Repair FFC with very fine traces

[endlessmind]

Hi.

I recently got my hand on a high-end Samsung QLED 65" from 2016 for free that had been dropped.
The only issue, was that a smal piece of the FFC thats bonded on the display was ripped (about 5-6 traces on 5mm)
that had caused horizontal rows of about ~20 pixels to be off (~20 off, followed by ~20 pixel on and repeat).

When gently pushing the ripped part back to where it belongs, the dark rows turned on again, (hurray!).
I currently have it pushed in place by a smal piece of tape with the adhesive side facing away from the FFC (to avoid causing more damage when removing)
and I would like to re-attach the traces somehow.

I might be possible to solder them with tiny wires without totally messing with the signal integrity, but I would have to get a good microscope and a micro-tip for the iron and more.

Is there some kind of ACF tape or similar that don't require lot of heat and pressure that can be used or does anyone have any other suggestions on how to fix this?

Thanks in advance!

[jeremy]

https://www.adafruit.com/product/1656 Perhaps?

[KL27x]

I might be possible to solder them with tiny wires without totally messing with the signal integrity, but I would have to get a good microscope and a micro-tip for the iron and more.

Equipment upgrade subsidized by a free TV? Sounds like a win-win. 0.5 mm pitch is doable. Depends on how much ribbon you have to work with.

Is the ribbon soldered to a rigid pcb on both ends? Or is there a connector on one end? And is it standard? I'm sure you have considered all the angles, but if you took a picture, maybe someone will have an idea you haven't considered. Ribbons like this can be hand patched, as long as you can get it out to where you can work on it. Fixing something like this in situ is another level of difficult.

https://www.adafruit.com/product/1656 Perhaps?

That's cool stuff. Sorta like those rubber things that some LCD's connect thru by pressure. Too bad it's not X or Y axis tape. That would be just the ticket for this. Maybe that's coming, next.

[Armadillo]

I won't try even under heavy microscope.

Use proper tool ACF, heat and pressure + alignment gear.   

[endlessmind]

I think @Armadillo is correct.

Took some pictures (attached) and added some back light to get a good look at the traces.
There is no-way I can hand-solder them, not even the awesome 3M tape will be able to fix this.

I might be able to find some local place that has the ACF gear and can do it,
but then I would have to be able to find an new FFC cable.
I guess I'll have to live with my how-you-doin' fix at least for now.