Customer stated that they lost power in the upstairs master bathroom. Which I found on the right sink to have quick wiring done to the device and when plugging something in it would create intermittent power issues. I went to all the devices in the bathrooms and found this wiring done as well. A GFCI in the garage is what controls the bathrooms, master bathroom, powder bathroom, and upstairs. I replaced all the devices with new, I applied Shepard hooks to all the devices and installed new plates. I installed a new dual function 15 amp breaker at the panel on circuit #30. After completing I tested the circuit and walked the homeowner through it. I did notice that one device in the garage is not GFCI protected and I made the homeowner aware.