Poll

Has the hackabiliy of the E4 made you buy one :  

Yes, I was already looking at the competition at a similar price, but the hack swung it to E4
239 (26.4%)
Yes, I'd not considered buying a TIC before, but 320x240 resolution at this price justifies it (as either tool or toy!)
425 (46.9%)
Yes, I was going to buy an E5/6/8 class of unit but will now get the E4
43 (4.7%)
No, but am looking out for a cheap i3 to hack
41 (4.5%)
Not yet, but probably will if now that a closed-box hack becomes is possible
158 (17.4%)

Total Members Voted: 781

Author Topic: Flir E4 Thermal imaging camera teardown  (Read 2635501 times)

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Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #100 on: October 24, 2013, 09:11:55 am »
Okay,

I'm not good enough to make heads or tails of a lot of what I'm seeing here.  I don't have a full version of IDA Pro so I can't disassemble for ARM, but I can as a generic binary.  I'm still learning but maybe this will mean something to someone else.  Attached are the results of IDA's disassembly and code generation.

Not really useful unfortunately - it really needs a disassembler that knows the instruction set, even if it doesn't understand the .EXE structure
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Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #101 on: October 24, 2013, 09:17:57 am »
I've been silently following the E4 related threads for some time. Must say, juicy information :)

I don't have an E4 (yet... -  that may change :) ) but I've tried to put together some bits of information that I've found around in this thread. IMHO the simple way to go is using the Web Interface (you can access most, if not all, camera settings from there - including a special Service Menu) - all menus conveniently listed in FlashBFS/system/web/ and sub-folders

..and if you send a <space> to the UART during boot....
SETTINGS:
0) IP address: 0.0.0.0
1) Subnet Mask: 0.0.0.0
2) Boot delay: 1 seconds
3) DHCP: Enabled
4) Reset to factory default configuration
5) Autoboot: NK from NOR
6) MAC address: 00:40:7F:0B:91:39
7) Host connection: (USB MSD)
Option 7 may be intersting - options are USB BSD, ETHERNET and USB RNDIS, which provides virtual ethernet over USB - fairly sure the latter is what enabled the i7 hack


As Mike said, if 7) is changed to USB RNDIS (and may be that IP address and subnet mask also need to be set manually and DHCP disabled - if the PC doesn't assign them automatically over USB), the web service can be accessed.

Now, as for the A310 FLIR (the attached PDF with Technical Notes), it must be password protected, but I see that the password is already known: webpasswd "IRCAM"

Therefore (stating the obvious) the login info should be:
Username: flir
Password: IRCAM

Could someone try this?

P.S. With the risk of being Cpt. Obvious, I just want to be involved in this and help if I can do so ;D

Is there something you need to do to get a PC (XP or Win7) to recognise and talk to a RNDIS device ? I tried setting this option but the PC didn't show anything other than the normal MSD and camera USB devices.

I am fairly convinced there is a secret menu that allows access to this setting without needing to access the serial port, probably a a magic key combination.
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Offline nitroxide

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Re: Flir E4 Thermal imaging camera teardown
« Reply #102 on: October 24, 2013, 09:30:22 am »
Yes, it appears there's a FLIR provided IP over USB driver. I'm digging up for that now.
 

Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #103 on: October 24, 2013, 09:38:58 am »
This looks useful http://carolos.za.net/software.html
Quote
   

ABOUT ChARMeD:
ChARMeD is a Windows Mobile / Pocket PC /  Win CE (for ARM CPUs) Disassembler and Assembler

The name ChARMeD stands for:
  Carolo's Hexadecimal ARM Editor and Disassembler

FEATURES:

·    Disassemble a Windows CE Executable for ARM CPUs.
·    Assemble instructions in ARM Assembler.
·    Upload modified file to Windows CE Device.

