Shortly after installing android 15 I noticed the screen activating repeatedly from standby into lock screen. It does that infrequently, but sometimes more than once a minute. I noticed the problem is caused by the flip case, which has magnets in it. Taking the phone out of the case stops the phone from going out of standby mode on its own.
When the phone is in the case, the screen doesn’t activate immediately when I open the flap of the case.
I looked for settings which could help, but I didn’t find any. I tried disabling NFC, but that didn’t work. Neither did resetting the phone to factory settings.
Since the problem with the screen activation is draining the phone’s battery, I’d like to ask if someone knows of a setting or some other solution which solves this problem. Thanks in advance.
I have the exact same problem.
Magnet in the flip cover is triggering the screen to wake up from standby. Problem started after upgrade to Android 15.
Perhaps the hall/proximity sensor is too sensitive or enabled while it shouldn’t. I guess this could be related a feature to automatically unlock when you open the flip case. However, I cannot find a setting to disable this feature.
I have the exact same problem. I own two Fairphone 5 (256 GB). Both were fine before the update to Android 15, but since the update they react to magnetic fields (the screens randomly turn on and off).
Has anyone found a solution yet? I’ve been waiting for a software update from Fairphone to fix this. I’d really prefer not to have to send both FP5s in for repair.
My FP5 has a flip case with magnetic hasp, but I haven’t noticed the problems described above.
In order to have the screen turn off when the case is closed, and turn on when the case is opened, I use an app that implements the proximity sensor. This has continued to function perfectly with A15.
A workaround has now been found for the problem of continuous unlocking. The flip cover has magnets. I removed them. Now the phone works normally and the battery continues to function for longer periods of time, as I was used to. The magnets apparently affect the proper functioning of Android 15 on the Fairphone 5. Hopefully it will be fixed with a new Android update to be able to use magnets again to keep the flip straight.
I have a similar problem: I don’t have a case for my phone. But when I put my Phone on the edge of my Framework Laptop, the magnets in the Laptop trigger the screen to turn off. I tend to do this, when I want to keep reading stuff on the screen with the screen slightly propped up. But then I often immediately get a black screen, until I pick up the phone again.
This means, the Sensor is triggered by Magnets behind the phone, and it is way too sensitive. (Both too sensitive for tuning the screen on, as happens to everyone else here, and too sensitive for turning the screen off, since it is turned off by other random magnets on my desk) Very annoying! Please make the sensor less sensitive.
(Possibly hallucinated side note: Gemini said, this behavior could be deactivated in Stock Android with this command: adb shell settings put global lid_behavior 0 but it didn’t. I confirmed, that the setting exists in Android source code. Maybe Fairphone can follow Stock android here allowing this work around for all of us? This doesn’t require a better tuned sensor or deactivating the setting for everyone, or building a settings UI for this. Just revert whatever you changed to align with Stock Android. Thanks! And in future phones put some shielding against the fields on the back side, so that the sensor is only triggered by magnets on the front.)
I have the same issue, but I own a Bark case with MagSafe insert. I only have this issue with the case on my MagSafe mobile car holder in portrait mode, in landscape, the issue is gone.
Also, I noticed, when I place my phone beside a magnetic cable holder on my computer desk and it gets close to the fingerprint sensor integrated power button, it will turn off the display immediately.