I'm doing 2 repairs and currently the pads are missing. I have jumper wire and I try to solder it on with flux but the tinned copper wire doesn't stick too the surface. I've been trying for 4 days now and can't seem to get it. I'm making sure the tip is clean, I'm tinning it, it seems like it just won't stick. Any tips?
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2\$\begingroup\$ If the pads are missing, you need to scrap away some soldermask and solder to the traces that attach to those pads. \$\endgroup\$Hearth– Hearth2019-09-30 22:00:39 +00:00Commented Sep 30, 2019 at 22:00
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3\$\begingroup\$ Now that I look at the image.... Unless this is something you really need that cost you millions, just get a new one or give up on it. That's beyond any reasonable repair. \$\endgroup\$Hearth– Hearth2019-09-30 22:02:01 +00:00Commented Sep 30, 2019 at 22:02
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\$\begingroup\$ Yes I figured on that one. Was just going to get a japanese board and swap everything so it's in English \$\endgroup\$Kushimaru– Kushimaru2019-09-30 22:12:49 +00:00Commented Sep 30, 2019 at 22:12
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\$\begingroup\$ You've pulled the pads off the board. No amount of flux will make wires stick to the bare PCB substrate, and it wouldn't help you even if it did. \$\endgroup\$brhans– brhans2019-10-01 01:27:04 +00:00Commented Oct 1, 2019 at 1:27
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\$\begingroup\$ What size is the package? \$\endgroup\$Bruce Abbott– Bruce Abbott2019-10-01 04:07:33 +00:00Commented Oct 1, 2019 at 4:07
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1 Answer
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The pads are gone, they need to be re-built.
if you can figure out where they connected you can solder new wire to replace the missing copper (need to scrape away some of the green) and then glue the wire down with heat-proof glue, and then solder the chip to the new wires and the existing pads.
