TCL TV Screen Blinking Flicker Issue Fixed! 

Hey! I just want to thank you for taking the time to make this video. I tried this and it worked like a charm. Finding 12 and 13 was not easy and it was even more difficult to put the tape on. But I'm so glad we live in a time and age where people from different parts of the globe can share their knowledge in this manner. Many prayers and blessings from my side to you! Thank you!

This is the single coolest, most helpful tech fix I have ever seen on the web. We’ll done, sir!

It worked for me. My issue was on the left side of the screen. I used masking tape and the pins where the 69th and 68th(from right to left), if you count the pins from left to right those will be the 12th and the 13th. No flickering after this!! Thanks a lot man, I'm sure this saved me a lot money and weeks without a TV!

THIS WORKED FOR ME ALSO. Like @johndate1776 commented above, my TCL (model 55R615) has two ribbons at the bottom of the screen near the IR sensor. Each ribbon has 80 pins. My flashing was on the left half of my screen, so I taped off pins 12 and 13 on that ribbon with simple black electrical tape. Using a reading magnifier, after about 10 cutting attempts, I got sliver of tape just the right size to cover 2 pins. I reassembled, and the flickering is gone. This video should win an award for the BEST fix-it video on RU-vid!! It is 1) very technical but easy 2) it's free 3) it SAVES the TV from going into the trash, and 4) IT WORKS! Great job. Thank you!

2 years later. Same EXACT failure flicker issue as you showed. I can't BELIEVE this fixed this issue, almost exactly as described. It is very hard to get the right pins, use your camera phone to count. Thank you, thank you. You deserve all the credit.

Omg. I couldn't believe it at first but this worked for my TCL55PUS too... Thank you so much sir for sharing your knowledge with us. My issue was with the left side so I had to do it with the other ribbon like what others said. It was really hard for me to carry this whole TV by myself as a petite girl and I almost cried trying to unmount then remount it back on the wall cause it was so heavy and it was so hard to position it in place without seeing the wall. Not to mention the difficulty of actually unscrewing everything and doing the fix. By the time I got to the taping part I was sooo exhausted and hopeless I just did what I could and prayed to God it would work and thank God it did. Honestly it may sound pathetic but this is one of the hardest things I've done in my life. But I managed to do it thanks to this awesome awesome video and even more awesome uploader. Omg I could cry. 😭😭😭Thank you so much dear Mr uploader. You saved me!!! I hope you get a million more subs and billions more views. ❤️❤️❤️ May you be blessed with everything you need all the days of your life. I am truly grateful sir 🙏🙏🙏

Bro it actually worked on my 3 year old TCL!! You saved me a lot of money. I'm subscribing to your channel now. Thank you for this info brother! Real Life Saver!

I just did this fix 20 minutes ago. I fixed a Canadian 55R617 (55 inch series 5 I bought in 2020). The ribbon in question was on the T Con board which is located at the bottom middle of the unit when you get the back off. Same idea, count in from the left on the cable until you hit 12/13 and lay down the tape. Took a few tries to get the position right, but it works!

Thank you for sharing the fix. Was the greatest tip to fix the TV flickering issue. I had the same flickering on the right side in Jun-2024 for my HCL Roku TV. Based on the comments, this looks like a wide spread issue for TCL . Fixed with tape like a charm. Used phone camera to put the tap on 12 and 13 pins. Difficult part was removing so many screws on the back of the TV and putting them back. All my friends think now I am an TV expert. Thanks again. Saved me a lot of trouble and money. Love from Canada.

Huge thank you to this RU-vidr!!! Saved me a TV purchase! This worked on my TCL 6 Series R613/R617. Seriously, I tried everything else I could find and this was the only thing that finally fixed it. THANK YOU!!

