Unable to turn off Ultra Power Saving Mode on Galaxy S6 Edge, other issues


Since last year, we’ve been receiving Ultra Power Saving Mode (UPSM) issues so we think that the problem is still happening to some #GalaxyS6 and #GalaxyS6edge users. By covering this issue in this material, we hope that the solutions we provide will help those experiencing the problem.

Below is the complete list of issues covered in this post today:

  1. Unable to turn off Ultra Power Saving Mode on Galaxy S6 Edge
  2. New Galaxy S6 Edge keeps shutting down on its own
  3. Galaxy S6 Edge Plus Fast Charging and data transfer to PC problems
  4. Galaxy S6 Edge Plus in bootloop and won’t boot to recovery mode
  5. Recent Apps button not working correctly after an update

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: Unable to turn off Ultra Power Saving Mode on Galaxy S6 Edge

First of all, I didn’t put the Android version above because I can not get to that information on the phone, due to being locked in ultra power savings mode (UPSM). 


I have a Verizon Galaxy S6 Edge. I recently put it into ultra-power saving mode (UPSM). When turning off UPSM, it churned and churned, saying that it was exiting UPSM.  After an hour of this, I tried to close the phone down and it wouldn’t shut off. So I soft re-booted it. it came back up, still in UPSM, but there was no option visible that allowed for exit of UPSM. I accessed the cogwheel in the upper right, for settings, but there I only see seven settings:  Wi-Fi, Bluetooth, airplane mode, mobile networks, location, sounds and vibrations, and brightness. Nothing else appears accessible on this screen and I have looked through all of these options and nothing appears useful.  Also, on the home screen, there are a couple of icons (google, chrome, and phone). “o.k. google” is also available.  Things I have tried: 

  • I have told “o.k. google” to turn off power mode, which it does open that app (even though that app isn’t accessible otherwise), but that doesn’t address the UPSM. 
  • I told “o.k. google” to turn off UPSM and it just brings up the Web for sites that discuss this.
  • One article I read said that, on re-boot (which I have done under normal and also safe mode by Volume Down / Power key combo for about 7 seconds) if a launcher option came up, not to select TouchWiz.  I do know, somewhere in the process (before it locked up) that this option did come up and I don’t recall what I selected.  But I do know there was initially a “turn off UPSM” option, which, when I selected, put the phone into the initial hour long churning mentioned at the beginning.
  • One article suggested a few things and, as a final option, to do a hard reboot, but I would lose un-backed up information.  This is something I definitely don’t want to do unless I absolutely, absolutely, have to do.
  • Another “o.k. google” option that works is turning on and off the flashlight, which is also an application that I can’t access through normal icon means.
  • Both in safe and regular mode:  But another (beyond pod) which is a podcast application:  when I tell google to turn it on, it takes me to google play and shows that app and says is already installed.  If I tap “installed”, it brings up the “beyondpod podcast manager” and shows information about permissions that it has and says no eligible devices for app install, but on a drop down box, I see my phone, but it is greyed out (not accessible) but I can’t actually access the app. Same for Netflix. So, it may be that pre-installed apps are accessible (?) but ones I have added aren’t?
  • As far as the software version driving the phone, I don’t know although, I recently updated the software (in the last few weeks). I have contacted Verizon and spent an hour or so on phone with them, then they switched me to Samsung (they were basically useless) who spent maybe 10 minutes with me and they referred me to Best Buy, who told me I should call Samsung back and hopefully I would get someone useful this time :(. 

Any ideas? — Eric

Solution: Hi Eric. This UPSM bug is a known issue since last year but even now, there’s no official word from Samsung for an official fix. It appears that the workaround found in many Android forums are effectively dealing with the issue that no Samsung intervention may be needed at all, or so it seems.

As outlined in our previously posted article, there are only a few things that you can do on your end to turn Ultra Power Saving Mode off. For easy reference, we will give them again here if you don’t want to check that material out.

