[How to] install SamyGO on Le32B653T2P

[stonedroid1]

Hi,

first my TV details:
Samsung LE32B653T2Pxx with firmware T-CHLCIPDEUC 2008.2
yes i know that this firmware is sticky and that it is hard to downgrade, but i tried it today and could downgrade it to T-CHLCIPDEUC 2007.1...
But if i tried an older one i can´t downgrade because it is not show up in the menue.....

i have tried it with T-CHLCIPDEUC 2006.0 but this version was not avaible in the update menue,
i only could switch between 2008.2 and 2007.1....

so i would like to use SamyGo......

anybody who can help me and give me some hints?

thx


p.s
excuse my english, i am german

[juzis]

...first my TV details:
Samsung LE32B653T2Pxx with firmware T-CHLCIPDEUC 2008.2
...i only could switch between 2008.2 and 2007.1....

Hi,

Sad, but you can`t downgrade it to 2006, because you have CI+ and we do not know method to write checksums of manualy flashed firmware to TV and avoid brick due authuld. So you can try use samygo apps from children (look at telnet enabler as trojan - file structure helps understand how to copy samygo to TV memory) or you can use key from www.nurisam.com.
No manuals available (yet) how to flash CI+ by hand, might we have success in future, but not now.

You can use samygo apps, but you can`t use patched firmware and no autostart at all.

[viper3k]

Not entirly true ...

I dunno if my case is somewhat different or that I discovered a new way here .. but I'll explain my situation and how I got back to 2006.0 ...

My stock setting ...
LE32B650T2PXXN (CI+)with stock firmware T-CHLCIPDEUC 2007.1. I flashed to 2008.2 a while back but I could get back to 2007.1 like you did the rollback way.. but 2006 just wouldn't show up...

What I eventually did when I got tired of trying and slowly was taking more and more risks to brick it was
1. Download the 2008.2 firmware from Samsung support website
2. download the T-CHLCIPDEUC 2006.0 PATCHED firmware from http://developbyte.com/samsung-tv-firmware/ <-- I choose the patched cuz in the end thats why we want 2006, but feel free to get the stock 2006.
3. download the SamyGO RSA-Disabler v0.01.zip from https://sourceforge.net/projects/samygo/files/B%20Series/Content%20Library%20Applications/

3. Copy the RSA disabler to the TV like you do with other apps (if you have trouble with this let me know then we'll take this step in focus)
4. Extract the downloaded 2006.0 patched firmware to the root of an USB stick (it will extract to root:\T-CHLCIPDEUC\)
5. Extract the original 2008.2 firmware. It will extract to a dir \T-CHLCIPDEUC\ (doesn't matter where). Go to \T-CHLCIPDEUC\image.
You'll find 2 files there major_version and minor_version.
6. Copy the major and minor files to the usb stick in root:\T-CHLCIPDEUC\image. You do not need to overwrite anything because the files are not included in the 2006.0 firmware.
7. Now start up your TV (be sure watchdog is turned of and RS232 is set to debug in service menu <-- let me know if you don't understand this) start the RSA disabler from the content management menu NOT the normal content menu (mine only loaded it from the management menu).
8. Then plug in the USB stick with the 2006.0 firmware. Wait for the popup. Choose software upgrade and let your TV look for updates. Now your TV wil find the 2008 firmware on stick!(this is normal) Just go ahead and upgrade.
9. Wait for the reboot.. now you've got 2006.0 PATCHED firmware on your TV ...

Sidenote .. If you go to the upgrade menu in your TV .. it WILL say you have the 2008 firmware. but if you go to the service menu it will say 2006.0 .. Also if you open up the major and minor version files in a text editor you'll see it only has a version number in it.. So you just tricked ur TV... **edit (thnx to Juzis28) open up /mtd_rwarea/Version.0 remove the content and put "SWU_T-CHLCIPDEUC_002006_I02_ES000DS000_091112" in it (without quotes ofcourse ). save the file and your TV will now also show that it's the 2006 firmware

Also you can just rollback to 2007.1 if you like as well..

Now just enable telnet one more time manually
make a SamyGO.sh and mount.sh put them in /mtd_rwarea/ and you're TV will autostart them on startup ...

Not sure what you wanna do with the TV but be sure to put

Code: Select all

# Enable Telnetd
mount -t devpts devpts /dev/pts
telnetd
sleep 20

in the SamyGO.sh file.. This will autostart telnet.. also SamyGO.sh.. note the uppercases, case sensitive.
And you must give this and the mount.sh file the right execute attributes so do

Code: Select all

chmod +x SamyGO.sh mount.sh

after you've created it.

Ok well.. hope this works for you.. Maybe the steps look a little like babysteps .. but my opinion is that with firmware flashing you'd rather have babysteps then being unsure of something and end up winging it ..

Let me know if it works..
You do have a slightly other TV model than I but as far as I know 653 and 650 are internally the same.. Plus both TV's are CI+ that's important.

