Changing a ywo switch bathroom outlet
 

Trying to change switch in bathroom. Pretty sure I connected wires correctly. One switch works, but the other switch keeps tripping the breaker. The house was built in the 30's, still has original wires. Connected 2 hot wires on right side of switch and 2 wires on left. There is no ground wire inside box. Help before I go crazy!!!

Is this a 4-way switch, meaning you're able to control a lamp fixture from 3 or more different locations? Odd for bathroom.

What are the wire colors, and please describe this switch that has two screws each on either side.

Most likely you may have oringal tube et knob wiring if so this will get very tricky to deal with it.

Before we can comment more on this can you post the photo in the fourm so we can able determed what it need to be done?

Merci,
Marc