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S9 Plus random reboot issue

How to fix Galaxy S9 Plus texting issue: can’t schedule sending of text messages

Hello Android fans! Today’s troubleshooting article will once again answer some issues reported to us for the #GalaxyS9Plus. We hope you’ll find this post helpful in fixing your own problem. If not, try to browse through our previously posted troubleshooting articles or watch out for more similar articles in the coming days.

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. 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: How to fix Galaxy S9 Plus texting issue: can’t schedule sending of text messages

Hello. I recently upgraded to the Samsung S9 Plus, I previously had the S5. In the s5 I was able to set a delay for sending text messages that was up to 30 seconds long. I cannot find that delay on the S9 Plus. however I do see where i can schedule a text time (not really the same thing). I really liked the delay and it helps a lot so I don’t accidentally send something to the wrong person.

Solution: If you’re using the Samsung Messages app, you can use its Schedule message option to delay sending of your message later. Such feature may not be available for non-Samsung text messaging apps. The feature also depends whether or not your carrier’s firmware support it. If you’re using Samsung Messages, follow the steps below to use Schedule messages:

  1. Open Samsung Messages app (may only be named Messages in some devices).
  2. Start a new chat, conversation, or open a thread to reply.
  3. Tap the More settings option at the upper right.
  4. Tap Schedule message.
  5. Set up your preferred date and time for sending.
  6. Hit Done afterwards.

If your Galaxy S9 Plus was provided by your carrier or part of your contract with them, you can seek their help in getting first hand information about the missing feature. It’s possible that they may have removed the stock Samsung Messages app and replaced it with their own, which has this missing feature. Again, an issue like yours is app-specific so the answer depends whether or not the text messaging app you’re using supports it.

Problem #2: Galaxy S9 Plus restarts on its own after an update

Samsung S9 Plus shuts downs on it own since OREO update.  Was sporadic initially but now happens within 30 seconds of turn on. Same issues with the phone in safe mode.  Slight delay if in an active applications no pattern to which app just has to be actively in use example open contacts so long as you scroll system stays up but if left on same screen phone will shut down.

Solution: Without a full background of your device, there’s no way that we can tell where the problem may lie. If the phone has suffered physical damage prior to updating it, it’s possible that the update may just be a coincidence and the real reason may be hardware malfunction. If your S9 Plus is taken care of and has not been physically impacted or exposed to water, liquid, or elements, then there’s a good chance that the reason for the current situation is being caused by a firmware glitch. In this case, you want to do two basic software troubleshooting steps: cache partition wipe and factory reset. Below are the steps to do them.

How to clear the cache partition of a Galaxy S9 Plus

Cache partition wipe is often helpful in cases wherein a device has encountered bugs or performance issues following an update. Here’s how it’s done:

  1. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  4. Press the Volume down key to highlight “wipe cache partition.”
  5. Press the Power key to select.
  6. Press the Volume down key to highlight “yes” and press the Power key to select.
  7. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  8. Press the Power key to restart the device.

How to factory reset your Galaxy S9 Plus

Should the phone continue to lag, freeze or display the same problem, you should return all its software information to their defaults. Be sure to back your personal data first before doing a reset.

  1. From the Home screen, swipe up on an empty spot to open the Apps tray.
  2. Tap Settings > Cloud and accounts > Backup and restore.
  3. Tap the following sliders to desired setting:
    • Back up my data
    • Automatic restore
  4. Tap the Back key (bottom right) until you reach the main Settings menu.
  5. Tap General Management > Reset > Factory data reset.
  6. Scroll to the bottom of the screen, then tap RESET > DELETE ALL.
  7. If you have screen lock turned on, enter your credentials.
  8. If prompted to verify your Samsung account, enter the password, then tap CONFIRM.
  9. Wait for the device to reset.

Once you’ve factory reset the device, let it run for a few hours without any third party app. This should help you tell if there’s a difference in performance. If everything appears normal and the issue won’t return, then the cause is probably a bug with the firmware, which the reset has eliminated.

Problem #3: Galaxy S9 Plus files are corrupted when transferred to SD card

Samsung Galaxy S9 Plus corrupting picture and video files. Multiple QA tests done on Factory clean system with verified SD card and rebooting with wiped cache in between tests. Updated with latest system update.

