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re-solder a part on PCB

I purchased a DIY game, that you assemble yourself. I soldered an 8x8 led matrix box in the wrong direction and had to de-solder it. After cleaning the PCB eyelet’s, I attempted to re-solder the matrix box, but the solder won’t stick.  Can it be fixed using a conductive silver paste adhesive  ??

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@fixpcb we would have to see both parts. Most likely cause would be that you’ll be missing some solder pads etc. Adding images to an existing question

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