LG LCD TV 42DL550 Fix

Zedic

How to repair an LG LCD TV main board.

 

This is a simple method to fix a TV or other electronic device with bad solder connections.  The TV I fixed is an LG 42″ LCD TV Model 42LD550-UB.CUSWLHO.

Symptoms

The TV would power on and the LG Logo screen with the clock would appear.  It would freeze on the logo screen.  It was stuck there and would not boot any further.  The none of the buttons would work.  It was totally stuck.

First I tried unplugging it for about 15 min to reset everything, but that did not make a difference.  Note:  It’s always good to try this first on any electronic device.  Also if the device has any kind of factory reset button, always try that as well before taking it apart.

I searched around online and found other people reporting issues with this TV.  HDMI ports not working, no inputs working, Lines on the screen, fuzzy video, etc…  It seems many different makes and models are affected.

I removed the board and I did not see any physical damage, no components looked fried or burnt, no capacitors looked bad, and all the connectors looked to good.  This lead me to believe the main control board Model EBT60955753 LG MAIN (3642-1052-0150) could have one or more bad solder joints.

This TVs was purchased in 2010 and out of warranty.  A new board was hard to find, and too expensive.  I decided to try this simple repair myself because I had nothing to lose!

Summary

To fix it, I baked the main board in a electric oven for about 10 minutes at around 385 °F and It worked!

Explanation

Why did this work? After heating and cooling for years, tiny cracks can form in the solder connections.  Heating the board to 385° F (above the solder melting point) caused the solder to melt and these cracks flow back together.

Believe it or not, this trick works on more than just this TV.  This can fix a long list of other electronics.  It’s not uncommon for manufactures to under cool their components, and/or ship electronics with bad solder.  Poor ventilation, bad fans, small heat sinks, dust, stress, and other factors can also cause over heating or cracked solder points.  Even a very tiny crack that you can not see can cause a bad connection.

Warning:  Attempt at your own risk!  Safety First! Always wear protective gear when working on electronics.  Safety Glasses, Gloves, etc…  Remove Electricity from the device (unplug) to Avoid Shock!

 

Again, attempt at your own risk!  This will void your warranty, and possibly damage the board.  I have only tested this on an LG 42DL550!  Other readers have had success on different models so search through the comments.  I would only try this if the TV is unusable and you have nothing to lose!

Let’s Do This!  Step-By-Step DIY Fix:

 

– Remove the board from the TV

LG MainBoard EBT60955753 (3642-1052-0150)

LG LED TV Control Board EBT60955753 (3642-1052-0150)

  • Step 1.  Call LG and complain.  Everyone complaining to LG might make them understand how unhappy people are, and they’ll see this is a known issue!  Maybe if you play your card right, they will admit this is a fault with their product and send you a replacement.
  • Step 2.  UNPLUG THE TV before you touch it!  Electric shock can cause death!
  • Lay the TV down on its face. (Put it on a blanket to be careful not to scratch the LCD)
  • Remove the stand from the TV. (remove the four long screws at bottom and the stand slides out)
  • Remove the back cover from the TV.  (don’t forget the screw near the power plug, and the one in the middle of the input jacks.)
  • Take pictures of the Board from all angles.  Make sure to get good ones of all the connections.  You can use these pictures later to make sure you reinstall it correctly.
  • Remove all the connections. (Be gentle, they should come off easy, if you are doing it correctly)
    • How to disconnect them isn’t obvious to the inexperienced.  Use the picture above for reference. (Click on the picture to enlarge it!)
    • On the upper right there are two ribbon cables. To disconnect these, gently lift the thin black plastic strip on the connector (it flips up), then you can pull the ribbon cables out.
    • On the lower right there’s a wide header block with gray wires. Squeeze the sides (opposite ends) of the connector to release it and pull up.
    • On the upper left are two other connectors. In the center of these is a small plastic part. Press down gently on the edge of that (the edge near the wires), causing the opposite edge to lift a bit to unlatch. While pressing, pull gently in the direction of the wires, away from the board.
  • Once all the wires are disconnected remove the six (6) screws holding the main board to the frame.
  • Remove the black plastic face plate from the side input jacks. (No screws, it’s held on by it’s plastic clips).

