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How To Fix Mobile Data Problems On Your Galaxy S7

Posted by William Sattelberg on July 28, 2018

Though rare, there may be some moments where your Galaxy S7 or S7 edge has problems connecting to your carrier to receive mobile data. Though occasionally due to dead zones in your area, occasionally mobile data issues are linked to your specific device, not the quality of your network or where you are on the map. Obviously, receiving mobile data is one of the most important parts of your phone, since it’s used for nearly every function, including navigation or hailing a ride-sharing service. Though there isn’t one single solution to fixing mobile data, there are steps you can take to reset and toggle your mobile data into responding. We’ve gathered them into one single guide below, from the simplest solutions to more complex instructions that will restore data back to your phone.

Some of these tips can be done anywhere, but for the latter guides, it’s best if you’re connected to WiFi and able to back your phone up to the internet. With that out of the way, let’s get started fixing your Galaxy S7’s WiFi.

Simple, Quick Tips to Fix Your Data

These are some of the basic ways to fix any problems with your phone that spring up from time to time, including a lack of data connectivity. Though not all of these will work, it’s worth testing these out. These instructions are fast and easy to do anywhere, and only take a few moments of your time.

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First, start by diving into your settings menu, either by launching the settings app from your app drawer or by using the shortcut saved in your notification tray. If you’re using the standard settings layout, tap “Data Usage” under the category “Wireless and Networks.” If you’re using the simplified layout, tap “Connections,” followed by “Data Usage.”

Either method will bring you to the same data usage display. Under “Mobile,” you’ll see a switch for mobile data. Make sure that switch is enabled; if it’s not, your mobile data may have accidentally been turned off in settings. Once you’ve re-enabled mobile data, you should be able to use your device as normal again.

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If your mobile data is already enabled but you aren’t receiving a connection, try disabling and re-enabling mobile data by turning the switch on and off, waiting a moment between the flip. This can recycle your cellular connection and reestablish a link between you and your carrier. If you still aren’t able to connect or load any data over the internet, keep moving through this guide.

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Check to see if you’ve accidentally enabled a mobile data limit. Tap on “Mobile Data Usage” under the “Mobile” subcategory, and then tap the settings gear in the top-right corner of the screen. On this display, you’ll see a few options, including the ability to set your bill cycle and receive data usage warnings. Check to make sure you haven’t set a mobile data usage limit on your phone. If you have, and you’ve passed the limit, your data connection may have been ceased by the phone’s settings. If you’re fine with continuing your mobile data usage, disable your limitation and you should begin receiving data again.

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Try uninstalling any recent apps from your phone. Some applications can modify or change the way your device operates, and it’s entirely possible that your phone has been modified in some way by a recent install of a malfunctioning app.

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Finally, restart your phone. It might sound a bit simplistic or too much of a cliché—and it is—but a restart can sometimes fix any temporary problems with your phone that may have been caused by an app change or some other small issue with the operating system. At the very least, you can say you did the most basic step to fixing any electronic device. You can also take this a step further, by powering down your device, removing and reinserting the SIM card from the SIM tray on the top of your phone, and rebooting your device.

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If none of this is working, it’s time to move on to some more complex solutions to your problem. Don’t leave that settings menu though—we’ve got a couple more steps to do there first.

Mobile Data Settings

Okay, first start by reopening your settings menu. This time, select “Mobile Networks” under “Wireless and Networks” on the standard settings menu or “Connections” under the simplified settings menu. From here, select “Network Mode” to change the type of network your phone is connecting to. This can depend on your carrier, but you should have a few different network connections to pick from, including Global (sometimes referred to as Automatic), LTE/CDMA, and LTE/GSM/UMTS. Typically, you should leave this selected on Global, which will allow your phone to select the best network for the job. If you’re on Verizon or Sprint, selecting the LTE/CDMA mode is your best bet to recycle your data connection. If you’re on AT&T or T-Mobile, try using the LTE/GSM/UMTS setting. This is all pretty unscientific, but in testing, your phone might be able to reestablish a connection to your mobile carrier.

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Typically, a Verizon or Sprint phone is going to experience difficulties on a LTE/GSM/UMTS setting, and same goes for AT&T, T-Mobile, and the LTE/CDMA setting, but there are occasions—like when you’re in an area that only has one type of data connection—where your phone will have to connect to a roaming carrier. Typically, Global or Automatic mode is best left to handle this, but cycling through these options sometimes allows a phone to pick the connection back up after being disconnected.

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If this doesn’t work, there’s one more setting you can access in the “Mobile Networks” menu. Select “Access Point Names,” or APN. Your APN settings tell the phone what network it’s connecting to and how to get there, almost like a map. Sometimes these settings can be changed or modified in a way that causes your phone to lose its connection with your network, and you have to change these settings back to default. Unfortunately, some networks—namely Verizon—block users from modifying these in any way. You can still view your APN settings by tapping on the name of the access point, but the option to add or edit an APN will be completely grayed out. In some ways, this prevents users from accidentally messing with their APN settings, which is good for the majority of Verizon’s customers. On the other hand, when you begin receiving network problems you can’t just jump in and modify your APN yourself, because it’s locked down for any and every user, and there’s no easy way to change this.

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Still, if you aren’t on Verizon, there’s a good chance you can change or edit these APN settings as you wish. You’ll have to look up network settings for your specific carrier, but most carriers put them online on their support sites, and you can find them by Googling “[Carrier Name] APN settings.”

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Resetting Your Galaxy S7

If you’ve tried everything listed above and you’re still experiencing difficulties fixing your mobile data connections, we may have to reset some settings on your device. I’m going to break this down into three options, from easiest to hardest to accomplish. These should only be done once you’ve tested every possible solution listed above, as they’re a bit more complex and wipe some information or data from the device. If you’re ready to continue, read on.

