A:Answer Hi,
same problem for me... started after i updated to latest version of software... was the update to get to android pie, now my tv is getting artifacts on tv then buzzing sound and then restarts and does the same if i use it again...
i contacted sharp but they told me that Hisense handle that support now, but since the tv is more than 1 year old with no extended warranty bought they cant tell my if i can do a system downgrade... my last version of android was working just perfect...