Hi All, I was unperceptive at the end of the past year, and I make a mistake. I downloaded and then installed the first firmware, waht I found in the Q902's download site. So I upgraded to the version 4.3.3 - 0398 (07/12/2017) from version 4.2.4 - 20170320 (20/03/2017). The upgrade was successfull, ...