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Screen brightness changing when using apps...

When using an app or a game the screen brightness suddenly changing as if I had auto brightness on but it isn't, always seems to go dimmer and sometimes goes to dim and light in quick succession. Is there something in the settings that I need to change?
Samsung S7 I am using.

Same
I have this problem as well, my screen gets brighter some moments.
I notice the colors on the screen become lighter, after a few moments it wil change back to normal.
I don't know what's causing it.

me as well
Yea me too, seams to do it when ever it want not in the app or program.

I'm having the same issue on my S7. Pretty annoying.
Edit: Found a solution here: reddit.com/r/samsung/comments/4a5kkv/when_i_open_certain_games_the_screen_dims_but_the/d0y94nq
You have to install package disabler pro and disable gameservice
Click to expand...
Click to collapse

It's a feature not a bug.

Maybe screen settings is on adaptive mode?

Soufiansky said:
It's a feature not a bug.
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Click to collapse
It does not matter if it is intended or not, he is looking for how to disable or fix it...

AnchorPoint said:
It does not matter if it is intended or not, he is looking for how to disable or fix it...
Click to expand...
Click to collapse
I know , and the solution is already available so...I was just confirming.

Travrew said:
I'm having the same issue on my S7. Pretty annoying.
Edit: Found a solution here: reddit.com/r/samsung/comments/4a5kkv/when_i_open_certain_games_the_screen_dims_but_the/d0y94nq
Click to expand...
Click to collapse
That does fix it but you don't need to install package disabler pro.
Go to Settings/Applications/Application Manager/More (upper right)/Show System Apps/ then scroll down to "GameService" and disable
I had tried Disabling Auto Brightness, turning off Adaptive Display and Power Saving but turning off GameService finally worked.

thanks
hey thanks alot. i appreciate it. now if i could just get this thing to cool off. thats the mosst disappointing thing about the s7 other than the screen triping out every once in a while, oh and the lag issue, and that they took out the ir function although i much rather have the expandable memory & Micro sd slot, the lack of volume is a disappointment, and the fact that i still haven't received the vr free gift package that t-mobile promised even tho i pre-ordered on the feb. 23 and got the phone like a week later. did i mention how hot this dam thing gets? my s6 got hot a little bit but this is horrible. kinda makes me want my s6 back.

crash66 said:
hey thanks alot. i appreciate it. now if i could just get this thing to cool off. thats the mosst disappointing thing about the s7 other than the screen triping out every once in a while, oh and the lag issue, and that they took out the ir function although i much rather have the expandable memory & Micro sd slot, the lack of volume is a disappointment, and the fact that i still haven't received the vr free gift package that t-mobile promised even tho i pre-ordered on the feb. 23 and got the phone like a week later. did i mention how hot this dam thing gets? my s6 got hot a little bit but this is horrible. kinda makes me want my s6 back.
Click to expand...
Click to collapse
It shouldn't be getting hotter than your s6. Granted it should get slightly warm, but my biggest issue with s6 edge was it would get scorching hot to the point it was uncomfortable. This phone never gets that hot for me. So keep an eye on that, or hand?
Sent from my SM-G935V using Tapatalk

Been running into this with my relatively new S7 Edge and the Package Disabler Pro approach with gameservice seems to have done the trick for me, too. Thanks!

This is happening on crazy spammy's note 10 + as well
Got it root'd up but don't see game service when searching for it in titiamum backup

I recently got the same issue on my S10. And couldn't find the game service too. Have you found any solution for this issue?

S7 External SD notification card reading issue

I have read on many forum about the issue of the external SD being somehow "ejected". People tried every possible solutions, including buying new SD cards, reformatting, etc. I had this issue myself. I did not find any solution neither anyone has found one on other forums. But 2 days ago I did found it.
Everytime you restart your phone, the issue will come back. In order to get rid of the constant notification, here is what I found. It is not a hardware problem (bad connection, etc) neither a software issue as everybody believes.
It is simply that the phone need to scan the SD everytime you restart it. And the notification will continue to come back until you do this.
1) open the notification. This will bring you directly in your SD content.
2) open each folder you have on it. This will make the phone scan it's content. And you have to do it in order to get rid of the notification.
This needs to be done everytime you restart the phone. Once you have done the 2 steps above, your SD content will stay "locked" untill you start the phone again.
I have been a long time member of xda and I did not post for over 2 years. So if my post is not in the right section please do not hesitate to move it to the right section / tread.
Thank you and I really hope this will help a lot of of us.

it is a hardware problem. my replacement unit doesn't have this issue at all with any of my cards.

