I inadvertently stepped on the unplugged DC plug while moving equipments around, now I don't get a good 5V in connection. My work around is to use a 4mm x 1.7mm DC plug, but the 4mm size is a little bit big and takes a little effort to jam it in, the 3.5mm x 1.3mm plug will not go in at all because the center hole is too small. I measured the outer diameter is around 3.8mm, but don't know the inner hole diameter. Can someone tell me what the exact size is? Thanks
You may have solved this but an easy trick is to use a metric drill bit and insert it into the hole and you now know the diameter of the hole.
