Android edge swipes not working after an update?

After an Android update, swiping in from the left or right edge may stop going back, opening a panel, or switching apps. The cause might be a changed navigation setting, an app that handles edge gestures differently, or a section of the touchscreen that is not registering your finger.

Start by checking whether touches register near the edges. The Touch Screen Test shows touch points and can help you spot areas that miss contact. It cannot trigger Android's Back or Home gestures, so use it to check the screen, not to prove that system navigation works.

Check the screen near its edges

Open the Touch Screen Test on the Android phone with the problem.
Touch the center of the screen and move your finger slowly. Check that the test shows the touch point as you move.
Repeat near the left, right, and bottom edges, staying just inside the visible screen. Try a slow line and a short swipe in each area.
Repeat the same movements after removing the case, if it covers or presses against the display edge. If you use a screen protector, test without it only if you can remove it safely.

Keep a note of which edge and area misses contact. Android may take over a gesture that starts at the very edge, so a missing point at the outermost few pixels does not by itself prove the screen is faulty.

What the result means

The touch point disappears in the same area

That area may not be registering touch, but first rule out a case, protector, moisture, or dirt. Retest slightly farther inside the screen. If the same strip still misses touches in multiple apps, see how to check for touchscreen dead spots.

Touch points appear, but Android does not respond to the edge swipe

The touchscreen is registering contact in the test. The likely issue is the system gesture setting, gesture sensitivity, or an interaction with the app. The test page cannot tell whether a swipe triggered Android's Back or Home action.

Swipes fail in just one app

The screen and system navigation may be working. That app could have changed its own edge controls, or the update may have affected the app. Check it in another app and look for an update or a gesture option inside the affected app.

Swipes work after removing the case

The case may cover the swipe area or press on the screen edge. Try a case designed for your phone model, and check whether the screen protector is lifting or overlapping the display.

How to fix edge swipes

Remove anything covering the edge. Take off the case and wipe the screen with a clean, dry cloth. Retest before changing settings. Do not press hard on the display.
Check the navigation mode. On many Android phones, open Settings › System › Gestures › System navigation or Settings › System › Navigation mode. Choose gesture navigation if you want to use edge swipes. Menu names vary by Android version and manufacturer. On Samsung phones, look under Settings › Display › Navigation bar.
Adjust gesture sensitivity. If gesture navigation is already selected, open its options and look for edge sensitivity. Raise it one step and test again. On some Samsung phones, gesture options are under Settings › Display › Navigation bar › More options. If the setting is not available on your phone, skip this step.
Restart the phone and check for another update. A restart can clear a temporary input problem. Then check Settings › System › Software update, or your manufacturer's update screen, for a follow-up fix.
Check whether one app is causing the problem. Update the app, then close and reopen it. If it still fails only in that app, open its settings and look for edge gestures or swipe controls. On many Android phones, you can clear temporary app data at Settings › Apps › [app name] › Storage & cache › Clear cache. The path varies, and do not choose Clear storage unless you are prepared to erase the app's saved data.
Check touch sensitivity options. Some phones have a screen protector or touch sensitivity option under Settings › Display. Try changing it only if your phone provides it, then repeat the screen test and the edge swipe.

When it may be a hardware problem

A browser test can point to a missed-touch area, but it cannot diagnose the digitizer, the layer that detects finger contact. A hardware issue is more likely if the same part of the screen misses touches after you remove the case, restart the phone, and test in more than one app. Cracks, a recent drop, or a touch area that fails regardless of orientation are further clues.

If the phone is under warranty, record where touches fail and contact the manufacturer or seller before attempting a repair. If the failure persists across the screen and apps, a repair shop can check the display assembly. A factory reset is not a sensible first step for a small edge area that does not register touch.

Why the browser test and Android gestures differ

Android handles system navigation gestures before a webpage can receive some edge swipes. The browser may show a point for a touch a little farther in, while a gesture from the extreme edge is reserved for Back or another system action. That is why the test is useful for checking touch registration, but it cannot confirm that Android's navigation gesture is configured or behaving correctly.

Compare the screen test with the same swipe in another app, then use the navigation settings to check the system gesture separately.