Do not assume newer is better. You must match your hardware revision (MLFB ending).
: Check the "Run firmware after update" box and click "Run update". Method B: SIMATIC Memory Card (Offline) TIA Portal: S7-1200 and S7-1500 CPU Firmware Upgrade 15 Oct 2023 — s7-1500 firmware download
“Open the Online and Diagnostics view... Select 'Firmware update' from the 'Functions' folder... click the Browse button and navigate to the location that contains the firmware update file.” "https://docs.tia.siemens.cloud". Pro Tips for a Smooth Download Do not assume newer is better