Need Help with Wireless Xbox 360 Controller

panic mode

Joined Oct 10, 2011
that is possible. it does look different from the other vias and the second picture is too fuzzy... maybe it is just filings from your sanding that got into the via. btw the trace just below via is a problem and will need patching.

did you check it out with a DMM? this is just an input device do board is not complex and current draw is very low. in other words i do not see a big reason for it to fail unless it was a problem spot all along and got corroded. the vias are not tented - they are exposed.

so just poke it with a wire and solder it to both sides, then measure again.