– Bake The Board

  • Now we are going to bake it in a conventional electric oven.  (Do NOT use a microwave, gas oven, open flames, Air Forced Heat, or any other type of heat!)
  • Why not use a heat gun?  A heat gun is forced air like a hair dryer.  As soon as the solder melts, the air will blow the components out of place, or even go flying off the board.
  • Why not use a gas oven?  Open flames can be dangerous in this situation.
  • Why not use a microwave?  Never put metal in a microwave!  Very bad things can happen.
  • Preheat the oven to 385 °F (196 °C)
    • The correct Temperature is IMPORTANT.  If you don’t trust the temperature setting on your oven, or if your oven does not have a temperature setting, then get a baking thermometer and test your oven!
    • 385 °F is working for most people, but there are different kinds of solder.  Altitude and humidity might also play a factor.  Most solder melts between 360 and 419 Degrees Fahrenheit or 180 – 215 Degrees Celsius.
    • Solder is a mixture of Tin and Lead.
      50 Tin/50 Lead: melts between 183–215 °C (361–419 °F)
      60 Tin/40 Lead: melts between 183–190 °C (361–374 °F)
    • NOTE:  These temperatures might sound scary, but the ignition temperature of paper is around 451 °F so these components should not be damaged at these temps in an electric oven.  Again, this is why we only us an electric oven.  No open flames!
    • See https://en.wikipedia.org/?title=Solder for more details about Solder.
  • Place the board face up on something nonmetallic like a piece of cardboard.  A pizza round or similar works well. (Do not put it on anything metal because the solder will stick to it.)
  • Place it on the center rack of the oven.
  • It will smell funky when cooking so you might want to open a window and/or turn on a fan!
  • Let it cook for about 10 min.
  • Turn the oven off and let it cool.  (Be careful!  It’s hot and will burn you!  Use oven mitts!)
    • Do not to bump or disturb it while it is cooling!
    • I would not move it until its below 300 °F, so you don’t disturb any components!
    • Just turn the oven off and leave the board in it with the door open until it’s cooled off a bit.
    • If you take it out of the oven while it is still hot, remove the board very carefully, let it cool at least 30 min before you touch it.

– Install and Test

  • Install the main board in the reverse order that you removed it. (Refer to your pictures)
    • Make sure you get all the cables in the correct location.
    • Double check each cable to make sure it’s connected correctly.
    • Check your pictures to make sure you have everything correct.
    • You might want to leave the back off until you test it in case it doesn’t work, and you need to bake it again. Just do NOT touch anything back there with it plugged in!  BE SAFE!
  • Turn on the TV and see if it works.  (Note:  Wait at least 10 Seconds after turning it on because it seems to take a long time for this particular TV come on.)
  • If it does not work:
    • Try cooking it again for 15 min.
    • 10 min. worked for me on the first try but results my vary…
    • Try a higher temperature 183 – 215 °C (361 – 419 °F) as noted above.
    • One reader noted he went all the way up to 482 °F (250 °C ) although I highly recommend staying below 425 °F.  I’m guessing his oven settings are off.
    • Another reader said he put a weight on the LVDS chip while baking and that worked.
    • Read through the comments, there’s a lot of good info in there.

Please comment to let everyone know how it went for you!  Include the Make and Model of your TV / electronic device to help others can find this post!

Warning:  Attempt at your own risk!  Safety First! Always wear protective gear when working on electronics.  Safety Glasses, Gloves, etc…  Remove Electricity from the device (unplug) to Avoid Shock!

 

Again, attempt at your own risk!  This will void your warranty, and possibly damage the board.  I have only tested this on an LG 42DL550!  Other readers have had success on different models so search through the comments.  I would only try this if the TV is unusable and you have nothing to lose!