Oh man! You're an absolute legend! Covering pins 67+68 worked on my Mi TV 4X (55). I think it might be pins 12+13 if it's a problem on the right side of the panel and 67+68 if it's the left side. Not sure though, but mine was blinking on the left side. Thank you so very much. You really saved me and all these people a packet of money! God bless you! Keep up the good work.

One year has passed and this trick is still working. Thank you sir!

Wow, thank you so much. Quite possibly the best 4 minute video on YT I have ever seen. I was prepared to purchase a new TV, chalking it up to burn-in or just a cheap TV. A tip for when I was straining my eyes looking for the 12 & 13th pin - I took a 2x picture on my Iphone and then zoomed in when viewing the picture to blow it up, luckily my cable had blue markings every 5-6 pins that i could use as reference and the 12th pin happen to sit right below one of the blue dots. I used standard scotch tape and cut it with sharp kitchen shears. Thank you!

Big ups my guy! My TV setup was similar to other users with one main picture ribbon that then went to 2 ribbons. The left side was my issue so I followed directions from other commentors. Definitely a precision job but all I can say for others is don't give up! Took several tries but the issue is gone! Thanks again!

Wow, can't believe this worked. I have a TCL 55s423-CA. It's the same fix with the same pins. The only difference is the ribbon cables are at the bottom of the TV instead of in the middle! Thank you so much for the video!

Brother this fixed my flickering distorted purple image I taped a few pins clamped the one ribbon and it’s gone holy shit I can’t believe it god bless you thank you for this video you’re a life saver brother much love!!

Crazy. It works. Very hard counting the pins and getting the tape on. I asked a family member with more delicate hands and they could do it. It absolutely works though. The flickering stopped. Thank you so much.

Just worked on my TCL 2019 55" 4k. Incredible fix! Saved me the cost of a new tv!

Alright I managed to fix it for those TVs with only 1 ribbon cable when opening the main plastic compartment. You HAVE to open the bottom plastic cover to be able to see those 2 ribbon cables because the main plastic cover doesn't show the 2 cables, only one! Managed to fix it first try using the video shown here. Same method, you have to put tape on Pin 12 and 13 with the black isolation tape that came all over the TV. I have a Xiaomi Mi Tv 55' 4s Edit: thanks to the uploader for the tip and actually share it with everyone for free! Without this, people would have bought a new TV. Who says hero's wear capes!! A big thanks to you kind sir

Hey! This 100% worked and I’m so grateful for the time put into this fix, and the video. Only fix I’ve found that worked! Well done and thanks for the tip. Note. Mine is a 55” tcl and the wire ribbons were located and arranged differently than in this video - but I looked for where I could find the “1-80” numbers marked and found it under a panel on the bottom. Removed panel, counted in to 12&13 and it totally worked. First go I saw a pink vertical bar but adjusted and it worked. Thanks again!

I have no words!! Saved me a lot of bucks!! I have no idea where you learnt it, but thank you for sharing it online!! It worked like magic!!

This worked on my nearly 4 year old TCL 55". It started doing the same thing on the right side of the panel yesterday. One thing that's not mentioned is there's A LOT of screws to remove. Best to mark the pins on the ribbon cable with a fine point Sharpie first. This will give you a better idea of the width of tape to cut. I used electrical tape and believe me it's NOT easy. I didn't get it perfect the first try but using the tip of an Exacto blade to slighlty shift the tape left/right I managed to finally get 12 and 13 covered. Thank you very much for the video, you saved me $ and aggravation!

This fix worked like a charm for my TCL 55S405. The wiring is a little different on my model, but the idea is the same. Not sure how you figured this out, but I’m glad you did. Thanks!

Good day! How did you know the defective is 12 & 13??

Seems like is happening to alot of people, around the same time

Thank you for posting this!! I couldn’t stand watching my TV and no other solutions worked. I did the 68th / 69th pin (from another comment) on the other side since it was my left side. Took me less than an hour. 🤘🏼🤘🏼🤘🏼

How did you know its pin 12 and 13?

