Hi, I wonder if someone can give me some advice. I've been used to setting up guitars but I've just bought a concert banjo uke. When it arrived the remo skin was covered with plastic film. This went under the chrome ring so to remove it all I had to undo all the lugs after taking the strings off. I then replaced the chrome ring and refitted the end piece. I've now tuned up and set the bridge in the correct position but the action is too low and the strings are buzzing. I'd appreciate any advice on sorting out the action. I'm not sure whether you have to adjust the end piece to raise the action. Thanks
Fifth, have you tried putting a thin shim (no thicker than a popsicle stick size or so) under the bridge feet? If this works, getting a new, higher bridge would be in order, and you can sand down the feet to get to a more comfortable height.
There are probably other quick ideas, but kniwing the brand/model of the instrument would help.