 

Keywords:  Samsung, Sony, Vizio, Sharp, Sony, Insigina, Toshiba, JVC, Philips, Magnavox, Sanyo,  Fix, Electronics Repair, Motherboard, Mainboard, ControlBoard, CPU, ReSolder,

481 thoughts on “LG LCD TV 42DL550 Fix”

  1. It worked! But for all of you beginners out there I made a stupid mistake you shouldn’t need to repeat. On my Lg55ld650 there is a plastic piece for the connectors where it is written what each input is for. I didn’t figure out that I should have taken that part off the board before it was too late. It melted. But it is behind the television and I much rather have a television that works. Thank you so much

    1. And also.. my problem was the hdmi inputs. It said that it found the cable but still said no connection on the screen. Furthermore.. I had problems with my tv going black every second minute on english speaking channels. I thought that was just my provider and bad cables in the house, but that issue was fixed too as an added bonus 🙂

    2. And also.. You already wrote about the plastic thing. My stupid mistake.. my problem was the hdmi inputs. It said that it found the cable but still said no connection on the screen. Furthermore.. I had problems with my tv going black every second minute on english speaking channels. I thought that was just my provider and bad cables in the house, but that issue was fixed too as an added bonus 🙂

  2. My 55″ LG LCD froze at the splash/clock screen starting Saturday afternoon. Found this post with a little googling, but initially thought: “bake my main board in the oven? No fu*%ing way.” After more searching and the realization that having to buy a new T.V. was a real possibility, I decided I had nothing to lose.

    Followed the instructions as listed. If you’ve ever messed the with guts of a PC, it’s not a difficult job. All in all it may have taken a little more than an hour. But, after letting it cool down and reassembling, I was pleased to see my T.V. boot as normal.

    A few pictures that others may find helpful: http://imgur.com/a/xAIu6

    Thank you for sharing this tip. So glad to have fixed an otherwise fine T.V. rather than dumping the money to buy a replacement.

  5. This method just worked for our 47LE5400! Purchased the TV mid-2010 and over this past weekend the HDMI ports stopped working. These instructions were linked to from another forum and I am so thankful!

    Like someone else said, the coax and side cover on ours had metal tabs, not plastic so it took a bit of careful prying to bend those but that was the most difficult part. Thank you thank you thank you!

  6. I apologize if this is a dumb question but, do your put the board on the cardboard with the components facing down with the back of the board with just the solder facing up or do you put the board on the cardboard with the components facing up and the back of the board with solder dots facing down touching the cardboard (as it looks in your picture of the board)? Thank you for your advice. I have the board off and ready to go in the oven.

      1. Tried baking my lg42 ld550 for 10 minutes at 385f. It didn’t work… My picture starts to freeze after 2 minutes and lines form down the picture. Going to try it for 15 to see if it helps.

  7. Zedic, you are a freaking legend!

    After hours of trying to figure out why our PS4 stopped working we finally worked out that the HDMI on the TV was stuffed. We figured…it was just as expensive to try to get it repaired as it was to buy a new TV but you have saved us! Hooray!

    The instructions were very clear and easy to follow. We baked it at 200C in a fan forced gas oven for 10 minutes, let it cool inside the oven with the door open for about an hour and then put it back together. Here’s to hoping that this fix lasts! Thanks!!

    For reference: the TV we had was a 42 inch LG DL560

  9. Just wanted to add my experience with my LG 60PX950. The plasma TV was working fine until one day it suddenly lost HDMI connectivity. Sometimes it would work by switching between the different HDMI inputs, but after a few days none of the HDMI inputs were functional, even though the OTA tuner and component inputs worked. Thanks to Google, I found your web page and baked the control board at 390 degrees for 15 minutes. Voila, my TV is working normally again! Thank you for posting this information and maintaining your web page. Since they aren’t making plasma TVs any more, I’d like to keep mine working as long as possible, and I’m thrilled that your solution worked and was so inexpensive! Thanks again, Zedic!

  12. Wife ready to buy new TV. I tell her to let me try to use internet to figure out problem( no HDMI). Found it was main board. Looked up prices, just buy the TV she says! I go to ZEDIC and find “baking the board”. What to lose, worked like a charm. Wife has money to burn, kids think I am a magician , house smells, but Roku is back and I am happy. Thanks

  14. Hi everyone! I tried the solution above on my 42LD from 2010 about three months ago and it worked like a charm.

    Came home from work this weekend and sadly, same issue. LG claims this is not their fault and a new board would set me back about €400/$500, which is not in the budget. So I am going to try all of it again this weekend, hope it works for a second run.