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Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #104 on: October 24, 2013, 10:09:57 am »
Rats! ChARMed doesn't seem to understand this flavour of ARM... Anyone have access to a full version of IDA PRO?
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Offline BravoV

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Re: Flir E4 Thermal imaging camera teardown
« Reply #105 on: October 24, 2013, 10:20:30 am »
I am fairly convinced there is a secret menu that allows access to this setting without needing to access the serial port, probably a a magic key combination.

Not an expert, thinking of that since now there is a possibly working dis-assembler + with that believe, maybe it might be a time saver to focus only at the IO related routines/code section than handles the keys and it's keys lookup table ?  :-//

Offline equinoxe

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Re: Flir E4 Thermal imaging camera teardown
« Reply #106 on: October 24, 2013, 10:42:09 am »
Rats! ChARMed doesn't seem to understand this flavour of ARM... Anyone have access to a full version of IDA PRO?

Jups, I have an old IDA Pro 6.2.1 running on my Mac and I found an even older 6.1.0 on my windows laptop.
Not that I am anywhere good at disassembling ARM code, but drop me a PM with a link to these files and I'll give it a shot.

Regards,

EqX
 

Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #107 on: October 24, 2013, 11:21:56 am »
 I think I've now worked out all the I2C devices :
0x92 Temperature sensor
0xD0 Realtime clock
0xAE EEPROM
0xAA BQ27510 battery manager

Only just figured out the last one as the device marking was only a partial number. This has the capability of hiding data so not impossible that it might be involved in more than battery management  - not looked at what it's reading from it & when yet.

The visible camera will also have an I2C interface but it's not directly connected to the main I2C bus - may be via a level shifter as these modules are usually on 1.8v levels, or on a different bus.
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Offline amyk

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Re: Flir E4 Thermal imaging camera teardown
« Reply #108 on: October 24, 2013, 11:39:50 am »
Rats! ChARMed doesn't seem to understand this flavour of ARM... Anyone have access to a full version of IDA PRO?
It's a mix of Thumb mode and regular. ChARMed only supports regular ARM.

Anyway I took a look with an old version of IDA (not all ARM instructions supported so there's valid code mixed with bits of rubbish) and it looks like it might be reading resolution etc. from the sensor itself over I2C...
 

Offline nitroxide

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Re: Flir E4 Thermal imaging camera teardown
« Reply #109 on: October 24, 2013, 11:45:36 am »
I'm sorry it took some time (I still have to work on other stuff meantime). I've found the drivers! I can clearly confirm these contain the FLIR RNDIS driver (I've studied the drivers MSI content and found among other drivers the RNDIS driver).

Mike, could you please install the Device Drivers, do the USB RNDIS setting and see if you get the device discovered in Windows? You find the drivers at FLIR support page on Download Software tab (Product: PC Software (Thermography) -> FLIR Device Drivers).
 

Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #110 on: October 24, 2013, 12:00:01 pm »
Anyway I took a look with an old version of IDA (not all ARM instructions supported so there's valid code mixed with bits of rubbish) and it looks like it might be reading resolution etc. from the sensor itself over I2C...
That's the next thing on my list to look at when I get time - I saw some I2C traffic I couldn't figure out which turned out to be the power manager, but there is almost certainly another I2C bus used by the visible cam, which I'll find and probe to see if there are any other devices on it, and if it's connected to the sensor connector.
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Offline nitroxide

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Re: Flir E4 Thermal imaging camera teardown
« Reply #111 on: October 24, 2013, 01:43:41 pm »
From the Ex firmware, using the resources in the web folder and some fiddling around I was able to make the index.asp run on PC  just to have an overview of the menu items available in the web interface. See attached image.

I'm pretty sure the EEPROM->Edit Camera Information menu allows changing the 'Camera part number' to the one of E8 for instance. There seems to be a locking mechanism in place for EEPROM editing (protected by password) - I don't know yet how it's implemented but it may have to do with Mike's attempt to directly modify the EEPROM content: Mike: Hmmm - changed eeprom and it changed it back....! See also attached a picture of the EEPROM->Edit Camera Information.

