Update: V7.5bt-fk-tp

The only truly reliable source for firmware is the original seller or factory. If they cannot provide the exact file, your next best option is to search forums for users with the exact same board code and hardware configuration.

If you have noticed that your screen requires multiple taps to register an input, or if the touch coordinates feel slightly "off" (ghost touching), the -tp suffix indicates updated touchscreen drivers. This improves the sensitivity and linearity of the capacitive touch layer, making the interface feel snappier and more like a modern smartphone. v7.5bt-fk-tp update

(or "Software Information") on your unit to confirm if you are currently on an older version. Source the File The only truly reliable source for firmware is