The safest way to obtain firmware is by entering your serial number on the Hisense USA Firmware or the Hisense Global Support Regional Support Portals: For European models like the
* COMMERCIAL. * Firmware Download. SUPPORT. Firmware Download. * Company. Hisense-USA How to update software on Hisense VIDAA smart TV?
, check Hisense Spain , which specifically lists firmware downloads for the M5500 series.
Reconnect the power while holding the on the remote.
