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[Q] hot to open a .LGU-File

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By nordic09, Junior Member on 10th February 2014, 11:59 PM
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hy cracks

I have a car radio with windows ce - manufacturer lg.
I would like to customize the firmware upgrade (change images....).
somebody has an idea how I can unpack the upgrade.LGU file and pack again later?
can´t find tools for this

thank you for your help
 
 
28th February 2014, 06:56 PM |#2  
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voila !
Quote:
Originally Posted by nordic09

hy cracks

I have a car radio with windows ce - manufacturer lg.
I would like to customize the firmware upgrade (change images....).
somebody has an idea how I can unpack the upgrade.LGU file and pack again later?
can´t find tools for this

thank you for your help

here you go - download attachment
it's a tool to convert lgu files to directory and vice versa

to be used in command line this way:
lgu2dir <path to lgu file> <path to folder where where the contents will be unpacked>
ex: lgu2dir upgrade.lgu root
Attached Files
File Type: zip lgu2dir.zip - [Click for QR Code] (68.9 KB, 10642 views)
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28th February 2014, 08:10 PM |#3  
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Quote:
Originally Posted by lost_things

here you go - download attachment
it's a tool to convert lgu files to directory and vice versa

to be used in command line this way:
lgu2dir <path to lgu file> <path to folder where where the contents will be unpacked>
ex: lgu2dir upgrade.lgu root

thank you - you are my hero
the tool works great
you know a way to convert the files back to a lgu-file too?
28th February 2014, 08:42 PM |#4  
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Quote:
Originally Posted by nordic09

thank you - you are my hero
the tool works great
you know a way to convert the files back to a lgu-file too?

yes, see the attachment

Usage: dir2lgu <content name> <in folder> <out lgu file>
Attached Files
File Type: zip dir2lgu.zip - [Click for QR Code] (67.8 KB, 5042 views)
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28th February 2014, 10:33 PM |#5  
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thank you again lost_things
14th August 2014, 01:40 PM |#6  
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Quote:
Originally Posted by lost_things

yes, see the attachment

Usage: dir2lgu <content name> <in folder> <out lgu file>

Unfortunately dir2lgu does not work on windows xp.
Can you make a version that also works on my old operating system.

Thank you.
15th August 2014, 02:19 AM |#7  
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need working windows version this one is not win32 valid application or i miss something
thanks
7th September 2014, 06:17 AM |#8  
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changing only one file within the LGU without extracting anything is possible?
Hello guys, first thanks for the help with the file compression and decompression of the LGU, but I have a problem when compressing the file again made ​​a change in one of the firmware files and recompile the file is not accepted as update my device I believe it has something to do dir2lgu different from the original build program which makes it invalid on the device, so I wonder if there is any header possibilidede the only LGU that change a file without extract, because I need to unlock a device and only need need to change an exe within the LGU, is this possible? who developed these programs that kind of compression they use? I'm 3 months in search of a solution and nothing would be grateful for an answer that will help many people.
19th April 2015, 09:30 PM |#9  
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need a new lgu2dir for a newer version of .lgu files
Hello guys,
seems like lg made a new version of the car radio with windows ce, and the new .lgu files can not be opened by the old tools.

Thanks.
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21st April 2015, 05:23 PM |#10  
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Same here, new version of lgu, cannot be opened, file signature (or magic number if u prefer) is now ULC2.
And the archive in the lgu container is no more RAR but a Zip tipe, as usual seen inside the file with the hex editor, i tried to cut out the archive but archive won't work i suspect that's somenthing like a byte shift or other kind of "protection".
I have spotted that at address from block 18 to 1B is stored that crc in reverse way.
But i'm not found the way to recover the internal archive.

@lost_things Did you have a new version? (If u are still around here, seems that these posts are the only 2 that you are ever made )
Thank you in advice.

@viberfm
Are you working with new medianav evolution firmware too?
23rd May 2015, 11:27 PM |#11  
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New lgu tools available
Attached Files
File Type: zip lgutools_v2.zip - [Click for QR Code] (117.4 KB, 7940 views)
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