Thanks
I got my phone on the 11th. Can you tell me when you got your replacement? Thanks

mannequin said:
it is a hardware problem. my replacement unit doesn't have this issue at all with any of my cards.
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Click to collapse
Can you tell me how long you have had the new phone? I have gone about a day without the notification and I just want to make sure that your new phone has gone several days without the issue. I had my phone replaced already last Saturday and the new phone is doing the same thing as the old phone. If it is actually a hardware problem, I have gotten 2 bad phones. I would hope this is unlikely or Samsung has a big problem on their hands.

skiddingus said:
Can you tell me how long you have had the new phone?
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my first unit was February build with all kinds of issues: reoccurring SD card notification, poor screen uniformity, audio distortion through headphones when the phone was upside down, too sensitive screen.
the new phone (March build) i got last Wednesday has none of those, zilch.

Are you really sure it's an hardware related issue ?
i also have the same problem...

daibaron said:
Are you really sure it's an hardware related issue ?
i also have the same problem...
Click to expand...
Click to collapse
how do you explain it otherwise? first phone had it with any card at random intervals, the new one has zero.

i used adoptable storage and the message disappeared... the memory management is different that's all
i think this may be related to some Roms since all S7 owners are not all concerned

I have just read this.
However, I know lots of people complaining this did not fix the issue : www.gottabemobile.com

And this too
http://www.ibtimes.co.uk/samsung-galaxy-s7-galaxy-s7-edge-troubleshoot-issues-how-fix-them-1549519

Well I went to best buy and got a second replacement phone today. I'm at almost 12 hours now without the SD card notifications. Keeping my fingers crossed.

My notifications have died down after the recent security update on T-Mo. Maybe just a coincidence. It's also encrypted.

skiddingus said:
Well I went to best buy and got a second replacement phone today. I'm at almost 12 hours now without the SD card notifications. Keeping my fingers crossed.
Click to expand...
Click to collapse
restart your phone, bet it comes back

HTCMDA said:
restart your phone, bet it comes back
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Click to collapse
I've restarted it a dozen times. Both notifications always appear after a restart. This is normal. I was getting the notifications randomly throughout the day. Sometimes certain apps would also lose access to the card.
I'm at 20 hours now with no random notifications. It's looking good.
---------- Post added at 07:16 AM ---------- Previous post was at 07:15 AM ----------
_Gir_ said:
My notifications have died down after the recent security update on T-Mo. Maybe just a coincidence. It's also encrypted.
Click to expand...
Click to collapse
The update didn't seem to help my phone on Verizon.

Totally solved for me
I just wanted to update you. I did the procedures as mentioned in the links I posted above.
One of the step involve to "slowly" replace the tray in its position. Ensure you do it.
I did not use my pc adaptor to do my backup on my PC. I used a usb connected to the phone.
One thing though: I had only 14gb of data on my card. I was able to move it all to the phone (as well as the pc) and this brought me to 31gb in my phone. So when I re-formatted my SD using the setting from the phone, I was able to just re-transfer the content on it from the phone without using my pc backup.
It has been 3 days without any fault reading and notification pop-up.
For those who have way more stuff on their SD, I would ensure that you transfer them from the phone on your pc, and not using a SD adaptor directly in your pc. I do not know if this makes a difference, but I would not take the chance. Use the USB adaptor (phone to pc).
Also, I have noticed that all the treads around the web which dealt with the subject (not only on xda) have since a week or more got quiet, which means that the issue is kind of resolved.
Putting back the tray slowly in is one of the KEY procedure to follow. This does mean that the tray is kind of not perfectly designed (hardware issue). So it is a possibility that some of you do have a somehow more sensitive tray. It also means that it may degrade overtime (with the cold, and heat, sun, etc.). This tray should not have been designed with weak material (ie: rubber). It should have been made with hard plastic or something else. This decision may have been made for the waterproofing of the device. However, I believe that they could have sealed it properly using stronger material.
We have a one-year warranty and the summer is coming. If you feel that it degrades overtime, return the device. I would not do so right now as the production lines will not adapt to this problem for a few months. I would say 6+ months.
I hope this helps.