Wow I didn't expect i would find a video addressing this problem. Facing the same trouble with my TCL tv. Thanks for the video!

It worked for me, Thank you so much man!!! Saved lots of money. Saved My Xiomi 55 inch TV. under the hood I found same TCL hardware. Repair guy was asking for minimum 3K INR. with company it would be 15K + INR. Actual cost to me less than 5 INR.

Thanks for the video! Here are a few tips that worked for me. 1. Left side of the tv flickered so had to pull out the opposite ribbon to the one in this video. Then tape pins 68 and 69 (like others have said) 2. Counted the pins by listening to an exacto blade go over each one. Was much easier to count the clicking sound and feel than counting just with eyes. 3. I put blue marker on the tape so I could see the tape better and make sure I covered correct pins. Really happy I found this video. Now just have to wait and see if the right side fails too. Not a good sign there have been so many people with this problem. TCL👎

Sir I cannot thank you enough for this video, it took me a few tries to get it right and i was almost about to give up but what worked for me was that I tried covering one pin to the right and to the left of the 12th and 13th pin using a masking tape. Bless you for saving all of us a whole alot of money!!!

how to tape it ? i want to know we have to apply the tap in upper layer or the ribbon pin itself ?

THANK YOU, THANK YOU, THANK YOU. It worked!!! I was ready to junk my TV and buy a new one. There are several videos online that say to unplug and plug it back in, reset, adjust this or that and none work. This did! I most definitely have subscribed!!!

Same issue happened to me today .. exact ditto.. and man I don't have words how to thank you. It worked so well and it's back to normal . All thanks to you . Take a bow !!! 👍🏼

So it's just using scotch tape on pins 12 and 13 to avoid contact? What were those pins for? I wonder if the TV's heat can create glue to melt and move to other pins. How long have you test this out. Thanks, BTW!

It just started today to do exactly that. I used like the cheapest scotch tape and it worked! Thank you so much

Thanks a ton man. It worked for Mi TV 4X 55 inch Indian model The right side panel was flickering, I covered pins 67 & 68 left to right (12 & 13 right to left) Local shop asked 5000 inr (60$) so I fixed it myself God bless you!

Just pulled my TCL off the wall and taped the 12th and 13th contacts on the right screen ribbon. Worked like a CHARM! Thanks for putting this video up, sooooo tired of seeing my TV flicker! Your instructions are so clear that I was able to pull it off first try, but man those ribbon contacts are super small.

After multiple tries, it worked! Thank you so much, brother! You saved us a lot of money. Our problem is on the left side of the screen and we used masking tape to block the 68th and 69th pin, took us two hours. Thank you! 🙏🏻

Thank you so much sir. It really worked. It was a bit difficult to identify the pins 68th and 69 th and taping them correctly. It completely stopped flickering on the left side while viewing on the front side of the LED TV. You have saved lot of money. This stickering also stopped grey lines appearing on the screen also. Thank you once again.

It's worked! 🎉 mine is the left side of the screen, hard to count the pin, but I did it anyways and it worked, if yours is left side just count from left to right pin 12-13 cover both with masking tape, that you so bro 🥳

Awesome video! Buy I do have a question. My 55in TCL has one black ribbon and looks like the 2 sides of the TV is daisy chained. Which pins would I tape in this scenario?

Thank you! It worked for me on my TCL 55". Fortunately, I had a macro lens for my cell phone camera, otherwise my 70 year old eyes would not have seen the pins.

Omg got a free 55 tcl TV and fixed it in one day from this video ... thanks so much ... appreciate the video

Great job. I had to do something similar. It’s usually a blown pixel messing with the clock signal. Blocking off one the pins bypasses this. If you look closely at your screen you may notice one pixel line greyed out, but the rest of the screen works perfectly well. TCL panels seem to have this issue, BOE and AU Optronics panels seem spared. Good job making this content accessible.