Under normal circumstances, UPSM can be disabled by going under Settings>Battery>Ultra power saving mode>Select the OFF option.

Since this is not working on your device right now, another way that you can try includes going to Settings>Personalization>Easy Mode. Once you’re in Easy mode, you should see a UPSM screen with an option to turn it off.

Of course, there’s also the method of booting the phone in safe mode to turn UPSM mode off. This method depends whether or not your device will ask you what launcher to use as default. If your S6 no longer asks you what launcher to pick, then there’s nothing much that you can do since you’re supposed to select the generic launcher instead of TouchWiz.

Finally, if all these methods won’t work, doing a factory reset is your last resort. Here’s how it’s done:

  • Turn off your Samsung Galaxy S6 Edge.
  • 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 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 #2: New Galaxy S6 Edge keeps shutting down on its own

Hello. I recently got my S6 Edge. It’s less than 2 weeks old but it switches off randomly whether I’m using an app or not and it won’t switch on and have to jump start it by plugging in the charger. it switches on  like nothing happened but after a few minutes or so it switches off again. then i have to do the process again.

Some have advised that it needs a software update or the OS has a virus but i can’t even do the update it brings a message that reads: “The operating system on your device has been modified in an unauthorized way. try downloading software updates using smart switch on your PC or visit a customer service center.”

I have tried to do hard reset/factory reset twice but it is still giving me this problem. — Anesu

Solution: Hi Anesu. The error message “The operating system on your device has been modified in an unauthorized way. try downloading software updates using smart switch on your PC or visit a customer service center.” is an indication that your device may be running a custom firmware. If this phone was handed to you, or if you bought it from a non-Samsung retail outlet, chances are you have a defective product, or that it’s operating system is not official. There’s basically little to  nothing that you can do if the device keeps on rebooting regardless of tasks it is doing. Consider booting it in safe mode first to see if that will make a difference, or if it makes the system stable. Here’s how to do it:

  • 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 phone continues to shut down on its own, try to do a factory reset by following the steps above. If the issue remains even after you do a factory reset, you can assume that you may have a lemon. Have the phone replaced.

Problem #3: Galaxy S6 Edge Plus Fast Charging and data transfer to PC problems

Hello, I recently discovered that my Fast Charging and Data Transfer connection to my PC has stopped working.

  1. On multiple PC’s I receive the “USB Device Not Recognized” when connecting my Samsung Galaxy S6 Edge Plus.

Data Transfer Issue (Things tried):

  1. No longer have original cable, but purchased Samsung USB Data/Charging Cables (4 to be exact) where none of them seem to correct the issue.
  2. Tried installing Samsung Galaxy S6 Edge Plus driver to my PC, but no change in issue.
  3. Tried booting into Safe Mode to bypass apps installed, same issue.
  4. Performed Factory Reset. No change, same issue.

Fast  Charging Issue:

  1. No longer have original cable, but purchased Samsung USB Data/Charging Cables (4 to be exact) where none of them seem to correct the issue.
  2. Tried booting into Safe Mode to bypass apps installed, same issue.
  3. Performed Factory Reset. No change, same issue.
  4. Checked to see if Fast Charging option was disabled, but it was enabled.

Any other thoughts to attempt to resolve??

Can some applications prevent these features from working correctly?

Thanks. — Joe

Solution: Hi Joe. Fast charging and data transfer via USB features are managed by the operating system so it’s possible that app conflicts with the OS can indirectly affect them. If the same problem occurs while in safe mode or immediately after a factory reset, the most likely cause for your problem may be a bad microUSB port. If the phone is still covered by a replacement warranty, we recommend that you request for a replacement.

Problem #4: Galaxy S6 Edge Plus in bootloop and won’t boot to recovery mode

A friend gave me a Samsung Galaxy S6 edge plus about a week ago and I’ve been trying to get it going since. Listed below are the list of events that have gotten me to where I’m at. Need assistance to move forward. Thanks for your time in advance.

