For performance, the firmware must be exact.

Once downloaded, do not extract immediately.

To ensure you receive "extra quality" authentic software, always use official channels: Philips Support - Software & Drivers Enter your model number into the search bar. Look for the "Software & drivers"

The QM16XEU chassis, found in models like the PUS6401, PUS6501, and PUS7101 series, relies heavily on software optimization. A high-quality firmware update provides: Better local dimming algorithms for deeper blacks.

To maintain "extra quality" performance after a major update:

Before downloading, verify if an update is necessary by checking your TV's current version: button on your remote. Navigate to Update Software Current software info