Lava Mobiles — After installing the new update display brightness drastically reduced

Hello Iam using Lava Blaze 5g. After the new update my display brightness drastically reduced. New update has bug. Before releasing any update first check it. I know that. Lava s quality is very poor and it's products also. So what can be expected. Why you cheap phone company exist in india. No service nothing available. Fake false company