1. Windows Central Question's Avatar
    Apps all run in landscape mode. To be perfectly clear: Rotation Lock is OFF. Turning it on has no effect.

    I have tried a phone reset, and restore from backup, but the problem persists.

    Friday, February 19th, my phone started the weird behavior of apps running only in landscape mode. Perhaps the date is important, if there was an update affecting this.

    Microsoft Lumia 950
    Carrier: AT&T
    Windows 10 Mobile
    Version: 1511
    OS build: 10.0.10586.107
    Firmware revision number: 01078.0001715454.29031
    Hardware revision number:
    02-22-2016 01:10 PM
  2. TimmyInPA's Avatar
    With the help of an app, checked the accelerometer and found the X axis is stuck on 90 degrees, meaning that the accelerometer is broken. Returning to phone carrier for warranty replacement.
    02-23-2016 08:02 AM
  3. asten's Avatar
    I have the exact same problem on my Lumia 950. Just started today. I am on build 10586.164. All apps start in landscape mode. Rotation lock does not make a difference. Which app did you use to verify that the x or y axis was locked?? I really don't want to return my phone unless it is very neccessary. Any other ideas on how to solve this issue?
    03-20-2016 08:32 AM
  4. TimmyInPA's Avatar
    I don't remember the name of the app, but recall searching for "accelerometer".

    The problem was with the device itself, and I never could "correct" it with the software, including any OS setting. Since the phone was under warranty, I called AT&T and they sent out a replacement.

    Good luck!
    03-20-2016 08:35 AM

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