LG phone proximity sensor not working — what to check first (safe steps)
Steve H.
Reviewed for technical accuracy
Specialities: LG proximity sensor not working, screen stays on during calls, screen goes black during calls, accidental taps, pocket mode issues.
LG proximity sensor problems: common reasons + what to check first (case, screen protector, dirt, settings, Safe Mode)
Technician
We’ll do the safest checks first. I don’t want you changing a bunch of settings or pressing anything that could make the phone harder to use.
Quick questions so we don’t guess:
• Which LG model do you have (V60, G8, Velvet, Stylo, Wing, etc.)?
• What’s your symptom: screen won’t turn off, screen won’t turn back on, or it keeps flickering on/off?
• Did this start suddenly or after an update, new screen protector, or a new case?
Technician
First, a gentle check: do you use speakerphone or Bluetooth earbuds on calls? On many Android phones, the proximity sensor behavior can be different with speaker/Bluetooth, so I don’t want us to chase the wrong thing.
Also: any new screen protector or a thicker case recently?
Technician
The proximity sensor sits near the top of the phone. A protector that’s slightly misaligned, has an extra dark area, or has tiny bubbles near that spot can confuse it. Dirt or skin oil in that area can do the same.
Trust moment: I don’t want you peeling anything off yet. First we’ll confirm with low-risk checks so you don’t waste a protector if it’s not the cause.
When you’re on a call (not on speaker), if you cover the very top edge of the screen with your palm for 2 seconds, does the display change at all?
Technician
Next safest check: let’s rule out “something is blocking it” without changing your phone setup.
• Wipe the top front area of the screen gently with a clean, dry microfiber cloth.
• If you have a case with a raised lip, make sure it’s not sitting over the top edge of the screen.
Trust moment: Please don’t use liquids or sprays near the top speaker/sensor area. We want to avoid moisture getting inside.
Technician
Safe “no regret” questions:
• Does the problem happen in the Phone app only, or also in other situations (for example, does the screen turn on in your pocket — “pocket mode” problems)?
• Do you use any call-related apps (spam blocking, call recording, accessibility tools, screen dimmers)?
Technician
The safest way to check that (without deleting anything) is a Safe Mode test. Safe Mode temporarily disables third-party apps, so we can see if the LG proximity sensor problem is caused by an app or by the system/hardware.
Trust moment: We’re not factory resetting. We’re not erasing photos. This is only a test.
Technician
Before we even do that, one more easy check: during a call, does your screen behave differently if you remove the case and slightly tilt the phone away from your face? Some protectors/cases affect the sensor angle.
If you’d like, there are also related guides in this hub that cover other common phone issues, like Android phone charging very slowly and Android phone battery drains overnight.
Technician
Here’s what we’re trying to figure out (without jumping to conclusions):
• If Safe Mode improves it, a third-party app is likely interfering (common after updates).
• If Safe Mode changes nothing, we focus on sensor blocking (protector/case/dirt) or a hardware sensor that’s not reporting correctly.
Another safe clue: if the screen stays on during calls, do you also notice the auto-brightness acting oddly, or is it only the proximity behavior?
Technician
If Safe Mode shows improvement, we’ll identify the most likely app category (cleaners, call overlays, accessibility, screen dimmers). If there’s no improvement, then the next step is usually a simple “physical check” decision: does removing the screen protector temporarily change the behavior — but only if you’re comfortable doing that.
If you want more reading later, these are also common senior questions: Android phone consent screen confusing and Android phone camera shows black screen.
Technician
Hardware becomes more likely if the proximity sensor never reacts in any app or test, Safe Mode doesn’t change anything, and the symptom is consistent (every call, every time). If it’s inconsistent (sometimes works, sometimes not), it’s more often blocking, software, or an app conflict.
For now, your next “best evidence” step is: test one call in Safe Mode and note exactly what happens. If you come back with that result, we’ll know the safest next move.
