Galaxy S6 only charges when connected to laptop, other issues

With millions of #GalaxyS6 units in circulation at this time around the world, it can be expected that a lot of issues will be reported.


Below are the specific topics that we tackle today:

  1. Galaxy S6 not charging normally | Galaxy S6 only charges when connected to laptop
  2. Galaxy S6 not receiving all messages from iPhones
  3. Limit on the number of SMS that can be sent at one time on Galaxy S6
  4. Straight Talk Galaxy S6 Marshmallow update causing multiple problems
  5. Galaxy S6 screen keeps flickering after it got wet

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 S6 not charging normally | Galaxy S6 only charges when connected to laptop

Hello, and first off thanks for your help. I’ve done a lot of rummaging through your site with no luck yet. My phone seems to only charge when it’s getting a low input of power, i.e., cigarette lighter or laptop. My phone charges off the laptop fine, but the laptop doesn’t recognise it or allow me to take files off my phone. When using a powerpoint only really cheap shitty boxes charge it. My fast charging unit charges my girlfriends S7 but my s6 doesn’t even notice it’s there. Whenever i can find something to charge my phone from empty it always estimates around 6-7 hours until fully charged.

I want to factory reset but can’t clear my files first. the shop thinks it’s a loose connection and want to replace the plug, but they have let me down on a misdiagnosis before. when my phone is charging, no amount of wiggling makes it disconnect, to me ruling out the port. the port is very clean. my phone also suffers from the camera rattle that’s common but i can’t see that effecting it. Thanks again — Chris

Solution: Hi Chris. Diagnosing a hardware issue on a smartphone is a tricky business so the chance of misidentifying the true problem occurs from time to time. This is the reason why we almost always recommend phone replacement instead of repair.

The issue you describe above appears to be hardware in nature but we suggest that you try software troubleshooting as well to confirm it. The steps that you can do includes booting your phone in safe mode, wiping the cache partition, and factory reset. These are basic software solutions that you can do on your end. There’s really nothing much an average user can do when faced with this situation. As usual, if these procedures won’t change anything, consider having your phone replaced.

For reference, below are the steps on how to do the mentioned software troubleshooting:

How to wipe the cache partition of Galaxy S6

This procedure is very helpful in fixing issues like random reboots, boot loop, stuck during boot up, random freezes, and sometimes, charging glitches. Here’s how you wipe the cache partition on your S6:

  • Turn off the device.
  • Press and hold the following three buttons at the same time: Volume Up key, Home key, and Power key.
  • When the phone vibrates, release the Power key but continue to press and hold the Volume Up key and the Home key.
  • When the Android System Recovery screen appears, release the Volume Up and Home keys.
  • Press the Volume Down key to highlight ‘wipe cache partition.’
  • Press the Power key to select.
  • When the wipe cache partition is complete, ‘Reboot system now’ is highlighted.
  • Press the Power key to restart the device.

How to boot a Galaxy S6 to safe mode

Booting in diagnostic mode, also known as safe mode, is usually recommended if you suspect that an update or third party app is the reason why your smartphone behaves abnormally. Though there’s little to believe this is what’s happening in your situation, we still recommend that you do it while charging to see if it makes any difference.

  • 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 doing the two procedures above won’t result to anything positive, don’t hesitate to do a factory reset. This is the final step that you can do at your level before eventually submitting the phone to a replacement or repair request. Refer to the steps below.

Problem #2: Galaxy S6 not receiving all messages from iPhones

I recently upgraded from a Galaxy S3 to a Galaxy S6. I don’t regularly text with multiple people so I don’t know if my issue is happening with everyone or just the numbers of two people that I do regularly text with. Both of them are also on AT&T and both have the same iPhones they had when I had my Galaxy s3 and I never had an issue receiving all of their texts. This issue started immediately after I got the S6. As an example, the other day one of the phone numbers sent me 7 texts during the day and I only received 4 of them. They sent me a text this morning that I did not receive however when they sent me a follow up text to see if I had received their first text, I did receive their follow up text.

I have called AT&T twice about this. I have deleted and then re added both of these contact names and numbers to my contact list. The first time I spoke to AT&T they actually removed my cell phone from their network, had me turn off and on my phone and then they put me back on their network but it did not resolve the problem. The second time I called AT&T which was late last week they had me do a Force Stop on the AT&T Message App which I did. I guess doing that supposedly reboots the app. I thought the problem was fixed until I found out this morning that I had missed another text from one of the numbers that this has been happening with.

Neither of the numbers I am having issues with is blocked on my phone or is shown as being spam, plus since I do receive about 70% to 80% of their texts, it shows my phone does have the capacity to receive their texts, it just isn’t receiving all of their texts.

When I talked to the last AT&T rep she said if the text app reboot didn’t fix my problem then I should go to the AT&T store and ask for a new SIM card. Since my phone is only a little over a month old (I bought it from AT&T) though I don’t see how/why a new sim card would help.