  1. Files can corrupt on the internal drive.
  2. Photos created on Pro setting (with default settings) corrupt more frequently than photos using auto setting.
  3. Files moving to verified good SD card in bulk will corrupt, all pro and many of the auto jobs, all videos
  4. If any app is running in background, moving files to SD card will corrupt.
  5. When COPYING photos and/or video files, in bulk or with an app running in background, photos will corrupt on SD card AND on internal drive.

Do you have any suggestions on how to keep files from corrupting? Apparently, it corrupts something in the header – do have any suggestions on an app or process to fix the files?

Since moving or copying the files corrupts them, and saving to cloud is NOT an option (we have security issues) , we have been able to retrieve the uncorrupted files via sending thru a secure email account, but we can’t send the videos — too large.

Do you have any other suggestions on transferring the files off of the devices? Have you heard from Samsung directly on this Very common recurring problem? Thanks for feedback.

Solution: It’s our first time to encounter this particular issue so the only logical reason that we can think of is that it may be caused by a firmware bug. What that particular bug and whether or not there’s a fix for it on your level is unknown. There’s too many variables in this case so identifying the bug is impossible. What you want to do now is to perform a master reset to see if it continues after that. If it does, you can then go ahead and ask for a replacement unit from Samsung or your carrier.

For your secondary concern, the only suggestion we have for you is to try file transfer apps like Samsung Smart Switch or third party ones like ShareIt. Both of these apps can be installed in another smartphone to allow wireless transfer or large files.

 


Engage with us

If you are one of the users who encounters a problem with your device, let us know. We offer solutions for Android-related problems for free so if you have an issue with your Android device, simply fill in the short questionnaire in this link and we will try to publish our answers in the next posts. We cannot guarantee a quick response so if your issue is time sensitive, please find another way to resolve your problem.

If you find this post helpful, please help us by spreading the word to your friends. TheDroidGuy has social network presence as well so you may want to interact with our community in our Facebook and Google+ pages.

If you are one of the users who encounters a problem with your device, let us know. We offer solutions for Android-related problems for free so if you have an issue with your Android device, simply fill in the short questionnaire in this link and we will try to publish our answers in the next posts. We cannot guarantee a quick response so if your issue is time sensitive, please find another way to resolve your problem.

If you find this post helpful, please help us by spreading the word to your friends. TheDroidGuy has social network presence as well so you may want to interact with our community in our Facebook and Google+ pages.

How to fix a Galaxy S9 Plus that restarts randomly or reboots on its own after an update

One of the common problems that many Samsung Galaxy owners encounter is random reboot issue. In today’s troubleshooting article, we’ll address two cases of random reboot issues on the #GalaxyS9.

Before we proceed, we want to remind you that 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. 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: What to do if Galaxy S9 reboots on its own after an update

Hi. Recently updated my S9 yesterday and out of the blue started having issues. Apps (Twitch and Snapchat) were taking really long to load. Decided to restart my phone but after I did, it began to automatically reboot and would get stuck in the loading screen. I’d get to the Verizon loading screen and it’d start rebooting again. Tried to start my phone in Safe Mode but it wouldn’t work. Tried wiping the cache and doing a hard reset. Still nothing. Same problem…constant rebooting. After performing the hard reset, there was 1 time where I was able to get through the initialization/setup process. It worked normally for ~5 minutes but then rebooted again. Tried to flash my phone with the stock ROM through Odin. The reformat seemed to go fine but still having the same problem – rebooting without me prompting it. At my wit’s end. Don’t know what else to try. Only thing that I can think of is that the stock ROM had a different PDA/CSC. It was still a SM-G935V (like mine) but the PDA/CSC was slightly different. Not sure if that makes a difference. Thank you!

Solution: You’ve already done all the possible software solutions on your level. If the phone still reboots on its own even after flashing the stock firmware, that means the problem is most probably beyond your ability to fix. In some cases, we’ve some Galaxy devices reboot repeatedly due to defective battery. We understand you can’t just swap the battery with a new one on your own without tampering with the hardware so sending this device to Samsung makes sense. If the cause is not battery-related, then it may be something in the motherboard. It can be caused by bad Power Management IC (another common cause). Whatever the true cause is, we don’t think you will be able to identify it yourself without proper training and equipment. For this reason, we strongly recommend that you let Samsung handle the case.

As long as you did not tamper with both software and hardware, you should be able to let Samsung fix the device for free. Bring the device to your local Samsung dealership so they can examine the phone for you.

