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The Mi A1 has a major bug where the display/screen stops responding and remains blacked out on receiving a call or message. Only the navigation buttons remain lit and any incoming call cannot be answered. A reset using the power button seems to bring the device back to normal but the problem reappears erratically and hence is difficult to reproduce. It must be due to misconfiguration of the light or proximity sensors or the ambient display. Please resolve this issue ASAP.
Device: Mi A1 Black 64 GB
Model: MDI2 Part Number: MZB5717IN
1st September security patch installed