skiddingus said:
I've restarted it a dozen times. Both notifications always appear after a restart. This is normal. I was getting the notifications randomly throughout the day. Sometimes certain apps would also lose access to the card.
I'm at 20 hours now with no random notifications. It's looking good.
---------- Post added at 07:16 AM ---------- Previous post was at 07:15 AM ----------
The update didn't seem to help my phone on Verizon.
Click to expand...
Click to collapse
In your case, I would suggest getting a replacement. See the post I just made. 2 minutes ago.
Good luck to you all.

Christian99 said:
In your case, I would suggest getting a replacement. See the post I just made. 2 minutes ago.
Good luck to you all.
Click to expand...
Click to collapse
The update didn't help but the 2nd new phone seems to have fixed the problem. I'm over 24 hours now with a notification. I think it is finally fixed. I still can't believe that I had 2 bad phones in a row but it appears to be what the problem was.

Repeated Micro-SD Mounting Notification Issue - Potential Fix

Alright friends. The Micro-SD notification issue that a startling number of people have been having. I have also been suffering this issue and did not want to believe it was hardware based. I have believed since the beginning, that this is an issue with doze settings killing power to the internal SD slot. I managed to track down what I believe to be the offending service that doze is messing with. Follow the instructions below to fix this:
1. Go into system settings and select 'battery'
2. From the battery settings, select 'battery usage', and within battery usage, select 'more' at the top right of your screen
3. Select 'optimize battery usage' within 'more', and switch the drop down in the next screen from 'apps not optimized', to 'all apps'.
4. Locate the 'External Storage' service, and set the slider next to it into the off position. This keeps doze from messing with this.
5. Make sure 'External Storage' shows up in the list of apps that are not optimized now - Profit
I have been using this for the last 24 hours and have had absolutely zero SD mounting/unmounting notifications outside of the required one when you reboot your device. I really hope this works as well for everyone else in here as it worked for me.
Please let me know if this setting works for everyone else in the thread below this OP.
MODS: Please pardon if I have placed this thread in the wrong section. I didn't see anything else related to a solution in any of the other selections, so I figured I would share these steps which seem to be working for me.
Thanks all.
PS: I do not know if it matters or not, but I advise a format of the SD card as well through the storage settings on your device. I did that after following the above steps as well.

This might also be applied to alarm apps to fix problems with them failing to go off.
Sent from my SM-G935T using XDA-Developers mobile app

Tried this before bed last night. Didn't format sdcard though, dont see what that would do. Anyway, woke up this mornin to an sd card notification :/ one thing i did notice though, instead of the screen slooowly fading on when turned on, it instantly turns on now. So it's definitely affecting something.

Worth a shot. Nice find!

I disabled battery optimization weeks ago and still got the SD card notifications. This isn't the issue. I'm 99% convinced this is a hardware issue.
In regards to alarm apps. Yes turn off battery optimization for them.
Sent from my SM-G935T using Tapatalk

Thanks for the feedback guys! Yes. I did receive a notification over the night while I was sleeping as well. The notification that happens over night is the only one I am receiving now though. I definitely consider this an improvement. I can live with one a day (not including if you reboot the device). I was getting the SD ejection/reconnect notification no less than 10-15 times an hour or so before this. I suspect that the external storage still goes into a low power mode or something when the phone is left in a state of prolonged inactivity such as during the night while we are sleeping. I am not sure if there is anything that we can do about that particular problem from our end though. I am admittedly not savvy enough to dig into the code.
I suspect that wonky/overly aggressive doze/optimization settings are to blame for a few issues that people are having with this device. I have noticed that the optimization settings are a bit of a mess. Go through and see what else y'all can figure out as well by tweaking these things. Feel free to keep the thread going with those findings.
I wonder if this is just how doze treats external storage....I wouldn't know. I have been a primary Nexus user for a while before the S7 Edge (still have a 6P as well) and as you know. There isn't any external storage in that line to 'optimize'...Lol

