A: Typically yes for security patches, but major feature updates may require a paid maintenance agreement.
Instead of searching blindly, try these methods to locate a safe update: hktrt2841p638 firmware new
Unless you are fixing a critical error, if your device is currently working, do not update it. The risk often outweighs the minor improvements of a generic firmware patch. If you must update, verify the hardware version against the firmware file twice before proceeding. A: Typically yes for security patches, but major