    Any suggestions on where to get a new main board, if the oven trick doesn’t work this time around?

    1. Maaike, sorry to hear the problem is back. 🙁 Before you bake it again I would try unplugging it for about 10 – 15 min, then powering it back on. If that doesn’t work, try backing it again and let us know how it goes.

      As far as getting a new board, I’m guessing you can order one from LG, eBay, or just start searching the internet. Good Luck!

      As far as finding a new board, you can try LG

  15. About a month ago, my 42″ LG 42LD550 HDMI input stopped working. Every time I hooked up my PS4 to all 4 of my HDMI ports, it was getting no connection. All I got was the LG logo box floating on the screen. The only thing that was working was the Web on the tv. My children watches Netflix on the tv and I also noticed that the screen will get dark or dim. My wife and I decided that were gonna purchase a new tv which was gonna cost us a substantial amount of money. So I decided to go online to figure out a way to fix it without calling a service guy or take it some place where it’s gonna cost us a lot to replace the board. I stumbled upon this web site, and you gave directions on how to bake the board. I seriously thought that was a dangerous way to fix it until I read the whole instructions on what to do. While I uninstalled the board, I pre-heated my oven to 380. Once I took out the board, I put it in the oven for 10 minutes like it was instructed. After 10 minutes in the oven, I took the board out and let it sit for half an hour. After that, I reinstalled the board, hooked everything up and BAM…it worked! I felt so accomplished and also relieved that I don’t have to buy a new tv. Thank you so much for instructions on how to fix the board without having to replace it. I’m very great full for your technical knowledge.

  16. Yesterday my HDMI ports stopped working on my LE8500 from 2010. Tried everything to get these working again but no succes. Search the internet and came at your solution to bake the controller board. I followed carefully the instructions and baked the board fr 10 minutes at 200 degrees Celcius in the oven. Then took out the board and let it cool for more then 30 minutes. Then placed it back with all the connectors connected the right way .
    After hooking on the hdmi cables i tried the tv again. The leds on the tv turned on but unfortunately the screen stays black. So now even watching tv isnt possible anymore. It was arisk to bake the board but in my case this trick didnot work.
    It was worth trying anyway.

    1. Sorry to hear you had trouble. The board might not be bad, it could just be a bad connection. Some people have found they connected the board wrong or the connections were not seated correctly. I would double check all the connections to make sure they are in the correct location, and make sure they are tight.

  17. I have a 55″ LG TV (Model#55LE5400-UC) . I lost my AV first and after a month lost my HDMI connections. I used your recommendation and baked the main board for 10 minutes at 385. I let it cool down and connected it back. First try I got a blue line on my screen. I checked all connections and tried it again and this time it worked like a charm. Perfect picture. Hard to believe!
    Thank you so much.

  19. Thank you so much for this post!
    After all my HDMI-ports suddenly failed to work the only option I thought I had was buying a new motherboard. Which implies indirectly in buying a new TV (considering the costs of a motherboard).
    After reading this post I weighted my options and concluded that my TV couldn’t get more broken than it already was. OK, it would speed up the “buy a new television” proces if this trick would also damage my VGA-port and antenna (which were still working).
    The bold decision to disassemble, bake, cool down and assemble resulted in an hour being wondering what I was doing, but it was worth it: all my HDMI-ports on my LG 47LE7300-INFINIA are working again!! (and everything else is also still working ;))

    If you have no options left, this is certainly worth a try!

  20. Just wanted to add my thanks for sharing your instructions!

    I have never repaired an appliance, or built or fixed anything electronic before, but was able to follow your instructions and fix my LG 47″ LE5400 TV by myself. I felt such a sense of accomplishment (and relief!) when I turned the TV back on and it worked!

    I also appreciated all of the comments as they not only gave me confidence, but let me know that the board would smell while cooking!

