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How To Downgrade webOS TV Firmware Tutorial

SIMON
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SIMON Collaborator

SIMON

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Hello again guys. First, thank you for your thanks, it's very motivating. ;) Nice to see satisfied users, now we have to do something for the others. I could not do anything earlier, because I had problems with my network, but finally I updated LgDTVupdater and now you can download it and try to downgrade your firmware. I hope it goes well now. If not, we will try to do it individually. So let's try and please let me know about successes. Good luck.

 
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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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Any way you can add HE_DTV_WT1M_AFAAATAA? Thanks in advance.

 

You tried to downgrade or just looking for HE_DTV_WT1M_AFAAATAA? Please try and let me know.

SIMON Collaborator

SIMON

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No success for me. I don't see HE_DTV_WT1H_AFAAATAA in the list

 

Again - You tried to downgrade or just looking for HE_DTV_WT1H_AFAAATAA? I need to know you tried to do downgrade.

man0072 Newbie

man0072

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It actually worked, woohoo! I successfully downgraded to 3.23.32. Now how do I upgrade to 04.41.39? I created a USB drive with LG_DTV folder and the starfish-atsc-secured-m14tv-32.arches-3239-04.41.39-prodkey_usb_V3_SECURED.epk file in it. But when I insert in the TV, only SmartShare message pops up, no update. Thanks for any more info!

SIMON Collaborator

SIMON

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It says No update was found.

 

Okay still working on it.

 

 

It actually worked, woohoo! I successfully downgraded to 3.23.32. Now how do I upgrade to 04.41.39? I created a USB drive with LG_DTV folder and the starfish-atsc-secured-m14tv-32.arches-3239-04.41.39-prodkey_usb_V3_SECURED.epk file in it. But when I insert in the TV, only SmartShare message pops up, no update. Thanks for any more info!

 

Good. Try to update by OTA, them do it with USB.

man0072 Newbie

man0072

Posted
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OTA says "No update found". USB does not pop up to update, just SmartShare opens. I tried all 3 USB ports. Any way to set your updater to point to 04.41.39 instead of 03.23.24? Thanks!

SIMON Collaborator

SIMON

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I have the file for the first software released for my TV. It is version 3.23.06. I use to be able to downgrade using power only mode but they disabled it with this new software

 

I do not understand. Where you have this file and what is its name?

vs2 Apprentice

vs2

Posted
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Just try and let us know. This knowledge also we need. I have only one TV model, you have to help me somehow.

I did try, see post #38. Everything works but when it says its updating nothing happens. Thanks.

 

Maybe the problem is with NZ ISP? Should I try using a VPN?

SIMON Collaborator

SIMON

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Here is the

link hidden, please login to view

 

Okay, thanks, this is firmware file. I thought that you mean another file.

 

 

I did try, see post #38. Everything works but when it says its updating nothing happens. Thanks.

 

Maybe the problem is with NZ ISP? Should I try using a VPN?

 

Oh, sorry, you right. It is not ISP problem. I think it's your TV series 9xxx problem. 

vs2 Apprentice

vs2

Posted
Posted

Oh, sorry, you right. It is not ISP problem. I think it's your TV series 9xxx problem. 

 

Thanks for your efforts in trying to make everyone happy. Hopefully there will be solution for the 9xxx series soon.

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man0072 Newbie

man0072

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I read trough your script and I see that it forces HE_DTV_WT1M_AFAAATAA model to install firmware for HE_DTV_NC4M_AFAAABAA instead. Would that create any issues for getting back to stock firmware/OTA updates?

 

I am currently stuck on 3.23. and CEC is not working for my STB or any of my other components. I really need to get back on 04.41.39, which was the last version for my 70LB7100-UC TV before 5.00.04. I am unable to update via USB as I belive the firmware (starfish-atsc-secured-m14tv-32.arches-3239-04.41.39-prodkey_usb_V3_SECURED.epk) doesn't work because my TV thinks that it is HE_DTV_NC4M_AFAAABAA now. Nothing happens when I insert the USB drive and OTA does not find any updates either. How do I make my TV become the correct model HE_DTV_WT1M_AFAAATAA again? Or which 04.41.39 firmware do I need to download/install that is compatible?

 

Thanks for your help!

man0072 Newbie

man0072

Posted
Posted

To answer my own questions :), I was able to create an answer file and point the TV to a file that was server locally on my computer. It successfully upgraded to 04.41.39, wchich I got from the LG support site for my TV. Then I did an OTA update to 04.45.x and everything is back to stock. The model is HE_DTV_WT1M_AFAAATAA again, which is the right one. Thanks for the great tool Simon!! It makes upgrades and downgrades a breeze.

derharne Newbie

derharne

Posted
Posted

Hi thanks for the great work on this. 

When i tried to update my 50LB650 TV using my desktop PC it wouldn't work, when I tried using my laptop it worked great. I think it was because the desktop PC has Windows 10 and the laptop windows 7.

Thanks again

vs2 Apprentice

vs2

Posted
Posted

Hi thanks for the great work on this. 

When i tried to update my 50LB650 TV using my desktop PC it wouldn't work, when I tried using my laptop it worked great. I think it was because the desktop PC has Windows 10 and the laptop windows 7.

Thanks again

 

I tried both win 7 and 10 and same thing happens, after accepting update nothing happens, it just says 'updating'.

 

Q. How long after accepting update do you wait?..and when do you restart the TV?

vs2 Apprentice

vs2

Posted
Posted

Just noticed in the 'tv series' folder in the updater all the files show 'AU' Australia but no 'NZ' New Zealand.

I'm wondering if I changed the TV location to Australia and then tried?

marioasavu10 Newbie

marioasavu10

Posted
Posted

Simon, I try to downgrade from 05.00.04 to 04.55.40 but nothing happened in step "11".

No downgrade message!!!

I used HE_DTV_WT1H_AFAAABAA online and local version.

 

Model : LG55UC970.

It's  other way to downgrade the TV?

My issues with this update is restart of TV due to '' free memory app......"

Thank you.

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