 

Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #112 on: October 24, 2013, 02:00:42 pm »
I'm pretty sure the EEPROM->Edit Camera Information menu allows changing the 'Camera part number' to the one of E8 for instance. There seems to be a locking mechanism in place for EEPROM editing (protected by password) - I don't know yet how it's implemented but it may have to do with Mike's attempt to directly modify the EEPROM content: Mike: Hmmm - changed eeprom and it changed it back....! See also attached a picture of the EEPROM->Edit Camera Information.
My guess is the lock/unlock is a simple mechanism to prevent accidental changes - either a value in EEPROM or a password in the firmware.

Had a very quick scan trhough a disassembly of FVP.DLL, and there is some code that does a 16 bit checksum of an area of memory under certain circumstances puts 80 and 60 in specific locations, so probably some default behaviour if anything isn't correct. Need to look in more detail at what gets read from eeprom when..
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Offline nitroxide

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Re: Flir E4 Thermal imaging camera teardown
« Reply #113 on: October 24, 2013, 02:17:21 pm »
Thanks for the insight on that! I'll try to do some disassemblying too, maybe I can find anything useful.

What's your opinion on the web interface -> EEPROM -> Edit Camera Information -> Camera part number, edit to E8 part number? Do you think that would work? While some dissasebly work could shed a light on how that info is used (I'll try to find out), what's your guess?
 

Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #114 on: October 24, 2013, 02:55:19 pm »
I have tried changing E4 to E8 in the eeprom with no effect.

I have found code (100033AC for those following along) that reads 16 bytes from the EE, checksums it and if sums OK, stores the EEPROM values somewhere , and if not stores 80 and 60 in the same locations. Still looking at other eeprom related code. I think the 6 near the resoltion data is also significant - seems to correlate with the "downsampling setting" vales displayed at boot.

I only had a very quick try at changing the ee so could be I got the sum wrong.
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Offline mamalala

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Re: Flir E4 Thermal imaging camera teardown
« Reply #115 on: October 24, 2013, 03:00:14 pm »
I have tried changing E4 to E8 in the eeprom with no effect.

I have found code (100033AC for those following along) that reads 16 bytes from the EE, checksums it and if sums OK, stores the EEPROM values somewhere , and if not stores 80 and 60 in the same locations. Still looking at other eeprom related code. I think the 6 near the resoltion data is also significant - seems to correlate with the "downsampling setting" vales displayed at boot.

I only had a very quick try at changing the ee so could be I got the sum wrong.

Assuming that you made a backup of the EEProm: Did you try to erase the thing? Just speculating here, but maybe the contents will be built from the config files you had fiddled with earlier.

Greetings,

Chris
 

Offline Pinkus

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Re: Flir E4 Thermal imaging camera teardown
« Reply #116 on: October 24, 2013, 03:08:35 pm »
I will be on vacation now for a week ..... hoping that you guys find a solution in the meantime. :-+
If not; I can offer to lend an E8 for a day or two and read out the eeprom for you, assuming that it will help.
I can of course readout even more from the E8, but will need some help. If there is no progress here when I return, I will write a PM to Mike then.
I keep my fingers crossed.

Peter
 

Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #117 on: October 24, 2013, 03:22:53 pm »
I will be on vacation now for a week ..... hoping that you guys find a solution in the meantime. :-+
If not; I can offer to lend an E8 for a day or two and read out the eeprom for you, assuming that it will help.
I can of course readout even more from the E8, but will need some help. If there is no progress here when I return, I will write a PM to Mike then.
I keep my fingers crossed.

