Galaxy S6 lags with games like Pokemon Go and Clash or Clans, other issues

We seldom receive requests for assistance regarding a #GalaxyS6 with issues playing games so we’re pleased to publish about it here today. Other issues are included below as well.


Here are the specific topics mentioned in this material:

  1. Galaxy S6 constant reboot issue
  2. Galaxy S6 won’t boot normally after a failed ROM flashing
  3. Galaxy S6 screen flickers when Power button is pressed
  4. Galaxy S6 won’t connect to the internet when in a specific Wi-Fi network
  5. Galaxy S6 lags with games like Pokemon Go and Clash or Clans

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 constant reboot issue

I have been having the S6 reboot issue that you wrote about in March. I’ve followed your instructions in your article (first checking apps, then clearing cache, then factory reset). I did the factory reset three days ago, although I wasn’t looking at your article at the time so I just did the factory reset by navigating through the settings menu instead of doing it in recovery mode like you suggested. Now, three days later, I have started having the issue again and it has progressed to the barely usable level more quickly than the first time. Is there a difference between the factory reset I did and the one you recommended? Should I try the recovery mode version?

It may be a coincidence, but after three days of problem-free use after the reset, today I used the samsung smart switch app to transfer my contacts from my old S4. A few hours later I noticed the first auto-restart. The first time I had the restart issue, I had also used the smart switch app for the contacts, but that time it took a week before the issue got really bad. May just be a coincidence on timing but interested to hear your thoughts. Thanks! — Drew

Solution: Hi Drew. Factory reset done via Settings is essentially the same with factory reset through Recovery mode. The only differences when you do the are a) the Google account on the device will be deleted, and b) any root procedure you’ve done before will be undone. If the factory reset via settings did not change anything, do another round of factory reset through recovery and observe the phone for at least 24 hours. To also check if a third party app is causing the trouble, make sure that you don’t install anything during the observation period. If the problem remains after doing this, consider getting a phone replacement.

Problem #2: Galaxy S6 won’t boot normally after a failed ROM flashing

Hello. I was trying to download a custom ROM and did not follow all the directions by not clearing the data/cache when booting it up using an instantflash program. My phone is stuck in the Samsung Galaxy S6 screen and will not shutdown or boot up. I can hold down, Power, and Home to reset the Samsung screen and get into Odin Mode where I am able to restart my phone back to the Samsung screen or download, which I had sitting on the download screen for over an hour and nothing happened. I can reset it again and hold Up, Power and Home and it goes to the Android Guy icon but it has an error sign in his chest and no other options to reset or clear cache.  After a minute in that it just resets and goes back to the Samsung Galaxy  s6 screen.  It does seem to be looping as it just stays on the screen.  Any help would be appreciated.  Link is the Rom I tried to install. — Kody

Solution: Hi Kody. There’s really nothing much that we can do to help fix your issue, especially that it’s a product of unofficial software modification. Kindly do the usual software troubleshooting we suggest like attempting to boot the device in safe mode, or doing a soft reset (by holding Power and Volume Down buttons for at least 10 seconds).

To boot in safe mode, follow these steps:

  • 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 device remains stuck, that’s an indication that you’ve messed up the bootloader badly. Unfortunately, there’s no effective fix for this issue. You must find a way to have your phone replaced for resolution.

Problem #3: Galaxy S6 screen flickers when Power button is pressed

I’ve been having issues with the screen. Pressing the power button on the side to light up the screen reveals a white or very brightly lit display that flickers and fades. There’s nothing I’ve found that will ensure the screen lights up normally the way it used to. Occasionally it does, but it’s up to the phone or maybe sheer luck, but it doesn’t last. I’ve gone as far as to factory reset my phone and honestly it seemed to help for about 3 disappointing minutes. I’ve contacted my carrier and this is apparently a widespread issue they’re having with an ample amount of customers. They’re claiming to be “investigating” the issues, and have offered to replace my phone with a slightly cheaper version of the same phone that will run on different towers than my current, which means it most likely won’t work in the rural area I reside in. If you have any ideas on how to handle this handheld catastrophe, please let me know. I’m out of patience, and I currently I can’t afford to just go buy an entire new phone. I hope I’ve provided enough information about the phone/issue. If you need more information or have any questions please don’t hesitate to contact me. Thanks. — Ty

Solution: Hi Ty. As much as we would like to help you, the only resolution to your issue is a phone replacement. That factory reset did not fix it suggests the issue is beyond your ability to fix. There’s nothing that we will tell you that can fix it. This is obviously a hardware problem and since we doubt you can handle parts replacement (and may not even have the right tools), the only way out is getting the device replaced. If your carrier is aware of your problem then your phone is probably part of a bad batch. Kindly work with your carrier to get proper resolution.

