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Unable to move files to Galaxy S7 mini due to lack of storage space error, can’t boot to safe mode, other issues

We’ve been receiving a steady stream of #GalaxyS7 issues lately so it’s only natural that we turn publish as many of them as possible. So, this post brings you another list of Galaxy S7 issues for today.

These are the specific topics that we cover for you in this one:

  1. Galaxy S7 can’t factory reset in recovery mode
  2. Galaxy S7 Edge freezing and rebooting on its own due to motherboard failure
  3. Galaxy S7 keeps freezing and rebooting
  4. Unable to move files to Galaxy S7 mini due to lack of storage space error
  5. Galaxy S7 stuck in Samsung logo screen | Galaxy S7 screen turns black but phone still vibrates
  6. Galaxy S7 can’t boot normally | Galaxy S7 can’t boot to safe mode
  7. Galaxy S7 keeps restarting even if battery level says 80%

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: Galaxy S7 can’t factory reset in recovery mode

After another time of the phone being stuck at the bootscreen, I decided to yet again factory reset it in the recovery mode. However it said that the data wipe has failed, yet the factory reset was done. It gave the errors: E: Data wipe failed E: Format_volume: Make ext4 failed on /dev/block/platform.115a0000.ufs/by-name/USERDATA with 1 (I/O error). Since this moment, the phone can only reset itself on Recovery mode. Everytime I try to reboot the phone, it puts itself in this mode and tries to instantly erase my data (and then fails). I have no idea what to do anymore and couldn’t find any hints on Google about it. I never even tried to install a custom rom, which means it can’t be 3rd party. Would you guys be able to help me? I am completely out of ideas. — Patrickdenuijl

Solution: Hi Patrickdenuijl. We encountered an issue similar to your case before on a Galaxy S5 but it was due to failed rooting/customization process. If you never rooted the phone or installed a custom software before this issue started to show, there’s nothing else that you can do but to contact Samsung so the unit can be replaced. The phone’s bootloader may have been corrupted for some reason.

If you are the more adventorous type and is fond of rooting or installing apps outside of the Play Store, try to visit forums that handle questions related to the apps or software you install on your device. Our blog does not support rooting-related issues so you must reach out to the community that develops the software you’re using.

Problem #2: Galaxy S7 Edge freezing and rebooting on its own due to motherboard failure

Hello. My Samsung S7 Edge (factory unlocked) suddenly began to freeze and reboot (and it happened first when it was charging, then – whenever it wanted). Wiping cache, restoring to factory settings and reinstalling stock firmware didn’t help me. It also froze at Samsung logo or earlier, at first page of recovery mode. Once it froze while installing firmware through download mode. Guys at service center helped me to reinstall firmware. But it helped only for 19 days and the problem appeared again. I will appreciate much if you could help me with this problem. (Samsung centre offered to replace motherboard of the phone for 50% value of the phone. But I’m not sure whether it’s hardware problem or not. Thank you. — Dennis

Solution: Hi Dennis. This issue is most probably caused by a hardware malfunction so the best thing that you can do is to go through the suggested motherboard replacement. Since you’ve already tried all software troubleshooting steps that can be applied, there’s nothing more that we can tell you at this time. We hope that Samsung’s motherboard replacement will be a permanent fix.

Problem #3: Galaxy S7 keeps freezing and rebooting

Hello there. I bought a Samsung Galaxy S7 5 months ago and it has been working perfectly. But during the last 3 days, whenever I charge my phone, weird things start to happen. The first time and while charging, my S7 started rebooting and got stuck at the Samsung logo. So I turned it off using the recovery mode. After an hour I turned it on and it start working normally. The second day and again while charging, the phone went off and even the LED indicator was off.

I tried to power it on but unfortunately it didn’t. It won’t even boot into recovery. For a second I thought the phone was dead until I tried to boot into download mode and press the volume down button so the phone can reboot. And it worked. And just yesterday and again while charging it started the reboot loop, I turned my S7 off for a moment and then powered it on. It worked for 10 minutes and then again it started rebooting the moment I tried to launch a game. So I decided to wipe the cache and do a factory reset, unfortunately it wasn’t helpful it got stuck at the optimization of applications screen and it will just reboot repeatedly. I shut it down until today morning; it starts working again.

