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Galaxy S7 Power Saving Mode questions and answers, other issues

Some Samsung device users may have heard of Galaxy S7 power saving mode but some may don’t have any clue what it is or how it works. In this post, we try to answer some of the questions posited by one of our readers. We also include other #GalaxyS7 issues so we hope that reading this article may be worth your while.

Galaxy S7 power saving mode
Galaxy S7 power saving mode
  1. Rooted Galaxy S7 won’t turn on
  2. Galaxy S7 Power Saving Mode Questions and Answers
  3. AT&T update for Galaxy S7 causing text messaging to stop working intermittently
  4. Galaxy S7 “Unfortunately, Settings has stopped” error after an update
  5. Unlocked T-Mobile Galaxy S7 has very slow mobile data when connected to Vodafone network

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page, or you can install our free app from Google Play Store.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.


Problem #1: Rooted Galaxy S7 won’t turn on

A few weeks ago, I rooted my phone to remove some apps that I never used. I just kept using my phone as always and did nothing special except removing those apps. Today I decided to unroot my phone because I felt it would be safer in case anything should happen to it. It’s only 3 months old and I didn’t want to lose my warranty. I opened the SuperUser app and clicked full unroot and clicked continue. My phone instantly returned to the home screen and then powered off. Then it turned on again, but now the message “Samsung Galaxy S7 powered by Android” keeps flashing. I went into recovery mode and tried wiping the cache first, but nothing changed. Then I wiped all my data (*cries silently*) and did a factory reset, but my phone keeps flashing and won’t turn on. I’m really desperate and don’t know what to do because I’m afraid I can’t take it to my retailer because my phone is rooted (if it still is rooted, but I have no idea). What should I do?

(Before I wrote this email I could turn it off using volume up/down, home button and power button, but now it won’t turn off either… and I can’t pull out the battery of course.

With kind regards. — Erlynn

Solution: Hi Erlynn. This is an issue that concerns a third party app, apparently one that modifies official Samsung/Google software, so there’s really nothing much that we can do to help. We recommend that you contact the developer of the app you used so they can provide direct support. Make sure that you give them a detailed description of the problem as possible to ensure that they understand what’s happening. You also would want to provide a full history of software changes on your device so they can determine other factors that may have caused their software to fail.

You can get the email of Superuser developer team by visiting their info page in Google Play Store.

Problem #2: Galaxy S7 Power Saving Mode Questions and Answers

I read your article: Samsung Galaxy S7 Power Saving modes and how to extend its battery life. I am looking for more info about the App Power Saving feature on my new S7. I continue to get an icon message every couple of days indicating something like save power by shutting down apps you are not using. It looks like many of my installed apps are set to save power and may not receive notifications. Does this feature just disable the push and update functions of the app until I click on its icon and open it? How frequently do pushes actually occur on these apps and how much power am I actually? Will I miss updates such as expiring trial periods, etc on apps like Spotify and Amazon Prime, if these apps are off?  Will I miss bonus updates on apps such as my Regal Cinemas if it is turned off?

Is an opened app turned off when I click on the bottom left windows button and close all, or is it still running in the background? Do I need to close it another way?

Also, how do you perform a soft reset on an S7, as I believe it does not have a removable battery?

Thank you for your attention to these questions. — Chris

Solution: Hi Chris. Let’s answer your questions one by one.

Does this feature just disable the push and update functions of the app until I click on its icon and open it? Samsung’s Power Saving Mode is a streamline method of turning off other features that usually drains the battery faster. If you enable Power saving mode, you have 3 specific options that you can turn on or off:

  • Restrict background data
  • Restrict performance
  • Greyscale mode

If you enable Restrict background data option, this will prevent all apps running in the background to use mobile data connection to sync or receive updates. This means that apps like social networking apps will not receive new updates unless you manually ask them to.

How frequently do pushes actually occur on these apps and how much power am I actually? The answer depends on the app. Some apps allow users to set sync frequency. If you can’t find any option to let you know that, contact the developer.

Will I miss updates such as expiring trial periods, etc on apps like Spotify and Amazon Prime, if these apps are off? Will I miss bonus updates on apps such as my Regal Cinemas if it is turned off? Again, if you select the Restrict background data option, these apps would not normally be able to get updates from their respective servers. That means they will fail to notify you of real time promos and other time-sensitive information unless you happen to use them actively when such information are pushed.

Is an opened app turned off when I click on the bottom left windows button and close all, or is it still running in the background? Do I need to close it another way? By “bottom left windows button” we think you are referring to the Recent Apps button. As the name suggests, tapping on this button pulls up a lineup of the apps you opened not too long ago. Some of the apps may or may not be running in the background. If you want to know which apps or services are running in the background, do the following:

  • Go to Settings.
  • Proceed to Applications.
  • Select Application Manager.
  • Swipe to the right to select Running.

If you want to disable a particular running app, select it and tap on STOP button.

How do you perform a soft reset on an S7, as I believe it does not have a removable battery? To perform a soft reset on a Galaxy S7, kindly follow these steps:

  • Press and hold the Power (located on the right edge) and Volume down buttons (located on the left edge) for 12 seconds.
  • Use the Volume down button to scroll to the Power Down option.
  • Press the Home key to select.

 

Related reading: Samsung Galaxy S7 Power Saving modes and how to extend its battery life

 

Problem #3: AT&T update for Galaxy S7 causing text messaging to stop working intermittently

Hello. Approximately a week ago I had the Samsung Galaxy S5 and after receiving multiple AT&T software updates my messages sporadically stopped working.