Problem #4: Galaxy S6 won’t connect to the internet when in a specific Wi-Fi network

Hey guys, so recently, my device has been having a very specific issue. Any time I try to connect to a Wi-fi network that requires “authentication” or agreeing to terms, it’ll say connected, but when it pulls up the Web page for me to “agree” or “sign in” it says that “Google cannot be opened, the page may be temporarily down or has permanently moved locations.” Even with mobile data on, it won’t load. I can pull up Google no problem on mobile data (but I’m trying so conserve it, hence why I’m using wifi over data.) This seems to only happen with these types of guest/public wi-fi that require a sign in. My home wi-fi has no issue. Not sure if it’s an issue with an app (I don’t really have any 3rd party apps to my knowledge, and haven’t downloaded anything recently either. This has started happening maybe 2 weeks ago.) It also makes me question if this is potentially a virus on my phone. Whatever advice you have, please let me know! Sincerely. — Nick

Solution: Hi Nick. We really don’t understand what you mean by this: “Even with mobile data on, it won’t load. I can pull up Google no problem on mobile data…” If you have an issue connecting to the internet when you are in a specific Wi-Fi network ONLY, then that’s a clear indication that there’s no issue with your phone or apps. Wi-Fi networks can have problems too!

There’s no way for us to know what the exact problem might be so you should talk to the administrator of the problematic network if you want a resolution for this. They may have set some type of filters that doesn’t permit your device from connecting. It’s also possible that they have set a limit on the number of users that can connect to their network to provide ample bandwidth. Again, you must ask support from the Wi-Fi administrator if you want to fix this issue.

Problem #5: Galaxy S6 lags with games like Pokemon Go and Clash or Clans

I’ve been using my phone for about 4 months now. I’m not much of a gamer but there are some problems with my phone that I’m only noticing now. My phone is quite powerful in terms of the performance. 3GB of RAM is more than enough to suffice for my gaming needs. In spite of its impressive specs on paper specifications, there are a few anomalies I just couldn’t ignore.

I installed Clash of Clan and it used to run on my previous phone just fine. Smooth running, but ever since I switched phones, I’m not quite happy. My current phone has a poor game rendition. There’s so much lag, it ruins the experience and frankly it’s a deal breaker. I tried a few high end games like GTA and they run just fine. But then I try playing games like Pokemon Go and I encounter the same problem. It’s extra laggy and not at all what one would call smooth running. I don’t quite know how to explain it but I’ll try to articulate it for you the best I can. For instance when I try scrolling through my Pokemons in the game it’s super laggy and the game is slow over all. Help me come up with a fix because I tried a ton of things. Any help is appreciated. Thanks a bunch. — Madhav

Solution: Hi Madhav. Keep in mind that it takes more than just RAM to run games smoothly. Your case is interesting though as the games you’ve mentioned work in our own Galaxy S6 phones just fine. That means that hardware-wise, the Samsung Galaxy S6 is more than capable to play these games. There must be other factors causing your games to run slowly. One thing you want to ensure first is to wipe the cache partition. The phone needs an updated system cache in order to load and run apps properly. Make sure that it’s fresh before attempting to play the games. To wipe the cache partition, follow these steps:

  • 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.

If nothing will change after wiping the cache partition, consider re-installing the games. If you’ve done it already, the next logical step is to ensure that said apps are installed in your phone’s internal memory and not in the SD card. If they’re in internal memory already, try to check if you have enough storage memory. Try deleting some apps or files to provide more space.

Should said games remain laggy or problematic, do a factory reset. Once you’ve wiped the phone clean, install these games and observe how the phone behaves. Make sure that you only install the said games during the observation period so you’ll notice any difference. If the problem remains, you can assume that your S6 is defective. Consider having it replaced.


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