One of the most important and common tasks as you received a new PLC is a firmware update. When it comes to Siemens PLCs in the S7-1200 and S7-1500 families, you can use TIA Portal to push the firmware update to the device.
This is a companion discussion topic for the original entry at https://www.solisplc.com/tutorials/how-to-upgrade-the-firmware-of-a-siemens-plc-using-tia-portal