Peter

Info from an E8 would certainly be very useful - it can all be read out with a serial connection after removing 2 screws, unless we can find the hidden menu and get the USB stuff happenning and get a console prompt over it..!
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Re: Flir E4 Thermal imaging camera teardown
« Reply #118 on: October 24, 2013, 04:30:57 pm »
Hmmm. found code that looks for the string "T198389" from I2C address 0XA0, and if found "SB0801 detector   found " else "ULIS detector found"

Don't have the bootup text to hand to see which the E4 returns

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Re: Flir E4 Thermal imaging camera teardown
« Reply #119 on: October 24, 2013, 07:51:22 pm »
Interesting snittet...

FLIR::CObfuscatedStringResource::Obfuscate(class FLIR::CResourceValue const &, class FLIR::CResourceValue   &, enum    FLIR::CObfuscatedStringResource::OBFUSCATE_MODE_T)
.idata:0005B364   IMPORT


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Online mikeselectricstuff

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Re: Flir E4 Thermal imaging camera teardown
« Reply #120 on: October 24, 2013, 08:54:53 pm »
Looking at the USB RNDIS stuff.
Installed FLIR drivers as mentioned earlier.
No joy changing the USB mode in the boot menu, but at the console,
usbfn RNDIS
appears to do the trick - the PC popped up a USB driver prompt, and "install automatically" made it happy.
This setting is volatile.
usbfn Mass_Storage_Class
switches back to a PC-accessable drive,  can't see a way to run both at the same time.

IP address was 192.168.0.2 ( not what I had set in boot menu), as shown by ipconfig at boot menu
Web browser pointed at 192.168.0.2 gives this screen.

Telnet takes you to the console, and appears to allow access to everything that the serial console does, e.g. the I2C command to fiddle with eeprom.  8)

There is an FTP client, but the flir/3vlig login doesn't work


« Last Edit: October 24, 2013, 09:16:16 pm by mikeselectricstuff »
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Offline nitroxide

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Re: Flir E4 Thermal imaging camera teardown
« Reply #121 on: October 24, 2013, 09:13:59 pm »
Heh, that's good news Mike! Now if we only knew what needs to be changed to make it an E8 :)

Meanwhile I've spent some time trying to find out how to get in the Hidden Service Settings menu (to be able to enable USB RNDIS without opening the camera). I think "facet_Z3.rcc" is the file to check for key-combination parsing. I'm still trying to find out a way to decode parts of it.

 
 

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Re: Flir E4 Thermal imaging camera teardown
« Reply #122 on: October 24, 2013, 09:24:59 pm »
Heh, that's good news Mike! Now if we only knew what needs to be changed to make it an E8 :)

Meanwhile I've spent some time trying to find out how to get in the Hidden Service Settings menu (to be able to enable USB RNDIS without opening the camera). I think "facet_Z3.rcc" is the file to check for key-combination parsing. I'm still trying to find out a way to decode parts of it.
Bear in mind it may also be a magic key combination during startup that enables the menu in the UI - this was the case with the i7 .
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Offline nitroxide

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Re: Flir E4 Thermal imaging camera teardown
« Reply #123 on: October 24, 2013, 09:26:36 pm »
Another thing. It would be really interesting (at least for me if not for others also) what would happen if you enable the UVC mode for USB. Does this result in a USB video stream of thermographic video (basically like webcam)? 
 

Offline nitroxide

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Re: Flir E4 Thermal imaging camera teardown
« Reply #124 on: October 24, 2013, 09:34:21 pm »
Heh, that's good news Mike! Now if we only knew what needs to be changed to make it an E8 :)

Meanwhile I've spent some time trying to find out how to get in the Hidden Service Settings menu (to be able to enable USB RNDIS without opening the camera). I think "facet_Z3.rcc" is the file to check for key-combination parsing. I'm still trying to find out a way to decode parts of it.
Bear in mind it may also be a magic key combination during startup that enables the menu in the UI - this was the case with the i7 .

I would say it has to be in this file as all QMLs (including SettingsPage.qml) and menu navigation are generated from this .rcc file.
 


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