For example, I would be texting multiple people and getting texts back but then with no warning every single one of my messages would disappear and I wouldn’t be able to send or receive text messages. I would have to restart my phone to be able to send/receive messages again every time this happened and it was getting to be at least 4 times a day.

AT&T tried putting a new SIM card in my phone, it didn’t help.

Best Buy Samsung reps tried hooking it up to their computer and checking it, didn’t help.

So, I thought maybe the S5 was just dying and went and traded in for a BRAND NEW Galaxy S7 last night.

Much to my disappointment, this afternoon my new S7 did the same thing with my messages! It also installed the new AT&T software update last night so the only thing I can think of is it’s some issue with the software update.

Do you know how I can fix this? Thanks in advance! — Ashleigh

Solution: Hi Ashleigh. If the only change you did before noticing the problem again was to install AT&T update, you can safely assume that the said update is buggy. You have to let AT&T know of this problem so they can, in turn, let the proper department know of this trouble. We are not aware of this issue happening on Galaxy S7 devices from other carriers so this may be isolated to the latest AT&T update for their own S7s.

As far as troubleshooting is concerned, there are only two things that you can do on your end — wiping the cache partition and performing a factory reset. These two solutions are only effective if the source of the problem is either due to a bad cache, or a glitch that may have developed after some time. If the issue is poor firmware coding, there’s really nothing that you can do. You must report the issue to your carrier so they can act on it.

For reference, these are the steps on how to wipe the cache partition or do a factory reset on your S7:

  • Turn off your Samsung Galaxy S7.
  • Press and hold the Volume Up, Home and Power keys together.
  • When the device powers on and displays ‘Power on logo’, release all keys and the Android icon will appear on the screen.
  • Wait until the Android Recovery Screen appears after about 30 seconds.
  • Using the Volume Down key, highlight the option, ‘wipe cache partition’/ ‘wipe data/factory reset’ and press the Power key to select it.
  • Press the Volume Down button again until the option ‘Yes — delete all user data’ is highlighted and then press the Power key to select it.
  • After the reset is complete, highlight ‘Reboot system now’ and hit the Power key to restart the phone.

Problem #4: Galaxy S7 “Unfortunately, Settings has stopped” error after an update

Hi, I’m facing the “Unfortunately, Settings has stopped” problem. It all started when I upgraded Android. Anyway, once I upgraded, I did a factory reset. After the reset process was complete & setting up the phone, I connect it to my Wi-Fi & as I sign-in to my Google account to start downloading apps from the Play Store. The Play Store & Play Services gets updated automatically, as usual, and as I go to Settings>Account & click my ‘Google’ account to see whether it’s done syncing, the Settings app just closes & says “Unfortunately, Settings has stopped”. Because of this problem, I’m not able to sync my Google account at all.

And also, this happens before I even download any apps from the Play Store. When this same problem happened to my friend’s Galaxy Note 3, which is running on ‘Lollipop’, I knew that I wasn’t alone because the same, exact problem happens to his phone, too. So, I guess this all happened after upgrading. Hope you guys can help me out. Thanks. 🙂 — Denham

Solution: Hi Denham. We’ve seen this issue happening in some rooted devices (not necessarily Samsung) and those running with custom or modified firmware. If you rooted your phone, or if your S7 has a custom (non-official) Android operating system, consider removing root or installing stock firmware first before attempting another log in. This is the only effective solution that we know so far

Problem #5: Unlocked T-Mobile Galaxy S7 has very slow mobile data when connected to Vodafone network

The issues are the following. I got the phone from US T-Mobile and unlocked it. Was using the phone abroad for a while and no issues with internet. Now currently in Germany and using the phone with Vodafone. The internet is slow eventhough i have bought the fastest available package. My sister has the same provider on an iPhone 5S and her internet is lighting fast. Internet is normally 4G but now is E(Edge). After i go to settings data connectivity and I i turn the internet off/on, it fixes for a certain amount time. I get the 4G sign and internet gets a little better but after some 15-20 minutes it goes back to E(Edge). Is there anything i can do to get better connectivity on my phone.

Please advise. Thanks. — Sasho

Solution: Hi Sasho. If your S7 does not remain connected to a 4G network, there are only two possible causes for the issue. It’s either a problem with the phone itself, probably  software or hardware in nature, or your carrier in Germany has some problems. The first thing that you want to do is wipe the cache partition (steps provided above). If that won’t fix it, try to observe the phone while in safe mode to see if a third party app is to blame. To boot your S7 in safe mode, kindly do these steps:

  • Turn off the phone.
  • Press and hold the Volume Down and Power keys for 20 to 30 seconds.
  • Once you see the Samsung logo, release the Power key immediately but continue pressing the Volume Down key.
  • Your phone should continue booting up and you will be prompted to unlock your phone as usual.
  • You will know if the phone successfully booted in safe mode if the text “Safe mode” is displayed at the lower-left corner of the screen.

If the issue won’t occur while in this mode, that’s a confirmation that one of your apps is causing this mess. Uninstall apps starting from the most recently installed to isolate and eliminate the problem.

If the issue persists even while in safe mode, consider performing a factory reset. Once you’ve done the reset, observe the phone again without installing any apps. If nothing changes, call Vodafone and ask them for support.

 

 


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