Today I faced issue after updating the software one ui7 . After updating it's keep on the crashing and boot loop several times . I am about to catch a flight and ticket is on the phone . I am not able to anything . It really gave the heart attack for me . I never expected something like this from samsung that is also on well known features and software. What type of development and validation they are doing . Keeping openly these many issues due to latest software . They are not even provided back to switch the Android slot of older version .