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Head back to your main settings screen, and find “Backup and Reset.” On the standard settings display, it’s under “Personal”; if you’re using the simplified settings menu, it’s under “General Management” and “Reset.” We’re going to be using all three of these settings in this part of the guide, one-by-one. It’s important that you understand each of these will reset part of your phone back to its default mode, so proceed with caution. If you need to, backup your phone’s settings using Google Drive or Samsung Cloud.

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Begin by resetting your settings; it’s the top option on your menu. This will just reset every setting on your phone back to default, but it won’t clear any of your data off the phone. Though there’s a low chance of this fixing your data, it will help reset any settings you may have accidentally changed without realizing, and it’s a good first step before continuing forward.

If you’ve reset your settings and you still aren’t seeing any changes on your device, the next step is to reset your network settings. This will clear every saved WiFi hotspot from your history, as well as any Bluetooth devices, so make sure to back up your settings before selecting this option. If there’s something wrong with your network settings that weren’t caught earlier in the guide, this move will help clear and reset any “damaged” options.

If you’ve come this far in the guide, and you still haven’t been able to restore a data connection between your phone and your carrier, there are only a couple options left: wiping your phone’s cache partition and factory resetting your Galaxy S7. We’re going to start with the easier of the two: wiping your phone’s cache. This won’t actually erase any data off your phone; rather, it wipes the part of your phone’s storage that stores cache. Cache is any temporary data saved by applications, and it can occasionally cause problems with your phone, including increased battery consumption or any other hardware-based problems. Wiping your cache partition isn’t actually done in settings; it’s completed by booting into your phone’s recovery menu and selecting that option.

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Start by powering your phone off. Once it’s completely powered down, press and hold the Home key, the Power key, and the Volume Up key at the same time. Hold these buttons down until “Recovery Booting” appears at the top of your device’s display. Your phone will display an screen that reads “Installing System Update” for 20 or 30 seconds, and the update will appear to fail. This is completely normal. After another few moments, the display will switch to a black display with yellow, blue, and white text. At the top of this screen, your display will read “Android Recovery, along with a bunch of text below it that contains hardware and software information for your device. The menu system is written in blue text, and is navigated by using the Volume Up and Down keys to scroll up or down, respectively. Scroll down to “Wipe Cache Partition” (it’s underneath the blue highlighted menu in this photo), and press the Power key to select the option. Confirm by selecting “Yes” with another press of your Power key. Your phone will begin to wipe the cache partition, which will take a few moments. Once the device is done, you’ll be returned to the main menu. Make sure “Reboot system now” is selected on your device, and press the Power key to confirm. Your device will reboot back into normal Android. Check to see if you have reestablished a data connection; if you haven’t, you’ll want to continue onto our next and final step.

Factory Reset Your Your Galaxy S7

For this final step, we’re going to be completely wiping your phone. This is a fairly-drastic measure, so it’s only recommended if you’ve tried everything else on this guide. You’ll also want to start by making sure your phone has some sort of backup, either through the cloud or on your computer. This will wipe the entirety of your phone, making it act like you just took it out of the box brand new. For your effort, however, this is also one of the most surefire ways to fix your mobile data connection; two months ago, I fixed my own phone by doing this after everything else on this list failed.

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So, assuming you’ve backed your phone up to the cloud and you’re ready to go, head into your settings menu and go back to the reset menu we covered in the last section. This time, you’ll be selecting the third option on the reset list, “Factory Data Reset.” The next screen will show you every account currently tied to your phone, as well as a list of settings and data that will be wiped from your device if you move forward. If you’re using an SD card for some of your data, anything on that card will not be wiped; however, if you wish, you can clear and reformat that card by checking the box at the bottom of the list of your accounts that reads “Format SD card.” Finally, make sure your device is either charging or fully charged; if your phone dies during this reset, it can permanently brick the phone.

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Tap the “Reset Phone” button to move forward. You may be asked to provide either your fingerprint or your pin/password to continue the operation as a security measure. Once you’ve confirmed the reset, the process will begin. All in all, it should take up to about half an hour to complete the process. Let your phone sit and reset until it reaches the “Welcome!” screen that displays when you first set up an Android phone. From here, you should be able to confirm whether or not your mobile data connection has been reestablished by checking the upload and download arrows in the status bar at the top of your phone. If you’re receiving data, those arrows should be lighting up when using any form of data. Continue through the setup on your device, and you should be able to load data as normal again.

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If these steps didn’t work for you, and your Galaxy S7 still cannot receive data even after a full factory reset, you’ll want to contact your cellular provider about your service. There are a few possibilities left: your hardware might have an internal problem stopping the phone from receiving data, or your SIM card might be broken or malfunctioning. These are problems that can only be fixed by contacting your carrier, so either call their 1-800 service line or, even better, head into a retailer where they can test your phone and SIM card in-person.

For most users, the steps laid out above should be enough to fix any mobile data issues, but if the problem is hardware-based, troubleshooting your software can only get you so far. Still, trying everything laid out above will come in handy if you have to head into your local Verizon or AT&T store: you can tell the service rep that you’ve already tried nearly every software trick imaginable.

One thought on “How To Fix Mobile Data Problems On Your Galaxy S7”

Ralph says:
Hi I read all your options and tried the factory data reset. But still my APN is greyed out and still “access is restricted for the current profile” I’m actually wondering why this happened to my phone. Actually 2 carriers I tried they have actually an option to send you their APN settings and install manually. And it install through since you can view it. But not on the APN settings. It kind of weird.
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