Nice video! Just wondering what pins to remove if the flickering happens on top and goes down to the half of the screen

It actually works.. thanks bro! Successful after 3 attempts switching on and off the tv to check. First 2 attempts of using overlapping scotch tapes didn't work. Finally works when I used a masking tape over the 2 layers of tape to fully block the connection. Easier to cut the tapes using penknife and cutting board. And magnifying glass to count the 12th and 13th strip.

this worked for me like a charm. ❤ thank you so much for this video. saved me from buying a new tv. customer service charged 300 for a visit and said to throw it and buy a new one. 😮

I'll try this as well. My TCL started doing this 2 weeks after the warranty expired. Crazy.

Thank You so much brother. I had same issue and for that I found this video. Counting and Taping are the hard part, but what I was mistaking was correctly putting ribbon back on its exact spot. It worked third time and my flickering in my Mi TV was completely resolved. Again Thank you for sharing this video.

Posted my comment in the wrong section. Moved it here. Original comment below. Hey! Wanted to say thank you so much! I'm extremely glad I found your video! You saved me a couple hundred USD. Your fix seems to have solved my flickering issue on the right side of my 55inch TCL Roku tv. Hope this fix lasts. Thank you again. P.s. How did you know it was pins 12 & 13? And what do they control? I'm very curious.

thank you my man, i did it and works like magic! by the way, is your TV still works from the moment you uploaded this video till now?

I have yet to try this "fix", maybe tomorrow. However what are pins 12 and 13 actually for? I assume they are meant to do something, so disabling them by covering them has no negative impact? Just curious

I thought i need to spend thousands to resolve this issue! This helped me so much! Thanks much buddy! Btw how did u know it's 12 and 13th pin causing issues and covering those with tapes will cause difference in display clarity?

I can not believe it IT WORKED! ❤❤ Lots of respect for you my guy! You saved me a lot of money and stress! Though it did feel like surgery but it worked!! 🎉

Man.. cant thank u enough.. it works...it was difficult .. preferable to have good lighting and a magnifier... the video is very helpfull!!! Thanks again

This just happened to me, and voila, this video saved my TV. Many thanks for your help!

You are saviour! Tried this with my Android TV which has huge problem than this and it worked! Thanks 🙏

Hello! Thanks for the video. What would be the solution besides taping (actually replacing the faulty component). Which component would it be? Thanks!

This thing works in a TCL 55 4k! Thank you mate, you saved me some hundreds!

Very good bro, this works in Sony bravia kdl led tv also numbers 12 and 13? Cheers bro

Hello sir. Very informative and helpful video. I have black horizontal flickering Line on the top right of my tcl. What pins are associated to that part? Thank you

maybe you can tell me wich flex black or white and wich pins will work in TCL U55C7026 will work your method?

This worked like a charm - I think I accidentally taped the 14th pin as well though. Any repercussions?

Thank God for Indian people man u guys always save me money in repairs😂

Thanks a lot bro , solved the issue . Though searching for 12 & 13 pin was tough . Black tape did my job .cutting such thin tape and pasting was tough though . Thanks a lot for such guiding and descriptive video

This actually freakin worked!! My TCL HAD THE 2 ribbons at the bottom (near the infrared sensor). Sure enough, took some time to get the tape sliver thin enough, applied on the end of an exacto knife with the help of iphone magnifier on a stand. But wow. 🙏👍👍

Worked for me left side flashing. So left ribbon 12 and 13 counting from left. Thank you

Thankyou so much sir...i was facing this issue my full screen was getting dim and bright...i fixed it by your method.... thankyou once again for your information it was really very helpful

My left side was flickering Much much much thanks after trying 8 times I accurately applied tape to 12 and 13th pin and wallah it's working like a charm Thankssss love from Pakistan

Thanks for posting a valuable video that solve the issue for many of us. My question is that what about top side of display flickering exactly same as your tv? My tv display flickering from top side. Thanks

finally my tv is blinking off At first I did not understand, saw the comments of others and then understood, then I tried and it was done.😇🤗☺Thank you so much 💌💜

I had the same issue with my TCL Iffalcon 55 inches tv..Followed your instructions and it worked...thanks for ur info.. I have a doubt, does this affect anything else on the long run??