I was wondering what is the solution of my problem because I’m pretty sure the next time I try to charge it it will repeat the same thing. The only thing that I noticed whenever I wanted to power off my phone in the recovery mode just before it went off I could see a red sentence : unable to mount/system (invalid argument) or something like that. I hope that my details will help you understand my issue. — Marouane

Solution: Hi Marouane. Android troubleshooting is simple and it follows a simple rule — if software solutions fail, then hardware must be to blame. Going over your problem description, we noticed that you’ve already tried factory reset at least twice. Factory reset is usually the last thing an Android user must do to fix a software issue. That at least two factory reset sessions did not change anything is clear proof that there’s an issue with hardware.

To know what particular component is failing right now is beyond our scope of support. A technician needs to physically open the phone up and check the motherboard in order to run tests. If the phone is still within a one-year manufacturer warranty, we suggest that you bring the device to a Samsung shop so it can be checked. Some of the common points of failure that results to the symptoms you’re describing here (freezing and rebooting) includes bad battery and erratic processor. To get an accurate assessment of the situation, try to let Samsung handle the hardware checkup, if possible.

Problem #4: Unable to move files to Galaxy S7 mini due to lack of storage space error

I got a problem with my S7 Mini. As I take a look on the specs of the internal storage that’s 8Gb and 1Gb RAM… Android V: Marshmallow 6.0. As I transfer my files in internal memory there’s a pop up dialog box saying “Operation Failed.” And also when I’m adding an APK app, I need to manage App. “Out of Memory”. I looked on the setting that still I got 500Mb RAM and 6Gb free storage. So what should I do with this trouble?! Thanks for responding on my issue 😀 God Bless. — Chester

Solution: Hi Chester. We don’t think we understand your situation very clearly here. Please get back to us and give us more background information about your case. Try to be as clear with the description as possible so it would be easier for us to get your point. Give us the names of the apps you’re using as well as the complete steps that you’ve taken. We can’t read a problem description like yours and get your point right away. We’ve tried reading and re-reading what you wrote but we really can’t arrive at a point where we can say we understand what you mean.

If you happen to be having difficulty moving files from one medium to another (like when transferring files from SD card to internal memory), make sure that there’s enough free space on the target destination before doing it. You cannot obviously move a 7GB file to a 6GB storage medium. We think this is the main reason why your transfer attempt is unsuccessful.

If you want to free up space easily, do a factory reset. Here’s how:

  • Create a backup of your important files.
  • Turn off your Samsung Galaxy S7.
  • Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  • When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  • When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  • Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  • Once highlighted, you may press the Power key to select it.
  • Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  • Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  • The phone will now reboot longer than usual.

Problem #5: Galaxy S7 stuck in Samsung logo screen | Galaxy S7 screen turns black but phone still vibrates

My phone got an error message called something has been stopped. Then it turned off. After that I turned on but it goes up to only the Samsung logo screen. Then I pressed volume up and Lock button. Then it came to the custom OS section which asked put a custom OS to continue. I accidentally pressed continued. Then it starts DOWLOADING. I kept it like half an hour and it didn’t finish or close. After that time it appears on to Galaxy Logo screen and screen went off. After that nothing shows in the screen. It’s just vibrating only.. NO SCREEN appears. If you can please tell me know what can I do to repair it. And I want to know whether it’s a SOFTWARE issue or HARDWARE issue. And I want to know is whether I can get data (photos, videos, contacts) in my phone memory. Thank you! — Eranga

Solution: Hi Eranga. The answer to your question depends whether or not you can boot the phone to safe mode or not. If you can’t, then the only possible solutions for your case is either factory reset via Recovery mode, or flashing stock firmware via Odin mode. Both factory reset or flashing will wipe out the phone’s internal user data so those files are good as gone. For reference, here are the steps how to boot your phone to alternate modes:

Boot in Recovery mode:

  • Charge the phone for at least 30 minutes.
  • Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  • When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  • When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  • Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  • You can either wipe the cache partition or do a factory reset when in this mode.

Boot in Download Mode:

  • Charge the phone for at least 30 minutes.
  • Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  • When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  • Wait until the Download screen appears.
  • If you can boot the phone in download mode but not in other modes, that means that your only way out may be to flash a stock or custom firmware.
  • Use Google to look for a guide on how to do it.

Boot in safe mode:

  • Charge the phone for at least 30 minutes.
  • Press and hold the Power button.
  • Once the ‘Samsung Galaxy S7’ logo appears, release the Power key and immediately press and hold the Volume Down button.
  • Continue holding the button until the phone finishes rebooting.
  • Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.
  • The only difference of safe mode from normal mode is that the former prevents third party apps from running. If you can boot the phone in safe mode but not in normal mode, uninstall all apps until the issue (that prevents you from booting normally) is eliminated.