  1. My friend found the phone at a cell phone drop-off location.
  2. He did a factory reset on the phone but it had Google Factory Reset Protection or (FRP) enabled.
  3. He wiped the cache and didn’t do much more if anything before he gave it to me.
  4. I tried to bypass Google FRP without OTG
  • Installed SideSync and started it.
  • Installed Bypass Google Factory Reset Protection.apk on root of the phone.
  • I connected to my Wi-Fi and backed up to the select language screen.
  • Plugged in cable, but the screen saying “Open with” did not appear so I could not move forward.
  1. I tried to find and restore official firmware but had no luck. (Verizon Phone)
  • Model Number on back of phone: SM-G928VZDA
  • Cannot locate firmware anywhere?
  • Model Number on Samsung website when registered: SM-G928VZDAVZW
  • Cannot locate firmware anywhere?
  • IMEI: 990005895668029
  1. Called in reinforcements. My friend is a N.C. state graduate with a degree in Computer Science.
  • He worked on it for hours like me and could not find the official firmware.
  • I was frustrated so I went to play some billiards in my game room.
  • He flashed some firmware but it was not the official firmware needed.
  • He restored some unknown firmware using some unknown version of Odin.
  • I wasn’t watching so I’m not sure what he did.
  • I came to see if he had made any progress and the S6 was in a boot loop.
  • I tried almost every known suggestion on the web and nothing worked.
  • Now the Samsung Galaxy S6 edge plus is stuck in boot loop.
  • I cannot access Android System Recovery Screen by holding Volume Up+Power+Home. Holding these buttons does nothing no matter how long you hold it.
  • I’m at a total loss now and need some help.
  1. Thank you in advance for any information you may have to help me get this S6 straighten out. Regards. — Nolan

Solution: Hi Nolan. Your only chance at making this device work again is by attempting to flash a stock firmware to it. If you can’t find the exact firmware for it, or if it no longer boots to Odin mode, then it’s good as gone. The bootloop situation is an indication that the phone is unable to complete the boot process, so there may also be a problem with the bootloader in the first place. Installing a new firmware, if it’s possible is the only way out at this time. If the system keeps getting interrupted by a bootloop, there’s no way to move forward on this one.

Interesting note: some information (model number and IMEI) you have provided do not appear to match. When we run a quick check of the IMEI, it shows that it belongs to a Galaxy S5 and not to a Galaxy S6 Edge. The phone may not even be an original Galaxy S6 Edge so we recommend that you save your effort and time in trying to fix it.

Problem #5: Recent Apps button not working correctly after an update

Almost a week ago, the recent apps button started acting strange on my S6. It was around the same time I did an update and I’ve read that many other people have had similar issues. At first, it wouldn’t work at all (mildly inconvenient). After about a day, it began to work again, but would occasionally pull up my recent apps when I did not hit the button (fairly irritating).

 Over the next few days, the issue got progressively worse and now it’s as if the button is perpetually being pushed. The recent apps screen is constantly interrupting what I’m doing and the phone keeps trying to go to split screen. It has basically rendered my phone useless at this point because I cannot get the screen to hold still long enough to get anything done.

I wiped the cache, did a soft reset, and did a factory reset. The problem went away for about an hour, then came right back. Sprint is telling me I’ll have to pay the deductible for a new device even though this is a leased phone they provided me and I have insurance on it. Please help! — Danae

Solution: Hi Danae. There may an app/s causing the glitch. Try doing another round of factory reset and observe how Recent Apps button work without the apps. This will confirm if our hunch is right.

Keep in mind that not all apps may be compatible with Android Marshmallow at this time. Some of them can create conflicts with the OS, which can lead to all sorts of problems.

If Recent Apps button will work normally without the apps, try to use the process of elimination to identify the culprit. Install your apps individually and make sure to observe the phone before you install another one.


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