jrwingate6 said:
I disabled battery optimization weeks ago and still got the SD card notifications. This isn't the issue. I'm 99% convinced this is a hardware issue.
In regards to alarm apps. Yes turn off battery optimization for them.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
Interesting.....did you also turn optimization off for SystemUI as well? I have noticed a marked improvement by disabling optimization for both SystemUI and External Storage. I have what seems to be one of those problematic Vietnamese originated models.
I have a replacement coming in the mail and I will test both for a few days before sending one back to T-Mobile

For any in here who were interested about a follow-up. I have since received and switched out my devices. My new device is now 24 hours in, and not a single SD notification, excepting the one at the time of device reboot.
@jrwingate6 might be correct about the hardware thing.
I haven't messed with optimization settings either on this one. It just works.
I did still notice a marked improvement with the optimization settings tweaks on the device that was having the issues though

This is without a doubt 100% hardware related. I advise anyone having this issue to replace the device ASAP.

LuigiBull23 said:
This is without a doubt 100% hardware related. I advise anyone having this issue to replace the device ASAP.
Click to expand...
Click to collapse
I totally agree with you after my experience between my device purchased on release day, and the one I have now.

I got an early release too and was the first to make a post on this issue and no one knew what I was talking about. Long story short, I had to get a replacement and have not had that issue with this new phone

LuigiBull23 said:
This is without a doubt 100% hardware related. I advise anyone having this issue to replace the device ASAP.
Click to expand...
Click to collapse
lol i even taped the crap out of the sd card, and it got worse
---------- Post added at 11:12 AM ---------- Previous post was at 11:10 AM ----------
so how exactly did we come up with doze being the issue?
---------- Post added at 11:33 AM ---------- Previous post was at 11:12 AM ----------
went ahead and asked for replacement on live chat. have had s6 replaced once before never said anything about $5 exchange fee till now

It can be a faulty SD card or a non Samsung one that isn't playing nice with the S7 Edge.
My fiancée and I both have the S7 Edge and we both have the Evo+ (64gb from Samsung) and we DO NOT get any SD card notifications other than when we reboot our phones.
Sent from my SM-G935T using XDA-Developers mobile app

I'll add this to the mix:
S7 edge silver on vzw. Have been getting the notification a dozen times a day.
So I put lots of music on the SD and set it to continuously shuffle through (with the volume all the way down). Not once during the play has the notification shown up. Also hasn't shown up while transferring massive files onto this SanDisk 200GB.
If I actually eject the SD during playback, PowerAmp stops playback and doesn't resume when the card is reinserted. So I know the notification is not from the card being physically disconnected in the slot, because the music plays for hours on end in shuffle.
This supports the doze theory because the active read would keep the storage manager from sleeping.
So to make this a hardware problem, we need a hardware defect where the card is repeatedly identified as being inserted, but only when data is not being transferred to/from the card.
However, this does not explain reports of replacement phones not having the notification issue. Unless those users are configuring the replacement differently than the original.
Anecdotally, has anyone seen the S7 trigger a card notification while read/write to the SD was executing?
Sent from my SM-G935V using XDA-Developers mobile app

I do not have my s7 edge until mid week but did you guys try going into app info for the SD card mounting app or service and turning off notifications?
Sent from my LG-D851 using XDA Free mobile app

Richieboy67 said:
I do not have my s7 edge until mid week but did you guys try going into app info for the SD card mounting app or service and turning off notifications?
Sent from my LG-D851 using XDA Free mobile app
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Click to collapse
Yeah dude. That doesn't work this time around. The notifications still happen. The only way I found to get a marked improvement on this matter (outside of an outright exchange) is to turn off the doze setting for External Storage. This seems to dramatically improve things, but not make it perfect. I gave up the good fight about a week ago or so and had a replacement shipped to me. I haven't had a single issue with the SD notification since in the new device, and my setup is exactly identical to my original device. The only difference is that I haven't had to mess with the doze settings.

