1. Bobby_yan's Avatar
    Problem: Cannot turn on the screen by pressing the power button sometimes. The screen is black or very dim, I cannot tell. One can see nothing on the screen, and it doesn’t accept any touch input, either. The phone still rings if there’s an incoming call. If this happens, the following several presses (about 10 - 20) on the power button will probably lead to a reboot. The “screen auto-rotate” and the proximity sensor may fail after the reboot, but will recover after a manual reboot.

    Frequency: Fewer with higher Rom version. About once per day for 4.3.

    Other description:
     The problem frequently happens when I just take the phone outside my house/office, and seldom happens when the phone just stays somewhere.
     The problem seems to be irrelevant to the remaining battery capacity or the uptime, but it never happens when charging.
     The problem seems to be irrelevant to the Apps installed.
     The problem seldom happens in the first 3-4 days after flashing a Rom, but happens more and more frequently as time goes by. My guess is some cache is stuffed by some trash, which causes the problem. The phone may be fine as long as the trash can be cleaned up on a regular basis.
     I manually reboot my phone at most every two days.

    Solutions tried, but don’t work
     Flashing official ROMs 4.0.4, 4.1.1, 4.1.2, 4.2.2 and 4.3 following the procedure “adb reboot bootloader; fastboot oem unlock; flash-all; fastboot oem lock”, without google wallet, not rooted.
     Turning off the auto-brightness control, as suggested by some post on the Internet.
    08-22-2014 04:34 PM

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