Oh one more thing .. I myself was tired of waiting for a free slot on the site(developbytes step2), so started looking for other places to get this file... Eventually I ended up downloading it in a torrent from http://loraart.ru/bt/viewtopic.php?t=71 (its russian and you need to register with the forum first but with google translate in chrome thats a piece of cake ..) I think this file is exactly the same as on the site above.. But just for the record.. I can confirm the one from loraart.ru works.. the otherone from developbytes is probably the same but I didn't try it myself.

To Juzis28:
Am not really a veteran in Samygo or anything.. But did I bypass the authuld here or is my case just somewhat different here?? If not .. Then we should put this in the wiki pages right?

[juzis]

Hey, we need it to have on wiki. You`ve got permissions.
You can change firmware ID by changing version files on /mtd_rwarea/

It is good that we still have volunteers who make such inventions

[viper3k]

Well I figured the risks were low since I only tempered with versioning.. So if the firmware file itself was good it should work..

Changing the version.0 file does that come with any risks or is does it just show whatever is in it in the upgrade menu??
Also.. other then showing up the wrong firmware version should it bring any trouble just leaving the tv to believe it's 2008??

question out of interest.. I read somewhere on the form T-CHLIPDEUC was compatible with T-CHL7DEUC does that only go for Apps or also for firmware ?? My logic says the firmware will brick it because T-CHL7DEUC is non CI+ .. but I'm not sure on it..

Then followup on that .. is there any real reason to wanna go back to 2004 if you've got 2006?? or does 2006 offer as much options of tempering with apps as 2004?

Thnx.. I'll get on the wiki page later on and PM you to bless it ..

Oh one more thing ... Since patching your own firmware comes with extra risks and the sites that do have prepatched firmwares are all russian and have slow downloadslots... Would it be illegal to put the prepatched firmwares on sourceforge or a direct link on wiki? If not .. then that might be an idea..

[juzis]

Changing Version.* file affects firmware version on firmware upgrade menu.

T-CHL7DEUC isn`t compatible with CIP!!! 200% TV brick.

If you happy with 2006, why do you need to downgrade. No extra features you get.

Apps are common for CIP and CI B650 (with some exceptions)

We can`t have patched firmwares here on sourceforge, because it have not free code on it (samsungs closed source).
Why are you wondering about russian sites - they can have all what they want

[viper3k]

Just for the finishing touch info ..
I'm not really familiar with what the RSA disable really does ..

In the way I flashed from 2007.1 to 2006.0 is it still nececairy to load the RSA disabler ?? since you're already tricking your TV in thinking your flashing to 2008.2 ?

[juzis]

You always need use RSA disabler when flash patched firmware. It dissables security check by exeDSP and allows flash it by not trigering authuld. Checksums are flashed to tv properly.

[stonedroid1]

Big Big Thx for that great manual...


but i have a problem on step3 "copy RSA Disabler to tv memory" because i can´t copy it, my TV write "false UDN......" and i can´t start it from the USB stick without copy to TV....
so what i must do?
watchdog is off and RS232 set to debug in service menue.....

and another questions...

why i should change the version number if i use just minor and major files from the new 2008.2 and put it into the old patched 2006
the patched one tells me in version_info the correct version....
or where to find /mtd_rwarea/


hopefully u guys can help me another time

and big thx and greetz from germany

[viper3k]

Hehe greetz from your neighbors in holland

Ok about step 3 .. that's correct .. you can't JUST upload stuff to your TV .. you need a little workaround for that as well..
Go to https://sourceforge.net/projects/samygo/files/B%20Series/Content%20Library%20Applications/
and download SamyGO Telnet Enabler Trojan v0.01.zip

It's not a trojan virus .. it's a trojan method to get stuff on your TV .. Unpack it .. and put the RSA-disabler folder into the telnet-enabler folder. Now put the telnet-enabler folder on the USB stick .. when you open up content management now and go to children you only see the telnet enabler ... copy this to your TV (this should just work fine) and when you look now you'll see that in the childrens folder on your TV is now Telnet enabler , telnet enabler trojan and RSA-disabler. Use the telnet enabler later on to start the telnet server for the first time.

You can go ahead and startup the RSA disabler now.

About the version number..
It's not nececairy to change it .. but your TV will say that you have 2008 (in reality thats 2006) .. which is not a problem but if you would like to show that up correctly you can aftwards telnet to ur TV go to the /mtd_rwarea/ and change the Version.0 file like stated above to let your TV show up 2006 as well.. (btw when you enter the service menu after flashing it WILL say 2006, just the upgrade menu on the tv will state it wrong)

btw if your not really known with linux .. open up a manual page about Vi before you start changing files..
It's an ancient standard text editor on linux but a bitch to use if you are not known with it. and you will be needing to edit some files.

Do you understand everything about the flashing now?? The telnet stuff we'd better handle when the new firmware is on..