In a smartphone beauty contest, the Samsung Galaxy S7 Edge would be extremely tough to beat. It’s not just a pretty phone, though. It’s also powerful and feature-packed, but it’s not perfect.
We’ve been digging around to see what Galaxy S7 Edge problems are cropping up most often online. We’ve identified a few issues here, and we’ve got ideas on how to fix them or work around them. The first thing you’ll want to do, to safeguard that slippery, fragile, fingerprint-prone glass, is to snag one of thebest Galaxy S7 Edge cases.
Glitch: Fingerprint scanner not working
Sometimes, you may find that your S7 Edge suddenly stops recognizing your fingerprints and you have to input your PIN or password to gain access. There’s no obvious cause for this. You may also find that entering new fingerprints doesn’t work. Here’s what to do:
Potential solutions:
Problem: Horizontal gray translucent lines
A few people have reported a series of three or four gray translucent lines appearing horizontally on their S7 Edge screen. Unfortunately, this seems to be a hardware fault with the display.
Workarounds:
Issue: S7 Edge keeps freezing or restarting by itself
A number of people have been frustrated by their S7 Edge freezing or restarting itself seemingly at random. There are a few different potential causes for this, so here’s what to try:
Problems with screen, notifications, bloatware, and more
Problem: Screen turning on randomly
A few people are reporting a problem where the S7 Edge screen turns on seemingly at random. There’s no incoming call or message, and no notification, the screen just comes to life by itself. you’re able to choose to have the display always on with the time and basic info viaSettings > Display > Always on display, but what we’re talking about here is the screen coming to life as though you had tapped thePowerbutton. There are a few reasons that this might happen.
Possible solutions:
Glitch: No notification sounds
Some S7 Edge owners are missing incoming messages because there is no alert or notification sound, whether it’s text messages or emails. If it’s happening to you, here’s what to try:
Workaround:
Possible fixes:
Issue: Fast wireless charging is slow
You should be able to use fast wireless charging on your S7 Edge to fully charge your phone in around two and a half hours. It’s not as fast as the top speed you’ll get with a cable, but it’s pretty good. However, some people are finding that wireless charging is taking four hours or more.
Problem: Bloatware
The scale of your bloatware problem with the Galaxy S7 Edge will depend on which carrier you’re with and whether you feel that any of the preinstalled apps are actually worthwhile. Samsung still hasn’t shaken the habit of replicating perfectly good Google apps, and you’ll find that every carrier includes a number of often useless applications.
Glitch: Overly sensitive touchscreen and buttons
A lot of people are finding that the touchscreen and the touch navigation buttons below it are simply too sensitive. This results in accidentally launching apps or selecting things when handling the phone. Some people are also complaining about mistyping, because even hovering over a portion of the screen is enough to make a selection.
Potential solution:
Problems with overheating, MicroSD cards, lag, and more
Issue: Overheating
There have been reports of overheating, with a number of new owners saying that their Galaxy S7 Edge is getting uncomfortably warm. It’s worth remembering that new phones will tend to get unusually hot the first day or so, simply because you’re downloading and installing a bunch of apps and games. You’re also probably using the phone a lot. Wait until everything is installed and updated before you judge whether there’s an overheating problem.
Problem: No adoptable storage on MicroSD card
Google added something called “adoptable storage” into Android 6.0 Marshmallow, which allows the internal memory and a MicroSD card to be effectively merged. Samsung chose not to support it, arguing that people want to be able to use their MicroSD cards to transfer files between their phones and other devices.
If you do want to merge your MicroSD card and use adoptable storage, then you’ll be glad to know it is possible, if a little fiddly. This method was posted byPaul O Brien at MoDaCo. Use it at your own risk.
Glitch: MicroSD card pop-up
A lot of S7 Edge owners have complained about a persistent SD card pop-up, which says “SD card, For transferring photos and media” with the option toExploreorEject. It can be swiped away, but it will return after every reboot, and for some people, it just keeps popping up, seemingly at random.
Issue: Lag and stutter
The Galaxy S7 Edge is a fast smartphone with cutting edge specs, so you may reasonably expect lightning fast performance, but there are reports of some lag and stutter. A lot of people are blaming Samsung’s TouchWiz user interface, but others are claiming that performance is silky smooth for them. There are a few things you may try to combat lag.
Bug: Home and multitasking buttons not working
We’ve seen a few reports about theHomeand theRecent appsorMultitaskingbuttons not working. They’ll work as normal, most of the time, but occasionally fail. TheBackbutton continues to work properly, but some people are finding that theHomeandRecent appsbuttons are just randomly unresponsive.
Problems with touch, voicemail, screen, and more
Glitch: Phantom touches on screen
Quite a few people have reported ghost or phantom touches on the S7 Edge screen. It’s very easy to accidentally touch the screen when handling the S7 Edge, but for some people apps are opening uninvited and the cursor is jumping around unexpectedly, even when they’re not touching the phone. This could be related to the overly sensitive touchscreen problem, but if you’ve tried changing the way you hold the S7 Edge or putting a case on and the problem remains, then there are some other things you’re able to try.
Annoyance: Voicemail icon won’t go away
If you get a new voicemail message on your S7 Edge a notification will pop up and you’ll get the wee voicemail icon in the notification bar. Sometimes you dial in and listen to the voicemail, then save or delete it, but when you return to your home screen the voicemail icon is still there and it stubbornly refuses to go away. Sometimes there’s just a delay in the icon going away, but it can be very annoying if it sticks around. Don’t worry, you can get rid of it.
Problem: Purple, pink, or green lines or blotches on screen
A number of S7 Edge owners have had trouble with strange blotches or vertical lines of color appearing on the display. Green or pink spots and purple vertical lines seem to be especially common, but some people report other colors.
Issue: Screen overlay detected
A lot of people are getting frustrated at a pop-up message that says “Screen overlay detected”. This issue is related to floating apps that are able to draw on top of other apps, things like Facebook Messenger or Twilight. You might get the error if one is running and you try to start another with the same permission.
Annoyance: Won’t charge because of moisture detected
If you get your S7 Edge wet and then find that it won’t charge, don’t worry, it’s a safety precaution. You should get a message about moisture being detected, but it doesn’t always appear. If you find your S7 Edge won’t charge when you plug it in and it has taken a dunk recently there’s a good chance that’s the issue. NOTE: if you got it wet with saltwater or another liquid, then verify you rinse it with fresh water before drying to avoid lasting damage.
That’s all the Galaxy S7 Edge problems we’ve found so far, but check back because we’ll be adding more as and when we discover them. If you have any issues or solutions you’d like to share, please post a comment.
Article originally published on 08-08-2025. Updated on 06-07-2025 by Simon Hill: Added problems with fingerprint scanner, horizontal lines, and freezing or restarting.