    The only trouble I had was getting the plastic cover off the board. If there is a trick to it, you may want to add it. I was unable to get it to snap off, but finally managed to pry it off using a screwdriver. The whole time I was worried I would damage the board, but only ended up damaging the case. It would not fit back on, but since it is not really needed it was no big deal.

    Also, instead of putting my TV on the carpet, I used my ottoman, which is only a few inches lower than my TV stand. I am a small, not so strong, person, so this was a big help. I may have been able to set the TV on the floor, but it would have been a struggle to pick it back up.

    Thanks again!

  21. Just tried this for my LG 47LV5500 and it WORKED!!!

    The face plate on the input jacks for that model is metal, not plastic. It looked tricky to remove from the main board, and I thought it would have been OK to keep it on since it’s metal, but I didn’t want to risk it so I figured out how to take it off. Wasn’t so bad with patience and needle nose pliers.

    Thanks for posting this great article!

  22. Great help and a big thank you. I had similar problems with my LG 32LD450 TV which is approximately 4 years old. I had a tv repair guy call around who confirmed that the aerial feed was perfect and that the problem was with the tv. He advised that it wasn’t worth fixing and that it would be best to buy a new tv. Luckily I came across your site and I baked the main board as per your instructions. I danced around my living room in delight when it worked. Thank you so much as you have saved me a lot of money. My kids also think that I am great for fixing the tv !

  23. YEAH!
    thanks for sharing your useful instructions!
    Follow your instructions I fix my LG 47″ LE5400 TV by myself.
    Tahnk you so much!!!
    I only registor to thank you for your help

    Thanks from Spain!!!!!!

  24. Hey!! I have an LG 32LD450 and all my HDMI/AV ports stopped working. Tried this and now it is up and running as usual.

    I’m not experienced at doing this kind of this but the instructions were really easy to follow. I preheated my oven for about 20mins at 190(ish) degrees Celsius and baked the board for 10mins. Took it out of the oven and let it cool.

    Thanks so much for this- me and my partner thought we were going to be stuck watching terrestrial TV!

  25. I baked my board at 200 deg C for 10 min , left 1 hour to cool down but still no picture on HDMI , only sound .I’m concerned about the 4 Aluminium electrolytic capacitors on the board (rating 85 deg) – they looked “swollen” afterwards – I desoldered some and tested them -they tested fine.Should I rebake the board ?

  26. Had issues with fuzzy image on my 32LG53FR. Came across this when I was searching for a DIY fix. So in went the main board. 10 min @190 degrees. Ald yes – it got fixed! But the happiness was short lived. It worked for about 30 minutes and went back to how it was before. Gave it another try – 10 mins @ 200 degrees C. It worked longer – for about 2 hours before it went bad again. What the heck! Thought will give it another try – mebbe the solder had a higher melting point and was not melting enough. So in it went into the oven again – 10 mins @ 220 Degrees C. Don’t think it can take any higher temperatures! Anyway. As of now, it has been working for the past 3 hours. With some signs of going bad again. Not sure it will hold for long.

    Another thing – when I was searching for fixes, I came across these universal LCD TV motherboards. They seem to need a LVDS interface to connect to the LCD. Any idea if this will work in my case?

  27. So funny…. IT WORKED! I also had no HTML inputs and after baking, it’s working fine on HTML.

    I baked it on average at about 390 degrees for about 12 minutes. I had it sitting on a double piece of cardboard.

    I’d like to caution those that try this… after removing from oven, make sure you are REALLY careful and lift out (with oven mitts) by only touching the cardboard and very gently move it to the top of the stove. Let it sit. Do not touch it for at least 15 minutes (30 is better). Don’t make my mistake, I thought that I could immediately lift the board off of the cardboard so that it might cool faster. Two IC’s fell off! I was able to solder one back on but the other decided to go walk-about and was lost. Luckily it worked fine without it…. whew!!!

    Good Luck!

  28. Worked like magic for me too !
    After all the comments here, i wasn’t afraid to try it on my 55″ LG LCD (55LE5500) which stopped recognizing all inputs (Antenna, USB, HDMI). I baked the motherboard for 12 minutes at 200 °C and now everything works again!

