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What do Nokia use to glue LCD/ main board cables with ? Answered

Opening a Nokia 1661 mobile phone (its an uber-cheap UK phone ) to replace the LCD, I have the usual orangey flex PCB material off the LCD, basically GLUED to the mating surface on the main  PCB. The old display tails peeled off, but I can't identify the strange grey glue they used to mate the connections.

Has anyone any ideas ? It almost looks like partially cooked solder paste, but that would conduct all over, and I can't see any isolation. Its not "rubbery" that I can tell.

Thanks

Steve

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reji (author)2009-12-22

i've already changed one of these 1661 LCD by simply peel-off the old one and remove the remaining glue by scratching. carefully solder the new display.

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lemonie (author)2009-12-03

Who knows? I'll be one of those special industry-tailored-for-a-purpose things I'd think. Much as we might both go searching, the person who finds the specific chemical make-up would deserve a prize.
"Industry-polymer/adhesive news" might be the best entry to finding out?

L

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steveastrouk (author)lemonie2009-12-03

What worries me is how the hell to align the wires without the magic 'ikum'

- the thing must be replaceable, or you wouldn't be able to buy spares.

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lemonie (author)steveastrouk2009-12-03

Mmm, sound like "not user serviceable", BUT someone is selling the parts. You could use epoxy or silicone-sealant?

L

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steveastrouk (author)lemonie2009-12-03

Videod the dis-assembly to do an 'ible - and now I can't get it back together again...

The Irony.

Steve

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lemonie (author)steveastrouk2009-12-03

Oh cack. I don't suppose the video helps on reassembly...

L

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Sandisk1duo (author)steveastrouk2009-12-03

you could try some wire glue, spread it only on the contacts, not shorting anything out


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