Cool stuff! Will do it on my xiaomi q1e later. Dont know either its will work or not. Btw what is the logic behind it? And does pin 12 and 13 is just unnecessary or there is something we will lose atfer not using it?

4/2023, Element TV. I was beyond skeptical but this actually worked!

Thankyou so much for this bro. I fixed my TCL tv with this method. But my issue was with left side of the tv flickering. So i taped 12th and 13th pin of the other ribbon connector. Please note u have to count from the opposite side for left side issue

Hisense 55N3000UW. It was driving me crazy. Covered pins 68 and 69. Had to use a microscope to see and cover the correct pins. Worked like a charm. BUT WHY? I'd really would like to know. Thanks anyway. This was a fantastic fix.

My TV is doing this. I'm going to have to try this. What do pins 12 & 13 do?

What does the 12th and 13th ribbon do? My tv has the same issue and I am going to work on it today.

Good info brother, Is this work for left half too By tapping 12 & 13 in laft ribban

Thanks a lot man, i taped number 12 and 13 as you said works like a charm ! TCL 55p8M

Man i love you, i was about to buy another tv and bro you saved me thanks so much man you are a blessing

My problem is from left side flickering ,I blocked pin number 67 and 68 it works for me . Thanks so much

Thank you for posting this video, I have one ribbon, my roku tcl is 32" ... Do you believe the number of pins to count will vary from size of tv ?

This seems to have fixed the problem for my 55 inch Toshiba Fire TV model 55LF711U20. The ribbons were a little bit different on my TV because the circuit board was at the bottom of the TV, but it still worked to cover 12 and 13 with the tape. Thank you so much!

What type tape you use to solve this problem tell me

Do you have to tape both sides of the ribbon or just the one side

Hi this fixed my flickering problem thanks so much I still have horizontal lines at the top and bottom of the screen and now the right side is not as sharp looking as the right but is very useable but I would like to know which pins are responsible for that

You are a genius ❤️. It worked absolutely fine. I followed all your steps. Thanks for saving my 25000. 🙏🙏

This worked for my Iffalcon 55k2a TV too. Though I'm not sure enough that I've taped the exact 12 &13 pin as it was really tough to pin point them. However it worked for my TV. Thanks for the video guide.

Anyone watching or commenting here must have had the same problem at some point. So it begs to ask what is the actual problem? Bad wiring harness/ cable or the connector of the TV? Is this common issue only with TCL or all TV manufactures ??

Fixed my TV just following this video. Saved me a bunch of money! 10/10 would recommend everybody facing the same issue to try this

Aloha I have a TCL TV it is slightly different to yours , mine has 100 pins on each ribbon cable do you know if the same pins 12 & 13 work on the wider ribbon cable . Thanks

Hello, I would like to know if this is just a temporary fix and if so, what would be the proper way of fixing it? Will I have to replace the t-con board?

My Roku 55" TCL 55C803 4K UHD HDR has the problem where the top 1/2 or 1/3 of the screen has continual rolling up of a lighter screen. Any suggestions? The TV is about 5 years old. I went thru troubleshooting with TCL to no avail. Thx

Hi do you have a technical explanation why this works?

Will you clarify me one thing? Is is an issue with the ribbon or a circuit board problem? I am getting this 80 pin ribbon on amazon so if i replace the ribbon will it work or taping is the only solution. My tv is now out of warranty so i dont want to call service centre they will charge more

What is pin 12&13 ? Its ckv or what signal?

Thank you so much! You saved my 55" TCL ❤

So amazing! It works on my 55P6US. I've subscribed your channel. Thanks a lot again!!