Ford AU series climate control LCD flex repair attempt with ACF tape. 

While I would attempt to explain the meaning of the word attempt it is obvious in this instance that doing so would be an attempt at futility.

Seller shop5592507 on ali was the one that arrived. Took 3 attempts to get it lol. Also just found a lot of cheaper bottles of removal solvent. Where were they when I was first looking.....

There's enough particles suspended in the glue to supposedly make a connection but spread far enough apart (at microscopic level) so as not to touch each other and bridge across the contacts.

@@JonnyFix Hello, I've a similar issue with a cheap Temp-Hygro meter bought several years ago. The LCDs (there're 2 of them, one for temp, the other for hygro) shows nothing now, I thought it was the battery but it's not, looks like LCD contacts to PCB are broken. I think it is a Zebra connector from PCB to the glass of the LCD. I've disassembled the thing and, when I press hard with my fingers, some digits come back to life, sometimes not...And when they come back, they show up clearly (=> not a battery issue). By pushing a bit too hard, a zebra connector disconnected completely. Also, the PCB is not perfectly flat and level, it ripples a bit... When I look closely to the Zebra connector, parts corresponding to contacts look more black than other parts (some thin layer made of some glue, or, I don't know what...) If I use my DMM in continuity mode, there's no short between the black parts (supposed to be the contact part, and matching locations on the PCB) and the opposite side of the connector as if some insulating layer prevented any contact... Is the Anisotropic conductive adhesive you use in this video suitable for such a repair ? Do I have to clean the old one first ? If yes, how ? Alcool ?

@@gloubiboulgazeblob No you can't use the tape in place of a zebra strip. Gently clean the glass, pcb contacts and each side of the zebra strip with alcohol. The ripple in the board, depending how bad, could be your biggest problem. The strip will compress a little to form to the shape if not severe. If the board is warped a lot, maybe caused by pressure on it given how it sits in the case over time, you might be able to straighten it with heat as they tend to soften up over 300deg C. Of course be careful not to desolder parts in the process and use gentle pressure you're not looking for a fast result and you might need to go slightly past straight to cause it to be straight when it cools. You might just need a new zebra strip but you could try putting it in upside down and/or rotating it end to end so that it sits differently to how it has been. Also depending on the frame that holds the lcd you could put a strip of thin cardboard between the glass and the frame so when the frame is tightened down it pushes just a little bit more to make the connection.

@@JonnyFix I see. Indeed, the ripple in the PCB is the biggest problem, that's in fact the root cause of the problem ! (bad quality PCB, too thin for the application). There're already spacers to level the LCD glass. Given my experience in that domain and the state of the PCB, it has 99% chances to be a fail...The best to be done is to make a new PCB and take all parts (not much though) and put them on the new PCB. Anyway, thank you for your advices !

Neat. I hope you have more success than me.

I don't sorry. Would need a lot more practice for this particular issue at least... or a better solution :)

Thank you

I saw on a web (on a forum) someone trying to do that, and failing, and it wasn't even on glass

It should work. I'll keep an eye out for something else to try it on to show it.

@@JonnyFix ok that will be good

I'll give anything a try once :)

@@JonnyFix I don't think ill answer that... ok sticking a carrot up your nose :-D Yes i take things literal lol.

did you drilles the glass too? or just the flex? Do you have a picture?

I don't know sorry, I was given it without that plate. Must be clips somewhere.

@@JonnyFix Update: I got it all fixed, the black plastic was glued on by the previous owner, hence my struggle

@@jimmynoodlepickle740 Awesome!