Reset your Panasonic television to factory settings by using the Settings application, pressing certain keys at the same time or opening the Self Check utility. Depending on the exact model of the Panasonic television, some of the methods may not work.
Resetting your Panasonic television results in the loss of all settings, including picture calibration and network details. Taking screenshots of the settings or writing them down before performing a reset helps you reconfigure your television.
Press the Menu button on the remote, scroll to the Setup option and press OK. Select System, scroll to Factory Default and press OK. Follow the directions on the screen to complete the reset.
Alternatively, turn on your television and hold down the VOL button on the television and the Menu button on the remote for five seconds. Once the Self Check utility launches, hold the power button on the television to power it down. Turn the television back on to launch the First Time Setup.
If these methods do not work on your television, wait until it enters standby mode, switch it on and open a random channel. Press the "/" button on the remote controller while holding down the Function and Volume Down keys on the television. When the television enters Self Check, follow the steps for the previous method.