Yesterday after I plugged headphones into brand new S20+ (Exynos) phone, new firmware update appeared on screen, and after installing it I have noticed a little bit later green vertical line on screen.
I've tryed restart and boot into safe mode, but didn't help. Also I've tryed test by typing in Phone app *#0*# and activating red, green, blue calibration several times but with no results.
firware update and my phone never drop or got hit by something.
Please help 😞
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