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How To Downgrade webOS TV Firmware Tutorial

SIMON
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SIMON

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LGDTVUPDATER  
 
1. Download LgDTVUpDater [ 

link hidden, please login to view
 |  ] Updated 19 OCT 2015
2. Unrar and put LgDTVUpDater folder in C:\
3. Open C:\LgDTVUpDater\dns\AcrylicHosts.txt
4. Change 192.168.0.11 with your 
5. Save and exit
6. Go back to C:\LgDTVUpDater folder
7. Run startDNS.bat and don´t close it
8. Run startHTTP.bat and don´t close it
9. Go to TV Menu > Network Settings > Ethernet/WiFi > Edit > Uncheck Set Automatically > Change DNS IP to your local IP address > Connect
10. Go to General > About This TV > Check For Updates
11. Accept downgrade to the first firmware TV
12. Restart TV

13. Back to TV Menu > Network Settings > Ethernet/WiFi > Edit > Check Set Automatically
14. Go to General > About This TV > Check For Updates and follow TV instructions OR download available Software_File dedicated for your TV, unrar and put *.epk file in LG_DTV folder at USB stick
15. Mount USB stick to USB port at your TV then accept upgrade when message prompt on the screen
16. Restart TV and follow TV instructions

 
For best performances go to TV Menu > General > Reset to Initial Settings
 
 
Voila!  ;)
 
 
 
NSU EMU BY SMX
 
If your attempt to downgrade your TV with LgDTVUpDater for some reason was not successful, you can try to use tool prepared by SMX.
Everything you need - NSU Emu by SMX and how to use it - you can found .

 

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SIMON
SIMON

LGDTVUPDATER     1. Download LgDTVUpDater [  link hidden, please login to view |  ] Updated 19 OCT 2015 2. Unrar and put LgDTVUpDater folder in C:\ 3. Open C:\LgDTVUpDater\dns\AcrylicHosts.txt 4. Chan

davidisom
davidisom

1. Worked like a dream for me downgraded to 3.23.13 2. Rebboted now upgrading via manual update. 3. Upgraded to 4.30.16 4. Reboot and tv has found update via automatic update which is in progr

smx
smx

Hello everyone. I'm smx, the author of the downgrade tool on  link hidden, please login to view. I noticed this topic after a guy mentioned it in the (mostly silent) openlgtv IRC channel.   To repl

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SIMON Collaborator

SIMON

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This is missing something because no. 11 does nothing.

 

After Check For Updates from #10 you must accept first firmware TV installation by clicking Install at message prompt on the screen - this is #11.

SIMON Collaborator

SIMON

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I checked it one more time on my TV before creating this topic.

Please make sure that you everything did correctly.

 

BTW What is your TV model, webOS version and software?

davidisom Rookie

davidisom

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1. Worked like a dream for me downgraded to 3.23.13

2. Rebboted now upgrading via manual update.

3. Upgraded to 4.30.16

4. Reboot and tv has found update via automatic update which is in progress

5. Udpate 5.00.04 installed

Straight forward and worked without issue.

Thank you Simon.

David Isom

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turbozob Apprentice

turbozob

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Check you TV model in LgDTVUpDater\htdocs\in_dump.txt 

 
<MODEL_NM>HE_DTV_WT1H_AFAAABAA</MODEL_NM>
 
then find the model tv file in LgDTVUpDater\TV series and copy it to LgDTVUpDater\htdocs\
SIMON Collaborator

SIMON

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Check you TV model in LgDTVUpDater\htdocs\in_dump.txt 

 
<MODEL_NM>HE_DTV_WT1H_AFAAABAA</MODEL_NM>
 
then find the model tv file in LgDTVUpDater\TV series and copy it to LgDTVUpDater\htdocs\

 

 

Are you sure? It's not working like that...

turbozob Apprentice

turbozob

Posted
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Yes. The TV searches for that file and then checks its content. Try it yourself, erase dump file, start batch files, check for update on tv and look into dump file for tv model. Delete the file which has the same name of your tv model and try to update, it should not work.

davidisom Rookie

davidisom

Posted
Posted

1. Worked like a dream for me downgraded to 3.23.13

2. Rebboted now upgrading via manual update.

3. Upgraded to 4.30.16

4. Reboot and tv has found update via automatic update which is in progress

5. Udpate 5.00.04 installed

Straight forward and worked without issue.

Thank you Simon.

David Isom

Shóuld have said after step,one dns was put back to normal and pc software stopped.

The manual and subesquent updates came via the web......

Deihmos01 Apprentice

Deihmos01

Posted
Posted

Updated for higher TV models, tested, uploaded. ;)

This didn't work for me. This is what the dummy file has.