    Thanks for the tip and the manual!

  29. Yes its working. Lg42ld450 my tv.1 week ago all HDMI inputs not working and no signal. When I was a little afraid of this process. I urged earlier LG service. They asked me for $ 98 motherboard changed. It risk of it away and I am currently applied. Works perfect. Thx from Turkey.

  30. I’m getting desperate and ready to try this. I have an ‘older’ (2007) 50″ Panasonic Plasma TV. My main concern is the PLASTIC connectors. Plastics (used in electronics) melt at approx. 310 deg. F. That’s significantly lower than the temperatures you-all have been using to reflow the solder. Has anyone experienced problems with the plastic pieces? Thanks n advance!

  31. Hi all.
    after reading all these comments and those on other sites,
    I came to the conclusion that the defect comes probably down to one part that is easily traceable.
    so I order t an smd welding station , something I wanted to have anyway and broken tv,s are an perfect excuse to buy
    expensive tools.
    especially if it works and then you learned something new and get to keep a new toy for boys.

    so I followed the hdmi traces to this one little chip on my LG 47le8500
    and reflowed that with the hot air gun.
    non of the hdmi was working any more but after the reflow I got one out of four back in working order.
    I guess have to do the soldering completely over for that chip to get it working completely.
    but he main this is I was able to pinpoint the problem.
    something that strikes many different LG models.
    its the chip that is just above the hdmi sockets , I figure an experienced repair guy shouldn’t have any problems fixing it.
    for me this was my first smd welding experience
    a link that was helpful for me was,
    http://www.manualslib.com/manual/706422/Lg-47le8500.html?page=29#manual
    success folks

    1. update ,
      today my youngest son just connected his Xbox to what I thought was a non functional hdmi port.
      to my surprise all ports are working again , guess my efforts with the hot air gun are more successful than I initially found.

  32. im testing this “baking”.. first 10 minutes nothing happened.. im gonna try more heat and a few more minutes.. it could be a power failure? some bad connection in the house? something that could damage that especific thing (hdmi) ??

  34. 32LD490-ZB, 5 years old, HDMI detected but keep saying no signal.

    Took the circuit board out and baked for 10 minutes at 210C, come out good as new.

    Watch out for all the smoke/fume, there are a lot of residual flux left on the board, can cause lots of smoke and trigger the smoke alarm if not well ventilated. You shouldn’t breath in that stuff neither, not very good for your lungs.

  36. I was a hopeful skeptic who is now a true believer.

    10 minutes at 385 did the trick for a LG42LE5400. On my unit, the face plate for the side inputs is metal, not plastic. So I did not remove it and everything was fine.

    Thank you so much!

  37. Magic! LG 42LD550, purchased October 2010, stuck on LG logo with clock symbol. Baked board per instructions at 385 F for 10 minutes on cardboard in gas convection oven. Reinstalled board, not stuck any longer, but had some display issues. Disconnected and reconnected ribbon cables a few times and presto — all fixed! One of the ribbon cables must have been slightly misaligned when reinstalled.
    And it also fixed another issue I was having — my Chromecast would not work on this TV. You could sort of see the Chromecast image, but the image quality was terrible and the sound was all static. Chromecast is now perfect!
    Thanks!!!

  38. Hi

    I just say I was quite skeptical about the whole idea of putting my motherboard in the oven.

    Even though I had nothing to lose. This tv was on my wall in my living room and is the only TV downstairs. As the bracket is a close to wall one, I was forced to use the HDMI 4 port which is on the left side of the TV. So I initially thought that only that port was faulty. I ended up taking the TV off the wall to find that all the ports were not working.

    I left the TV unused for about 3 months and we resulted in only watching TV in our bedrooms.

    As it’s coming up to winter I thought i may as well get to the bottom of this and found this fix.

    I told my partner about it and she laughed at the idea, as well as friends (it does sound a bit silly).

    I have a gas oven so I used gas mark 6 at 10 minutes with an half hour waiting period and hey presto my LG 42LE5900 is now working.

    Thanks!

