Hello, I have a Fairphone 3+ which I pre-ordered. It runs Android 10, and I haven’t used another OS on it. Every day, I use my FP3+ to read in bed, with lights in the room turned off. This results in a very low, constant light level. I live in the countryside and don’t have car headlights shining …

Hi welcome to the furm [image] gr3821: short of a very dim, flickering LED or two That could stir the auto setting, though you also say [image] gr3821: . . . and it even occurs if I’m under the covers, I’m curious about the randomness, I have noticed that certain apps I use can go in…

Thanks for your response and suggestions. When I mentioned the LED lights, I was speaking only in terms of their contribution to the limited bouncing ambient light in the room; they’re not directly visible from my position in bed, and the phone sensor would be turned away from them. But maybe the s…

I have experienced the same, so I’ve stopped using this feature because it was too annoying. Now that I read this thread, I realize that there are apps that do this adjustments as well. I will try them.

Hello, Apologies for the delay; several evenings this week I didn’t read long enough to notice if disabling notifications or enabling Aeroplane mode had any effect. I’ve now tried with both of these individually and neither seem to work. First, I tried with DND enabled and notifications set to ‘N…

I noticed the same since I got the FP3+ last year. And I can confirm that it has nothing to do with notifications, DND, or apps controlling the brightness. My theory is that reflexions on the glass, covering the sensor, are triggering that behavior. But just a guess.

You can test your theory by covering the sensor and see if it still changes. You could try putting a thin translucent piece of tape over the sensor that would deflect light.

[image] anon9989719: You can test your theory by covering the sensor and see if it still changes. You are right. If the sensor is covered, the auto-brightness is not decreasing anymore without reasons. So it seems, that just very little amount of light, reflected in a disadvantegeous way, can…

You can buy translucent tape with ridges that will deflect light from many angles, it’s often for bandages. I’m not sure if this is the one I have had for years https://www.clinisupplies.co.uk/products/24/CliniTape-CLEAR-Surgical-Tape

The idea of the tape is to diffuse the light so that any brightness that may suddenly arise to the side will be diffused and partially redirected and reflected. It’s only an idea but you could try something similar. I have found the old tape I have, some 20 to 30 years old :slight_smile: [tape]

Apologies for the delayed response. Thank you, @ontheair and @anon9989719 , for your suggestions. I’ll look into that translucent ridged tape and see if I can get any. Meanwhile, I’ll try covering the sensor with some regular opaque tape and see if it helps at all.

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FP3+ Auto-brightness: display brightness suddenly increases despite no change in light levels

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