the only fix. tell your customer rep you have unmounting/mounting issues and you have done factory reset/ clear cache. tried 2 or 3 different SD card or tried SD card on another phone and it works. have them replace the phone and done. had tmobile replace my phone, fastest ever. got it in 2 days and i live in hawaii! 2 days usually means 4 or 5. but no SD card notification for 3 days now. only get it on restard

I used to only get it on reboot and now it's 2-3 times a day. Wonder if it's just the sim tray? I'd rather shell out a few bucks for one than buy a whole new screen protector and dbrand skin. Lol
Sent Via My Samsung S7 Edge

I posted earlier (above) trying to explain why this could be a software problem, but it isn't. It's hardware. Swapped out the S7 edge at the about 12 day mark with VZW and got a new phone. SD notification only on restart now. Rep asked if the phone was losing the SIM as well.
Anyone noticed also that the new posts of SD problems stopped about two weeks ago? Because they fixed it after the initial run.
Sent from my SM-G935V using XDA-Developers mobile app

I just ordered a replacement because of this issue, it does seem like i am having slight network performance issues as well. We shall see.

Shield Tablet keeps shutting itself off

This has happened four times. I close the cover, set it down, and pick it up a few hours later. It's off. Turns on, doesn't overheat, battery lasts a decent amount of time. It's not draining dead, just shutting off for no reason.
I checked the Performance/Power section in the system settings, and it's set to NEVER auto shutdown, yet it's doing it still. And the lowest you can set it to is six hours, but it's turned off in half that. What is its deal?

Same here. It doesn't seem to happen while charging and it only occurs while the tablet is closed. So far, disabling daydream (screen saver) seems to have suppressed it even though the screen saver is not active. Mine is LTE also.

cactys said:
Same here. It doesn't seem to happen while charging and it only occurs while the tablet is closed. So far, disabling daydream (screen saver) seems to have suppressed it even though the screen saver is not active. Mine is LTE also.
Click to expand...
Click to collapse
I'll try that, thanks!

Another bug could be a faulty SD card. And yes, daydream slows down the performance!

Niii4 said:
Another bug could be a faulty SD card. And yes, daydream slows down the performance!
Click to expand...
Click to collapse
Nah, it's a brand new Samsung Evo card. Everything was working fine until I updated to 4.4. Now this, and also Settings crashes if I try to edit my user photo.

Updates, huh. Usually they demand a factory reset to work properly. Funny thing, the devs never foretell you.
I also have a Samsung Evo+ card. Does the job.

Niii4 said:
Updates, huh. Usually they demand a factory reset to work properly. Funny thing, the devs never foretell you.
I also have a Samsung Evo+ card. Does the job.
Click to expand...
Click to collapse
Well, it wasn't a major update. Still 6.0.1 to 6.0.1, just a security patch update, which they are way behind on.

Security patch update.. yeah, so that they can spy better. As said, OS updates are usually bad for they are done for factory reset devices, which no one has.

Appalling Fingerprint reader

My fingerprint reader keeps disabling. I have to turn phone off and back on (reboot is not enough). However then all the apos detect a Biometrics change and I have to reenable fingerprint login for each app.
Even when it works the reader is super sensitive and keeps telling me I've had too many attempts before i pick up the phone.

While I do get the too many attempts thing I haven't had the fingerprint reader disable on my phone

For me its working just perfectly.

It works perfectly for me as well. I have found that using a case helps a lot with false reading attempts.

I also use a slim case and I'm having a very positive experience with the fingerprint reader.
Coming from a Pixel 2 XL with a reader at the back, it took me a few days to get used to thumb based unlock.
But now, I find it much more reliable than the Pixel 2 XL reader, where fingers moisture was a real pain.
Same hands (different finger being used on the 5ii and it works almost 100% of the time (and quick too).
Stock ROM and launcher.