Quick answer: the accepted fix
Accepted first fix for an LG phone proximity sensor not working issue: rule out simple blocking (protector/case/dirt) and app interference (Safe Mode) before assuming hardware.
What usually helps most (safe checks):
• Remove the case and re-test a call (some cases/protectors block the sensor area).
• Gently clean the top front of the screen with a dry microfiber cloth (no liquids near the earpiece).
• Test one call in Safe Mode to rule out third-party apps (cleaners, call overlays, accessibility tools).
• Check whether the issue happens only in calls or also as “pocket touches” (this points to proximity behavior).
• If nothing changes and the sensor never reacts, consider a careful screen protector check or professional inspection.
Why an LG proximity sensor stops working (and why it can start suddenly)
Most “sudden” LG proximity sensor not working cases come down to something simple: a new screen protector, a case lip covering the top edge, skin oil/dust near the sensor area, or a call-related app changing how the phone behaves. It can also begin after a software update when the dialer or call screen changes. If the screen stays on during calls, you can get accidental taps. If the screen goes black during calls and won’t wake, the phone may think it’s still against your face.
What to check first: screen protector, case, call settings, and Safe Mode
Start with low-risk comparisons. Test a call with the case removed. Look closely at the top of the screen for a misaligned protector or bubbles near the sensor area. Clean the top front with a dry microfiber cloth. If the issue started after installing a “cleaner” or call-related app, test one call in Safe Mode to see if the problem disappears. This approach helps separate a software/app issue from a sensor or screen assembly problem.
LG proximity sensor troubleshooting — calm, senior-friendly guidance
Most proximity sensor issues are caused by a screen protector, case interference, dirt near the sensor area, or an app conflict after an update.
Best approach: change one thing at a time. Start by removing the case and testing a normal (not speaker) call. Gently clean the top front of the phone with a dry microfiber cloth. If the problem began after a new app or update, test one call in Safe Mode so we can rule out third-party apps without deleting anything. Only after those checks should you consider removing a screen protector or seeking hands-on inspection.
Disclaimer: This information is AI-generated and intended for general guidance only. Avoid making multiple system changes at once. For device-specific steps, consult a verified expert on Whizz-Tech or the manufacturer’s support before making decisions.
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FAQ
Why did my LG proximity sensor stop working suddenly?
This often starts after a new screen protector, case change, or a software update. The sensor area can be partially blocked by bubbles, misalignment, dust, or skin oil. Some call-related or “cleaner” apps can also interfere with call screen behavior. A Safe Mode test helps separate an app issue from a sensor issue.
My LG proximity sensor isn’t working after an update — what should I check first?
Start with the simplest checks: remove the case and test a normal call (not on speaker). Gently clean the top front of the screen with a dry microfiber cloth. Then test one call in Safe Mode to rule out third-party apps. If it improves in Safe Mode, an app conflict is likely.
Is this a hardware problem or just a setting?
If the sensor never reacts in any situation and Safe Mode changes nothing, hardware becomes more likely. If it’s inconsistent, it’s more often blocking (protector/case) or software/app behavior. Speakerphone and Bluetooth can also change how the screen behaves during calls. Checking one factor at a time is the safest way to tell.
Can I fix an LG proximity sensor issue without service?
Often, yes — especially if the cause is a screen protector, case interference, or dirt near the sensor area. Safe Mode testing can identify third-party app conflicts without deleting anything. If removing the case and testing in Safe Mode doesn’t change the problem, you may need a careful protector check or professional inspection. Avoid using liquids or sharp tools near the earpiece/sensor area.
Sources
- LG User Guide (PDF) — Note on screen protectors/accessories interfering with sensors
- Google Support Community — Safe Mode as a diagnostic step for proximity sensor issues
- Samsung Support — Common causes and basic checks for proximity sensor problems
- Google Support Community — Screen protector/case interference during calls
Filed under: Sensors & Permissions
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