them a wipe and the battery contacts too... Still same!

Is it a DJI battery or a clone?
2018-9-30
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Bashy
Captain
Flight distance : 549140 ft
United Kingdom
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Perhaps the battery is EOL, the take off is putting too much strain on it? or, the battery is not getting the FW update
2018-9-30
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Peterx
Captain
Flight distance : 1444042 ft
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Did you have a look to the contacts in the aircraft too ? Are they straight ? If 1 pin bent only few degrees and you take off then the Ac loses the connection to the calculator unit inside the battery. If i read right before the take off it´s all ok and during take off the error message pops up.
2018-9-30
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
United Kingdom
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Bashy Posted at 2018-9-30 20:03
Perhaps the battery is EOL, the take off is putting too much strain on it? or, the battery is not getting the FW update

How do i tell if the battery is updating correctly?
2018-10-1
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
United Kingdom
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Peterx Posted at 2018-9-30 21:52
Did you have a look to the contacts in the aircraft too ? Are they straight ? If 1 pin bent only few degrees and you take off then the Ac loses the connection to the calculator unit inside the battery. If i read right before the take off it´s all ok and during take off the error message pops up.

The pins look fine. I'll take another look later and post a photo when im home feom work.

This is so annoying now. Can't do a thing with it until a resolve this issue.
2018-10-1
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
United Kingdom
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Stokesy_SWFC Posted at 2018-10-1 04:33
How do i tell if the battery is updating correctly?

Both batteries have less than 20 charges.
2018-10-1
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ALABAMA
Captain
Flight distance : 9367841 ft
United States
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This may sound stupid, but since this happened after an update, keep trying to update to the latest firmware over and over again.  It may just be a quirk, or you could have some damaged hardware.
2018-10-1
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stuka75
First Officer
Flight distance : 85682 ft
United States
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Sounds like battery has lost capacity. You charged it fully before attempting flight and got all four lights? If it sat on shelf for long period it may have gone into hibernation mode. the first picture doenst make sense without any low battery or critical battery warnings, but does have battery voltage??
2018-10-1
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Peterx
Captain
Flight distance : 1444042 ft
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The voltage seams to be ok for 65% charge on battery but the chip in and around the battery tells critical low voltage???
2018-10-1
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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All looks good.
20181001_205426.jpg
2018-10-1
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Peterx
Captain
Flight distance : 1444042 ft
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Nothing strange,looks ok. Try a refresh with the original file name P3C_FW_V01.09.0200.bin . Delete the other FW file  and the log file before you copy that to your SD card.
Power up the RC and AC (without card in cam) wait for the reaction of the AC and then insert the card. Wait a minute or two.
2018-10-1
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Peterx
Captain
Flight distance : 1444042 ft
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Got you any fix via software yet?
2018-10-2
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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I did what you said.
Only firmware on sd card.
Powered up then inserted sd card.
Got same error.
20181003_141524.jpg
2018-10-3
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Stokesy_SWFC
lvl.2
Flight distance : 6368 ft
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When I powered up the AC without the SD card, I got a red flashing LED.
When I inserted the SD card, I got a solid green LED.


This log was added to the SD card:

========== 2014.01.01 00:00:16 remo-con disconnect======
Packet: P3C_FW_V01.00.0017.bin
Upgrading ...

========== 2014.01.01 00:00:15 remo-con disconnect======
Packet: P3C_FW_V01.00.0017.bin
Upgrading ...

========== 2014.01.01 00:00:15 remo-con disconnect======
Packet: P3C_FW_V01.00.0017.bin
Upgrading ...

========== 2015.10.01 17:35:49 =====================
Packet: P3C_FW_V99.99.9999.bin
Upgrading ...
Result: Success.

========== 2016.03.25 12:18:37 =====================
Packet: P3C_FW_V99.99.9999.bin
Upgrading ...
Result: Success.

========== 2017.05.11 13:00:35 =====================
Packet: P3C_FW_V99.99.9999.bin
Upgrading ...
Result: Success.

========== 2018.08.31 15:12:12 =====================
Packet: P3C_FW_V99.99.9999.bin
Upgrading ...
Result: Success.

========== 2018.09.27 18:58:49 =====================
Packet: P3C_FW_V99.99.9999.bin
Upgrading ...

========== 2014.01.01 00:00:13 remo-con disconnect======
Packet: P3C_FW_V01.08.0100.bin
Upgrading ...
Result: Success.

========== 2014.01.01 00:00:14 remo-con disconnect======
Packet: P3C_FW_V01.08.0100.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2014.01.01 00:00:14 remo-con disconnect======
Packet: P3C_FW_V01.08.0100.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2014.01.01 00:00:14 remo-con disconnect======
Packet: P3C_FW_V01.08.0100.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2014.01.01 00:00:14 remo-con disconnect======
Packet: P3C_FW_V01.08.0100.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2014.01.01 00:00:14 remo-con disconnect======
Packet: P3C_FW_V01.08.0100.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2014.01.01 00:00:14 remo-con disconnect======
Packet: P3C_FW_V01.08.0100.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2014.01.01 00:00:14 remo-con disconnect======
Packet: P3C_FW_V01.08.0100.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2018.09.28 10:46:38 =====================
Packet: P3C_FW_V99.99.9999.bin
Upgrading ...
Result: Success.

========== 2018.10.03 13:48:28 =====================
Packet: P3C_FW_V01.09.0200.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2014.01.01 00:00:14 remo-con disconnect======
Packet: P3C_FW_V01.09.0200.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2018.10.03 14:27:55 =====================
Packet: P3C_FW_V01.09.0200.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

2018-10-3
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