1. kjjb0204's Avatar
    Doesn't seem to be any specific place where I can put my phone in relation to my face to make the display shut off. I end up hanging up, requesting video call, etc. with my cheek while on a call. Anyone know where the proximity sensor is in the base S21?
    02-10-2021 09:02 AM
  2. B. Diddy's Avatar
    It's at the top of the display. See this: https://forums.androidcentral.com/e?...token=FvpXaZEi

    Does the same thing happen in Safe Mode? https://www.hardreset.info/devices/s...tra/safe-mode/
    02-10-2021 11:44 AM
  3. kjjb0204's Avatar
    It's at the top of the display. See this: https://forums.androidcentral.com/e?...token=PaV64-S1

    Does the same thing happen in Safe Mode? https://www.hardreset.info/devices/s...tra/safe-mode/
    Happens in safe mode as well.
    02-10-2021 12:10 PM
  4. B. Diddy's Avatar
    I'd be concerned about the sensor being faulty. Something like this wouldn't be due to a poorly fitting screen protector, since that would be more likely to cause the screen to blank out immediately upon making a call (even without the phone against your ear), rather than the other way around. As far as I can tell, the more recent Samsung phones don't have an option to disable the sensor.
    @mustang7757, anything I'm missing?
    Rukbat likes this.
    02-10-2021 12:16 PM
  5. kjjb0204's Avatar
    I'd be concerned about the sensor being faulty. Something like this wouldn't be due to a poorly fitting screen protector, since that would be more likely to cause the screen to blank out immediately upon making a call (even without the phone against your ear), rather than the other way around. As far as I can tell, the more recent Samsung phones don't have an option to disable the sensor.
    @mustang7757, anything I'm missing?
    Right, I'm pretty sure there's no option to disable, which I wouldn't want to do anyhow. I guess I'll have to try removing the screen protector anyhow and see if that makes a difference.
    02-10-2021 12:29 PM
  6. kjjb0204's Avatar
    It's at the top of the display. See this: https://forums.androidcentral.com/e?...token=lAsxGbYL

    Does the same thing happen in Safe Mode? https://www.hardreset.info/devices/s...tra/safe-mode/
    That first link takes me to a Verizon Fios landing page.
    02-10-2021 12:29 PM
  7. mustang7757's Avatar
    I'd be concerned about the sensor being faulty. Something like this wouldn't be due to a poorly fitting screen protector, since that would be more likely to cause the screen to blank out immediately upon making a call (even without the phone against your ear), rather than the other way around. As far as I can tell, the more recent Samsung phones don't have an option to disable the sensor.
    @mustang7757, anything I'm missing?
    I agree check with screen protector or case , but also try safe mode
    02-10-2021 12:30 PM
  8. B. Diddy's Avatar
    I agree check with screen protector or case , but also try safe mode
    OP already mentioned it still happens in Safe Mode.
    02-10-2021 12:31 PM
  9. mustang7757's Avatar
    OP already mentioned it still happens in Safe Mode.
    Ok sorry just cutting in didn't read what was done , then the screen protector try
    02-10-2021 12:34 PM
  10. mustang7757's Avatar
    Here's a thread discussing this topic, even though it's s20 fe might give clues.
    https://forums.androidcentral.com/sh....php?t=1012068
    02-10-2021 06:16 PM
  11. kjjb0204's Avatar
    Here's a thread discussing this topic, even though it's s20 fe might give clues.
    https://forums.androidcentral.com/sh....php?t=1012068
    Thanks for the link. Seems like some people are saying it's now a virtual AI-assisted proximity sensor, run by the software, and that there is no physical proximity sensor. Others think that's nuts and that it's still a physical sensor.

    While on a call, I just tested by holding the device away from my face and gradually sliding my finger across the top of the phone covering more and more space on the top. As soon as I covered the space between the camera and the wifi symbol, the phone shuts off. I slide my finger back a little bit, it turns on. Obviously the sensor is just to the right of the camera. I must be holding the phone away from my ear or something, it seems like it's working properly when I test it the way I described. If it continues I'll just factory reset and try again and see.
    02-10-2021 06:33 PM
  12. mustang7757's Avatar
    Thanks for the link. Seems like some people are saying it's now a virtual AI-assisted proximity sensor, run by the software, and that there is no physical proximity sensor. Others think that's nuts and that it's still a physical sensor.

    While on a call, I just tested by holding the device away from my face and gradually sliding my finger across the top of the phone covering more and more space on the top. As soon as I covered the space between the camera and the wifi symbol, the phone shuts off. I slide my finger back a little bit, it turns on. Obviously the sensor is just to the right of the camera. I must be holding the phone away from my ear or something, it seems like it's working properly when I test it the way I described. If it continues I'll just factory reset and try again and see.
    Your welcome, it sounds like you have a proximity sensor, let us know your findings.
    kjjb0204 likes this.
    02-10-2021 07:49 PM

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