Without more specific details about the tpmt5522pc821 firmware, such as its intended application or the company that produced it, it's difficult to provide a more detailed analysis. If you're working with this firmware or a device containing it, I recommend consulting the official documentation or contacting the support services of the relevant hardware manufacturer.
Note if the firmware is for HD (1366x768) or Full HD (1920x1080) panels. Using the wrong resolution firmware can lead to a blank or distorted screen. Allied Telesis 2. Key Features & Fixes Include a "Release Notes" section even if it is generic: Performance: Improved system stability and UI responsiveness. Connectivity: Fixes for Wi-Fi authentication or Ethernet dropouts. App Support: tpmt5522pc821 firmware