As mentioned above, Android troubleshooting is simple. If nothing changes after trying all these different hardware button combinations, you can assume it’s a hardware issue.

Problem #6: Galaxy S7 can’t boot normally | Galaxy S7 can’t boot to safe mode

One morning I woke up to my S7 frozen at the carrier boot logo screen. Now it always freezes at the carrier boot logo screen on startup. I imagine an update might have caused the issue. I’ve tried removing the SD card,  even the SIM card, all to no avail. It won’t boot into Safe Mode, but will into Recovery Mode and Download Mode. I have wiped the cache, but that has also had no effect. I’d like to fix the issue without doing a full reset and save what data wasn’t backedup. I wonder if the other options available in the Recovery Mode menu might help. Would it be possible to analyze a Recovery Log and use Apply Update From ADB to resolve this? What are those other options for on that menu and how can we use them? Would it be possible to extract my data from my phone, even in this state? Also, any insights into what is happening to cause this issue with the phone. Running stock, unrooted. — Bigbadaar

Solution: Hi Bigbadaar. For an issue like this, we’re afraid you really need to do a factory reset. This will not only revert all software settings back to their known, working state, but will also eliminate possible software glitch that may be preventing the phone from booting up properly. Samsung bootloader (recovery menu) does not offer an option to backup files so your files must go.

The Apply Update From ADB option under recovery menu is mostly reserved for developers to push updates to the system and for some apps. This process of updating via ADB requires advanced coding knowledge, more software kits, and of course the right code that you want to push to the device. It won’t, however, do what you want, which is to create a backup of your user data.

Recovery log, on the other hand, is exactly what the name says, a log. It’s basically a list of events that happened while the phone is in recovery mode and nothing else.

As far as causes for the issue you’re encountering is concerned, there are a few of them. One is a corrupted bootloader, usually bring about by rooting/flashing gone wrong. The other is an OTA update gone wrong. Though rare, we do receive reports from some users encountering this issue after downloading an OTA update. Sometimes, hardware quirks can lead to the bootloader to suddenly stop working as expected. Again, the general rule is, if you can’t fix the issue by software solutions, seek hardware repair or replacement.

As a friendly reminder, always keep a copy of important files to another device or to cloud. Even top-of-the-line devices fail without warning so making sure that you have a copy of everything irreplaceable should save you a lot of heartache. Keep in mind that once a device fails to boot anymore, there is no easy way for an average user to recover the files. Digital forensics is very expensive and most effective software tools are out of reach for end users.

Problem #7: Galaxy S7 keeps restarting even if battery level says 80%

So I’ve dropped my phone numerous times and it finally cracked. There have been no problems until recently. All of a sudden my phone freezes in the middle of using it and restarts. Sometimes when I turn it back on the battery percentage has decreased a large amount and most of the time the percentage is 0. For example it could be at 80% battery life but then it restarts and when it turns back on its at 0%.

Also I’ve noticed that everytime before it turns off, the cell signal bar loses all connection. That’s how I know it’s going to restart. I’m not sure what’s going on I can’t seem to find anyone else with the same problem online. I’m pretty sure it’s a bad battery but I’m going to try to back up and reset the S6 before I go out and replace the battery. Note that I’ve also tried clearing the partition cache and removing the SIM card, nothing worked. — Ethan

Solution: Hi Ethan. If can still manage to turn the phone on for a few minutes, make sure that you try to recalibrate the battery. Doing so will not fix a bad battery but if the problem is due to the operating system not reading battery level correctly, it may work. Here’s how it’s done:

  • Use the phone by playing games or doing tasks to hasten power discharge, until the phone turns itself off.
  • Turn the phone on again and let it turn itself off.
  • Charge the phone without turning it back on.
  • Wait until the battery says it fully charged to 100%
  • Unplug the charger and turn the phone on.
  • If the phone says it’s not 100% anymore, turn it off, plug the charger back in and wait until 100% charge is reached.
  • Unplug the charger the turn the phone on again.
  • Use the phone until you drain the battery down to 0.
  • Repeat the cycle once.

If nothing changes after recalibrating the battery, we doubt there’s anything else that you can do. Try to see if you can move files to a cloud service (like Samsung Cloud, Microsoft’s One Drive, or Google Cloud) while the phone is connected to a charger. This may be the only way to keep the phone powered long enough for you save copies of your files successfully.

To fix the issue permanently though, you must go ahead with your plan to have the device repaired or replaced.

 


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