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What to do if Galaxy S8 won’t charge properly or if charging speed is slow

One of the common issues that a lot of #GalaxyS8 users experience is erratic or slow charging. In this troubleshooting article, we will tell you how to address it. We hope you’ll find this post helpful.

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 S8 won’t charge properly or if charging speed is slow

Before the update, whenever it was 0%, it would charge to about 8% when I plug it in. After the update, though, it charges when I leave it, but only 2 percent per about 3 minutes. I think it helps a bit if I charge it while it’s off, but my parents call me regularly and might worry if I’m charging it while it’s off. Since this is my mom’s old phone, she has documents and files here that are important, so I really don’t want to factory reset. I don’t think wiping the cache helps it, and I’ve also updated every app I have on my phone. I can’t downgrade it, because I don’t have access to a computer, and it might worsen it even more, so I really don’t want to risk it. I’ve thought of calibrating it but I read that it’s bad for your phone and I don’t know if it fixes this thing I am experiencing. I don’t really think it’s the charger or the plug, because that’s the one that used to make this phone charge fast. 

Solution: There’s only so much that you can do when troubleshooting an Android device. It seems you’ve already read some of our troubleshooting articles so you pretty much have the idea what things to try. When it comes to an issue like yours, software troubleshooting must include the following:

  • Cache partition wipe
  • Battery and OS calibration
  • Keep system and apps up-to-date
  • Factory reset

All these four troubleshooting steps should cover the common reasons for erratic battery or power behavior of your device. If you don’t want to do them, then consider the issue to be hardware in nature. To fix that, you must send the phone in to Samsung to be repaired or replaced. (Samsung will still factory reset the device before or during repair).

Problem #2: What to do if your Galaxy S8 won’t be detected by a computer

Samsung sent me the update for galaxy S8 and after i downloaded the update and installed it like a week after i tried to backup my phone but my phone wasn’t picking up in my computer. i checked the DEVICE MANAGER and still i haven’t seen my phone be connected. so i plug up my charger to the phone see if it will charge with my fast charger or if there is any problem with the charging port but i realized that it was charging but it wasn’t fast charging the battery was at 15% and it the android system notification thing noted that it will take approximately 6hrs and more to full charge.

so i got scared and cleaned out my charging port with a little mentholated spirit and didn’t do anything. so i used a little rubbing alcohol and still didn’t do anything. i even put it in the freezer still didn’t do anything. i even borrowed my brothers s8 plus  fast charging head adapter and still got the problem. i even wiped the cache partitions like 10 times and i still have the same problem but the second to last thing and last thing i didn’t do as yet was to hard reset or soft reset the phone but i haven’t backed it up as yet and i don’t want to sell the phone as yet because i don’t have money yet to purchase the phone i want which is the s9 or s9 plus. If there is any way to fix this problem other than wiping the phone (because i haven’t backed up the device as yet) so please help me please!!! please!!! Amir Eastman

Solution: If you still can, make sure to back your files up. If your computer won’t recognize your Samsung device, that’s probably because it’s running a new Android update. Delete all Samsung-related apps or programs from your computer, then install updates for its operating system. After your computer has been updated, install Samsung Smart Switch on it, then connect your S8 phone via USB. If that won’t help and the PC still won’t detect the phone, you should back the files from your S8 to the cloud. You can use your Google account’s free 15GB of storage space to store some of your files.

Once you’ve created your backup, we highly recommend that you factory reset the device. This is a necessary way to know if the problem with the charging port is caused by a software bug or not. If nothing will change after a factory reset, you’ll need to have the phone repaired to fix the charging port issue.

To factory reset your S8:

  1. Back up data on the internal memory. If you have signed into a Google account on the device, you have activated Anti-theft and will need your Google credentials to finish the Master reset.
  2. Turn off the device.
  3. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  4. 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).
  5. Press the Volume down key several times to highlight “wipe data / factory reset.
  6. Press Power button to select.
  7. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  8. Press Power button to select and start the master reset.
  9. When the master reset is complete, “Reboot system now” is highlighted.
  10. Press the Power key to restart the device.

Problem #3: Easier way for Galaxy S8 to remember APN settings

Hi, I’m José from Belgium and I still use a Samsung Galaxy S8. one issue about the settings. And I doubt it would be solved by purchasing a younger version. In order to arrange a couple of online payments for my aunt occasionally, I take the sim out of my phone and I place in the sim of my aunt. For the verification of her identity the banking app is using the mobile number linked to the sim. All this just works well. Every time when I replace my own sim after completing the financial transactions, I have to re-enter the settings for mobile data and for mms messages (access point names and the associated parameters). Is there any way to save these data on my device please?  If not, is it possible to apply a method that is shorter than re-enter these settings manually? Thanks in advance! José Slagboom

Solution: Samsung does not anticipate users to regularly disconnect and reinsert SIM cards on their devices so there’s no feature that allows it to remember previous APN and other network settings. Network settings are automatically forgotten by the device once a SIM card is removed to allow it to take another set of network settings. Your concern is not that widespread as well so there are no developers that build apps for this particular concern.

 


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