I update one ui 8.5 beta.... But after updating my phone faces some problem. When someone call me the screen is not open,,, the screen colour shows black but ring sound is start,, after some time the screen will open and then i understand who call me
Nah, software updates are usually free, but I can't say exactly. They may or may not charge depending on the service center. Even if they charge, it will only be 200 to 300 rupees. So relax.