arturiu said:
I also use a slim case and I'm having a very positive experience with the fingerprint reader.
Coming from a Pixel 2 XL with a reader at the back, it took me a few days to get used to thumb based unlock.
But now, I find it much more reliable than the Pixel 2 XL reader, where fingers moisture was a real pain.
Same hands (different finger being used on the 5ii and it works almost 100% of the time (and quick too).
Stock ROM and launcher.
Click to expand...
Click to collapse
What case are you using?
also my fingerprint sensor is absolutely flawless I haven't had any issues or anything that has caused me to be concerned or despised the fingerprint sensor. maybe I'm lucky or maybe I just knew how to set the fingerprint up properly I don't know but my experience with it has been positive

thepersona said:
What case are you using?
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Click to collapse
https://www.amazon.co.uk/GEEMEE-Waterproof-Anti-Scratch-Protective-Transparent/dp/B08H5931YQ

arturiu said:
https://www.amazon.co.uk/GEEMEE-Waterproof-Anti-Scratch-Protective-Transparent/dp/B08H5931YQ
Click to expand...
Click to collapse
Damn it doesn't appear that that case is available in Canada or even the US. Oh well hopefully more cases turn up when the device releases in the US

Try adding the same finger a few times. I haven't had any problems since I did that.

Do you also have this issue, that while calling, you accidentally click on the fingerprint sensor and so activate the screen while it is 'at your ear' and so you 'click' on several options and so on? It happens a lot, I have accidentally adjusted with my ear the brightness or paused the call etc. Very annoying!

I struggled a bit at first to have my fingerprint recognized when trying to unlock, often ending up typing my pin instead.
I noticed a huge improvement by sliding my thumb upwards on the sensor, instead of just pressing it still. Now works almost all the times.
November update might have improved the situation as well.

Not sure if it's something to do with a recent update but my reader is not recognising my fingerprints very well at all now. Anyone seen problems?
The other potential issue is that I've been doing a lot of DIY lately and probably worn away some of the detail on my finger ends .

wazzaworld said:
Not sure if it's something to do with a recent update but my reader is not recognising my fingerprints very well at all now. Anyone seen problems?
The other potential issue is that I've been doing a lot of DIY lately and probably worn away some of the detail on my finger ends .
Click to expand...
Click to collapse
Mine still on 58.0.A.22.21 as it's US variant but recently I am also facing issues with fingerprint scanner if the phone is in (deep?) sleep mode. Earlier it used to be just touch and go but now had to press it or try multiple time to unlock it.
Not sure what's the issue here?

No problems with my FPR. Occasionally it requires a couple of tries but that's true of every single phone on the market.

Mine seems to be working well. I am coming from a P30 Pro with the underscreen sensor, and I had a few Xperias before that. This is by far the fastest Android fingerprint sensor I've used. it seems to instantly recognize everything. It's probably on par with my pre-face ID iPhones, but i don't have one of those anymore to compare it.

I ended up disabling the fingerprint reader completely. Never works from first try when I need it, but somehow easily unlocks when I actually don't need it, as in when just holding it, putting down or in pocket. Also all those buttons on the same side is a really poor design choice, specially power right under volume. Btw, is there a way to disable the assistant button?

hovikg said:
I ended up disabling the fingerprint reader completely. Never works from first try when I need it, but somehow easily unlocks when I actually don't need it, as in when just holding it, putting down or in pocket. Also all those buttons on the same side is a really poor design choice, specially power right under volume. Btw, is there a way to disable the assistant button?
Click to expand...
Click to collapse
Everything I have read, says there's no way to disable it. I'm very surprised I have yet to activate accidentally. But, that might be because the button covers on my case are kind of stiff.

hovikg said:
Never works from first try when I need it, but somehow easily unlocks when I actually don't need it, as in when just holding it, putting down or in pocket.
Click to expand...
Click to collapse
I get the exact same behavior. Very frustrating. Totally disappointed with the fingerprint scanner.

hovikg said:
Btw, is there a way to disable the assistant button?
Click to expand...
Click to collapse
You can disable the assistant app. But if course this is only a solution if you don't use the Google assistant at all.

My favorite fingerprint reader was the Pixel 3 with the reader on the back of the phone. My least favorite has been the under-screen readers on my Huaweis. The reason is less accuracy and fingerprints.
I've had my Xperia 5 ii for a day, and have been on it a lot, and the fingerprint reader has been excellent. My problem is finding it and not dropping the phone while I look.