Problem Phenomenon:
Colored vertical lines appear at the bottom of the phone.
Solutions:
This phenomenon occurs if the Profile GPU Rendering is turned on by mistake. Please find and click Profile GPU Rendering in Developer Options, and select Close.
realme UI 7.0 & 6.0 & 5.0 & 4.0 & 2.0 & 1.0: Settings > Additional settings / Systems and Updates > Developer options, turn off the developer options switch. ( Developer options need to be turned on to find this option in Additional settings)
realme UI 3.0: Settings > System settings > Developer options, turn off the developer options switch. ( Developer options need to be turned on to find this option in System settings)
realme UI R & Go & U & S & T edition: Settings > System > Developer options, turn off the developer options switch.
Note: If you cannot find the developer option in Additional Settings, please go to Settings > About Phone / Device > Version Information > Version Number, and tap the version number 7 times in a row to enable the developer option.