<REQUEST>

<PRODUCT_NM>webOS</PRODUCT_NM>

<MODEL_NM>HE_DTV_WT1H_AFAAATAA</MODEL_NM>

<SW_TYPE>FIRMWARE</SW_TYPE>

<MAJOR_VER>05</MAJOR_VER>

<MINOR_VER>00.04</MINOR_VER>

<COUNTRY>US2</COUNTRY>

<DEVICE_ID</DEVICE_ID>

<AUTH_FLAG>N</AUTH_FLAG>

<IGNORE_DISABLE>N</IGNORE_DISABLE>

<ECO_INFO>01</ECO_INFO>

<CONFIG_KEY>00</CONFIG_KEY>

<LANGUAGE_CODE>en-US</LANGUAGE_CODE>

</REQUEST>

SIMON Collaborator

SIMON

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Thank you SIMON, you saved my 49UB850V, i used your tut to downgrade from 5.00.04, and worked like a charme

 

Nice to know that it works for others, though regretting that not for everyone will. 

Maybe next update will be better for your TV. Meanwhile, thank you for your opinion and I wish you to make it happen.  ;)

SIMON Collaborator

SIMON

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Hi santosh, In Poland it is now ~ 3H00AM and I have to get some rest, but when I come back to life I will prepare an update to include TV models that are not available for now.  ;)

Deihmos01 Apprentice

Deihmos01

Posted
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This didn't work for me. This is what the dummy file has.

<REQUEST>

<PRODUCT_NM>webOS</PRODUCT_NM>

<MODEL_NM>HE_DTV_WT1H_AFAAATAA</MODEL_NM>

<SW_TYPE>FIRMWARE</SW_TYPE>

<MAJOR_VER>05</MAJOR_VER>

<MINOR_VER>00.04</MINOR_VER>

<COUNTRY>US2</COUNTRY>

<DEVICE_ID</DEVICE_ID>

<AUTH_FLAG>N</AUTH_FLAG>

<IGNORE_DISABLE>N</IGNORE_DISABLE>

<ECO_INFO>01</ECO_INFO>

<CONFIG_KEY>00</CONFIG_KEY>

<LANGUAGE_CODE>en-US</LANGUAGE_CODE>

</REQUEST>

Is there any way I can get this work on my model ? I have tried so many things but it always says update not found.

vs2 Apprentice

vs2

Posted
Posted

Hi Simon.

LG New Zealand put an online update to 05.00.04 for my 84UB980-TA but it was a mistake according to them and now the EPG is not working. I tried your method but after accepting the update nothing happened. Could you please add the **UB980 series to the list so I can roll back to 04.62.50.

 

Thanks.

man0072 Newbie

man0072

Posted
Posted

Unfortunately this method is not working for me either. I'm getting tons of "Out of memory" errors and everything is crashing after my TV did an auto update to 05.00.04. Can 70LB7100-UC model get added to this tool? Below is the infor from my TV. Appreciate the hard work!

 

70LB7100-UC
Software Version 05.00.04
webOS TV Version 1.4.0-2504 (afro-ashley)

<REQUEST>
<PRODUCT_NM>webOS</PRODUCT_NM>
<MODEL_NM>HE_DTV_WT1M_AFAAATAA</MODEL_NM>
<SW_TYPE>FIRMWARE</SW_TYPE>
<MAJOR_VER>05</MAJOR_VER>
<MINOR_VER>00.04</MINOR_VER>
<COUNTRY>US2</COUNTRY>
<DEVICE_ID>XX:XX:XX:XX:XX:XX</DEVICE_ID>
<AUTH_FLAG>N</AUTH_FLAG>
<IGNORE_DISABLE>N</IGNORE_DISABLE>
<ECO_INFO>01</ECO_INFO>
<CONFIG_KEY>00</CONFIG_KEY>
<LANGUAGE_CODE>en-US</LANGUAGE_CODE>
</REQUEST>
caiomatrix Newbie

caiomatrix

Posted
Posted

I tried everything to downgrade, and still doesn't work. I have the LB6500, the brazilian equivalent to US LB6300. I tried the updater from Russian and Brazilian foruns, tried to edit the files myself, I have downloaded the last working firmware (04.65.05), but it never finds the update on the TV.

 

Is it normal to the startHTTP to close after 30s? I'm getting this error:

 

9mEYw3R.png

 

 

I'm also getting  lgtvonline.lge.com  +  BR.lgtvsdp.com  + BR.info.lgsmartad.com from the from the startDNS, which I added to the AcrylicHosts.

 

 

I can use my TV with all the memory error since 05.00.04 update. :(

 

UPDATE: nevermind, I'm really really stupid! I was extracting the files to the desktop. I never thought it had to be on C:.

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