I am at my wits end. If you know of any other things I can try to do to fix this issue please let me know. Thanks so much. — Deborah

Solution: Hi Deborah. This problem can’t be fixed by a third party like us. You must work closely with your carrier until it’s fully resolved. But just in case there may be some update or firmware glitch that’s interfering with the local messaging app you’re using, try to wipe the phone clean and observe it for a few days. This means that you must do a factory reset and observe the behavior of the messaging function. Make sure that you don’t install anything during the observation period. We suggest that you do the observation for at least 48 hours. If nothing will change, call AT&T for more direct support.

For reference, these are the steps on how to factory reset your device:

  • Turn off your Samsung Galaxy S6.
  • 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 Vol 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 #3: Limit on the number of SMS that can be sent at one time on Galaxy S6

This email is to inform you that I have a Samsung Galaxy S6 phone and I would like to get more information as to how can I send more than 20 text messages at one given time manually through text messaging.

Also, I want to have to take the limitation of the number of contacts you can put in a group which is 52/1000 to 2000 client I have so I can send instant text messaging through my phone.

Can you provide me a solution with Samsung Galaxy S6 phone 2 taking out the limitation of the text messaging software issue instead of using any third party. I will also consider a good app that can take over thousands of phone numbers and save it in a group where I can send instant text messaging with numbers only. — Raheel

Solution: Hi Raheel. The limit on the number of text messages that can be sent at one time varies by carrier and app. Some carriers allow up to 100 recipients while others, like AT&T and T-Mobile, only allows 10. Some third party apps may or may not be able to stretch the limit imposed by your carrier. There’s usually no workaround this limitation because no one except your carrier can change their network policies. Still, the best party that can answer both of your questions is your carrier, not us. Make sure you redirect your queries to them.

Problem #4: Straight Talk Galaxy S6 Marshmallow update causing multiple problems

Who ‘pushes’ out the updates to the OS, Samsung, the network carrier? On or about 5/26 my GS6 (purchased from Walmart and using the Straight Talk network) received an update to v6.0.1. That evening I let it install, put it on the shelf by my bed, and went to sleep. The next day it appeared the new version loaded okay, until later in the day; major issues started with:

1) heating up to where I couldn’t hold in my hand;

2) internet connection very intermittent;

3) texting also very intermittent and once in a great while you could actually attach a picture and it would send ok;

4) calling was ‘hit and miss’ with I called. Sometimes able to hear me, I could always hear them.

Tried getting help from Samsung but was told that they had no reports of this kind of problem happening. Apparently I was the first and only person it happened to. Tried working with Straight Talk support who temporarily fixed the texting with attachments issue and that worked for a short while but they couldn’t help me with other issues; so contacted Walmart because I also bought a 2 year replacement plan when I bought the phone last year but they couldn’t help because the 1 yr manufacturer’s warranty hadn’t expired yet. They might be able to help now that the warranty has; BUT, I am curious as to WHO pushed out the update, the manufacturer or the network carrier? — Ed

Solution: Hi Ed. Walmart is the physical store where you get the phone but the carrier or network operator should be Straight Talk. Straight Talk is a network operator in partnership with TracFone and Walmart. The software update being pushed to your phone should come from Straight Talk so if you have problems after installing an update from them, you must ask support from them. The best that Walmart can do is to offer a phone replacement but if Straight Talk’s software is at fault, you may still encounter the same problem even on a new phone.

Before you contact Straight Talk for resolution, be sure to wipe the cache partition and to factory reset the device. Sometimes, post-update issues can be fixed by doing any, or both of these procedures.

Problem #5: Galaxy S6 screen keeps flickering after it got wet

I dropped my phone in the bathtub last night, and the screen keeps flickering. I turned it off overnight, and wrapped it in paper towels, and stood it upright.

This morning I turned my phone on, and everything seemed fine.

Except for one thing:

The screen keeps glitching and turning white, black, green, and back to normal. (I’m actually using my phone to type this up right now, however the screen does glitch.)

All the other buttons are fine. The sound works great, calling is good, it vibrates, plays videos, takes picture. All in all its fine.

Except for the screen.

Please help! My dad is gonna kill me. — Alyssa

Solution: Hi Alyssa. Frankly, the best thing that you can do right now is to turn off the phone and have it checked by a professional. If this screen issue was not there before the phone got wet, you must have a hardware malfunction going on. Because a Galaxy S6 is not water-resistant, there’s also a high likelihood of other components developing hardware problems at this time. There’s nothing that you can do on your end to fix a hardware issue, unless you want to risk opening the phone yourself and diagnosing the issue. Our blog does not provide hardware troubleshooting so if you are really intent on doing hardware diagnosis, try to look for other online resources.


Related reading: Things to do when you have a water-damaged Android phone


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.