  40. My LG55 tv was working fine one night, the next day I was getting a no signal message from each of the 4 hdmi ports I tried using. I tried a new hdmi cable first then turned to two experts for help. Neither my 17 or 23 year old son could fix or figure out the issue. I found this page, read all of the comments and figured why not? Both of my son’s tried talking me out of it. I decided hey, I can’t watch the TV now anyway, I may as well give it a shot. Be sure to follow all of the detailed instructions carefully. I baked mine in a 385 degree oven for 15 minutes, followed by cooling for 30. I very carefully assembled it back together, plugged it in and I am pleased to report it worked. Thanks so much for the detailed instructions. I am very happy I didn’t have to replace a tv that’s only 4 years old!

  41. Hi.. I registered just to say how thankful I am to you..

    You saved me a minimum of $300 quoted by LG in Singapore to come home and replace the motherboard on my LG 42LE5500 bought in 2010.

    I followed all these instructions exactly (the plate on the side inputs is metallic on my model, not plastic. So I did not remove it). The 2 plastic connectors on the side are the most naughty to remove, rest all was basic. I baked for close to 15 mins with 200C on a preheated oven. The burning smell was evident in few minutes but I knew enough to ignore it. I let it cool for close to 45 mins just to be safe. Connected back everything with the help of pictures I clicked at every step.

    Works like a charm immediately and wife witnessed my proud Disco.
    It has been more than 2 weeks now and I was waiting to see if this is working fine.
    Just relieved to have a fresh lease of life on this TV. Hoping to use this TV for another couple of years max.

    Cheers !!

    1. Hello! Really thanks! it worked the first time for me but now 4 weeks after turned no signal….then I tried again for 15 minutes at the oven and now I have a new problem…. TV is working but its stuck in one channel… Remote control isn’t working and the touch panel at the tv also isn’t working… I don’t know what happened… do you have any idea????? My tv is a LG 47le8500…

      Really thank you all!!!

  45. Was skeptical, but it worked! LG55LE8500 hdmi ports went out. Getting no signal on all. Baked at 385 for 12 mins and TV working great! Thanks a million!

  46. Wow!! This actually worked for my 50″ LG plasma model 50pk750. Like most ppl I stumbled across this looking for a solution for my HDMI inputs not working. In the middle of playing my PS4 the screen just went black. Switched to the other inputs, tried different devices, chords. No luck. This saved my 5 yr old TV.

    **Caution**
    I baked it on 390 for 15 minutes and it got a little smokey and stunk like heck so be aware this could happen. Totally worth it though.

    Thank you, thank you, thank you!

  47. Hello! Really thanks! it worked the first time for me but now 4 weeks after turned no signal….then I tried again for 15 minutes at the oven and now I have a new problem…. TV is working but its stuck in one channel… Remote control isn’t working and the touch panel at the tv also isn’t working… I don’t know what happened… do you have any idea????? My tv is a LG 47le8500…

    Really thank you all!!!

  48. Hello Zedic,

    Finally found this post when i was about to order the motherboard from china.. not knowing if the part would be genuine or not.. My HDMi and component ports stopped working all of sudden one day and the engineer told me that the logic board may have a backward current which friend the board(without inspecting inside)

    I have a question for you. If the issue is related to the soldering connections and need reballing like many computer graphic cards require, can we not use a heat gun instead using a microwave so that we dont melt the plastic bits?

    Thanks,
    Neil

  50. Hello Zedic,

    Thank you! Thank you! Thank you!

    My LG 42LD550 has been out of commission since May. None of the HDMI inputs would work. I have been fretting over having to buy another television since I really don’t need a new tv. I read this blog post a few months back and was afraid to try out this “baking” technique for obvious reasons. So this past week, I decided to take my tv to a repair shop where they diagnosed my tv as having a damage mainboard. They wanted $300 from me. At that point, I felt I had nothing to lose in the “baking” process so I tried it last night and (385 degrees for 12 minutes)…my tv is like brand new! All of the inputs work and now I don’t have to spend all of that money on a new tv. My son was absolutely amazed!

    Thank you again:-)

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