Problem #2: How to fix a Galaxy S9 Plus that reboots randomly

I have an S9 Plus and it just restarts at 2-3 minute intervals. At first my phone was not even passing the Samsung logo. It would just freeze on the first two letters of the samsung logo and it would restart all over again. At some point the device’s screen would become dead while still flashing the notification LED and i would have to wait till the battery to drain to start the phone again. So I took the phone to a repair shop and they flashed it. So now i have this restarting issue. Any suggestions on how to proceed?

Solution: If this problem started after someone modified the software, even when using official firmware, then the issue may be due to a software bug or an app. To fix the issue, these are the troubleshooting steps that you can try:

Clear the cache partition

Updates sometimes corrupt the system cache. We suggest that you ensure your phone’s system cache is in order by doing the steps below first:

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the Android logo displays, release all three keys.
  4. An ‘Installing system update’ message will show for 30 – 60 seconds before the Android system recovery menu options appear.
  5. Press the Volume down key several times to highlight wipe cache partition.
  6. Press Power key to select.
  7. Press the Volume down key to highlight yes, them and press the Power key to select.
  8. When the wipe cache partition is complete, Reboot system now is highlighted.
  9. Press the Power key to restart the device.

Install Android update

We assume you have a carrier-provided device so if your S9 was flashed during repair, it may be running an older Android version. Be sure to manually check for Android updates under Settings > Software update. Updating the operating system to a newer version may help in fixing the problem. Newer Android versions may be more stable than the previous iteration so this might help.

Update your apps

Just as installing newer Android can potentially fix bugs, making sure that all apps are up-to-date may achieve the same goal. Whether you have a problem or not, it’s always good practice to keep apps updated. Be sure to check Google Play Store app for updates.

If you have some apps from outside the Play Store, we suggest that you keep them updated and ensure that they are compatible with the operating system. Contact their developers if you don’t know how.

Observe in safe mode

As mentioned above, one of the possible causes for your problem may be one of the apps you installed. To check if that’s the case, you want to restart the phone to safe mode. In this mode, no third party app will be allowed to run. With only pre-installed apps working, it should help you determine if our suspicion is correct. Basically, once the phone has booted to safe mode, the only other thing that you want to do is to observe it. If the phone becomes stable and won’t reboot on its own, you can bet you have an app problem.

To boot to safe mode:

  1. Turn the device off.
  2. Press and hold the Power key past the model name screen.
  3. When “SAMSUNG” appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. Safe mode will display in the bottom left corner of the screen.
  7. Release the Volume down key when you see Safe Mode.
  8. Observe the phone for a few hours and see if the problem is fixed or not.

If your phone won’t reboot on its own during the observation period, you need to narrow down the possible causes. Here’s what you need to do:

  1. Boot to safe mode.
  2. Check for the problem.
  3. Once you’ve confirmed that a third party app is to blame, you can start uninstalling apps individually. We suggest that you begin with the most recent ones you added.
  4. After you uninstall an app, restart the phone to normal mode and check for the problem.
  5. If your S9 is still problematic, repeat steps 1-4.

Factory reset

The last troubleshooting that you can do is to wipe the phone and restore all software information to their defaults. After wiping the phone, observe it again for a few hours. If the phone is stable and won’t reboot randomly, then that means that a software bug or app bug may have developed which was the reason for the problem. If the problem stays even after you reset the device, that’s a telltale sign of a hardware malfunction. In this case, you want to send the phone in for repair or replacement.

 


Engage with us

If you are one of the users who encounters a problem with your device, let us know. We offer solutions for Android-related problems for free so if you have an issue with your Android device, simply fill in the short questionnaire in this link and we will try to publish our answers in the next posts. We cannot guarantee a quick response so if your issue is time sensitive, please find another way to resolve your problem.

If you find this post helpful, please help us by spreading the word to your friends. TheDroidGuy has social network presence as well so you may want to interact with our community in our Facebook and Google+ pages.

If you are one of the users who encounters a problem with your device, let us know. We offer solutions for Android-related problems for free so if you have an issue with your Android device, simply fill in the short questionnaire in this link and we will try to publish our answers in the next posts. We cannot guarantee a quick response so if your issue is time sensitive, please find another way to resolve your problem.

If you find this post helpful, please help us by spreading the word to your friends. TheDroidGuy has social network presence as well so you may want to interact with our community in our Facebook and Google+ pages.