Phantom 3 Standard range mod , let's do it together...

WilliamM said:
I believe it's a Windows program.
Click to expand...
On Mac:
Screen Shot 2017-01-24 at 9.26.02 PM.png
 
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skyacramer said:
What's the best best/latest video on the install for this Here are the only three things you need Sir... First what this:
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< this is what you will be doing (Actual Mod)
But you may want to Downgrade first So watch this..
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You may want to check the Mod?? So watch this..
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That covers most things for you ;)
Click to expand...
 
Unfortunately I did upgrade AC and RC to the 1.08.01 firmware via DJI Go app.

As there is no FTP access possible with this firmware version I downgraded the AC to 1.05.07.
As a sidenote, downgrading worked only with the debug method (in 3 steps, one version at a time back) as I got always the same/older version error message, also the academy method gave me a blank list of options all the time.

So, with FW 1.05.07 on the AC FTP access and telnet (via rcS mod) is working again.

There is no way however accessing the RC.
Can the RC firmware be downgraded or telnet/FTP activated in any way? With serial connection maybe (cable header already soldered)?

Any input is welcome.
 
I think the Remote Controller can be downgraded using the hidden menu got by holding down the tutorial button (Graduates Cap) in DJI Go.
That would be the safest being a DJI approved method.
 
Ozz said:
I think the Remote Controller can be downgraded using the hidden menu got by holding down the tutorial button (Graduates Cap) in DJI Go.
That would be the safest being a DJI approved method.
Click to expand...


Thanks for your input, but that always gives me a totaly empty list of downgrade options.
 
Ojcze Nasz said:
Got P3S yesterday. Not happy with range. Considering I also live in dense residential area with hundreds of wifi networks around.
So I tried to hack(?) in to it to see what can be done.
I was so far successful getting inside via FTP :

IP: 192.168.1.1
User : root
Pass : Big~9China

Now I can see entire linux system,
Found an interesting bit in configuration file that loads the module with parameter if the location is 'GB'. I presume 'GB' means europe (as opposed to US and JP )

This is from one the three interesting rcS files inside /etc/config/

rcSap

#!/bin/sh

# This script runs when init it run during the boot process.
# Mounts everything in the fstab

mount -o remount +w /
mount -t tmpfs mdev /dev
mkdir -p /dev/pts
mount -t devpts devpts /dev/pts
mount -t sysfs sysfs /sys
mount -t proc proc /proc
mount -t tmpfs tmpfs /tmp
echo /sbin/mdev > /proc/sys/kernel/hotplug
mdev -s

mknod /dev/caldata b 31 6
mount -t debugfs none /sys/kernel/debug
mkdir /var/run
mkdir /var/lock
mkdir /var/log
/sbin/klogd
/sbin/syslogd

insmod /lib/modules/3.10.49/compat.ko
insmod /lib/modules/3.10.49/crypto_blkcipher.ko
insmod /lib/modules/3.10.49/crc-ccitt.ko
insmod /lib/modules/3.10.49/arc4.ko
insmod /lib/modules/3.10.49/cfg80211.ko
insmod /lib/modules/3.10.49/mac80211.ko
insmod /lib/modules/3.10.49/ath.ko
country=`fw_printenv -n country`
if [ $country = "GB" ];then
insmod /lib/modules/3.10.49/ath9k_hw.ko cert_country=1
else
insmod /lib/modules/3.10.49/ath9k_hw.ko
fi
insmod /lib/modules/3.10.49/ath9k_common.ko
insmod /lib/modules/3.10.49/ath9k.ko

echo dji > /proc/sys/kernel/hostname
/etc/init.d/sysfixtime boot

iw dev wlan0 del
#iw phy phy0 set antenna all all
iw phy phy0 set antenna_gain 0
iw phy phy0 set distance 0
iw phy phy0 interface add wlan0 type managed

ifconfig wlan0 up

brctl addbr br-lan
ifconfig br-lan 192.168.1.1 netmask 255.255.255.0 up
dwifi ap start
apsrv &

ifconfig usb0 hw ether 60:60:1f:ff:ff:ff up
brctl addif br-lan usb0
brctl addif br-lan wlan0

ifconfig lo 127.0.0.1 up
/usr/sbin/udhcpd -S /etc/udhcpd.conf &
#telnetd -l /bin/ash &
mkdir -m 0755 -p /var/run/vsftpd
/usr/sbin/vsftpd &
djiled.sh &

iw phy phy0 set retry short 1 long 1
iw phy phy0 set rts off
iw phy phy0 set frag 256
iw dev wlan0 set noack_map 0x00c0

End of that file....

So in case you missed it or don't want to read entire file here is the interesting bit :

country=`fw_printenv -n country`
if [ $country = "GB" ];then
insmod /lib/modules/3.10.49/ath9k_hw.ko cert_country=1
else
insmod /lib/modules/3.10.49/ath9k_hw.ko
fi

For those who are not programmers, this part of script decides how to load the wifi module (driver).
If the country is GB it will append a parameter "cert_country=1" to the module.
Otherwise it will load the driver without parameter , without limiting the transmit power <---- and THIS IS EXACTLY WHAT WE ALL WANT ;)

I have been able to modify via this FTP connection so I removed 'cert_country=1' from it hoping it will do the trick, however after the reboot the file came back to original state (overwriting my changes). Need some help to get this stay permanently.

Hopefully someone with more brains can help.
Have anyone tried connecting via TTL serial ?

Hope to get this solved soon, range is crap on stock P3S in europe mode.
I'm however extremely happy with the performance of the aircraft itself. Amazing stability, amazing quality video, I definitely do not need 4k.

Good luck. And don't forget to share your findings :p

Thanks.
Tom.

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If you find this useful please donate any sum to help me get power meter which i need to finish the 5.8ghz side mod.
Chip in for power meter.
Thanks all.
Click to expand...

Hey!!
I am a beginner with a phantom 3 4K. I am currently living in Finland so the range is limited. this is all I need to "hack" the drone and be able to amplify the range?
The FTP can be something like Filezilla?
Thank you.
 
Rockstar3D said:
Hey!!
I am a beginner with a phantom 3 4K. I am currently living in Finland so the range is limited. this is all I need to "hack" the drone and be able to amplify the range?
The FTP can be something like Filezilla?
Thank you.
Click to expand...
Search "magic power" thread on here. Its this mod but automated with an app, but im unsure if it works for the 4k model. A look through that thread should answer that though
 
Rockstar3D said:
I will get now the P3 advance, so it should work on it right?
Click to expand...

No - that one uses a different transmission system - lightbridge - but the P3A would probably be good enough without mods - if you like you could get Parabolic Reflectors for $5 or so which will help a lot without any permanent changes to the controller.
 
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Hello, my P2 Standard is on fw 1.8.1. with original hw no mod i only reached 50m wide at 30m high. With build a windsurfer myself i get 100m high at 200m distance than i get RTH... lost signal.. what can i do? How i see the fw of rc?
 

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