Database Users

[Q] Samsung Galaxy i5800 Lag problems

I just bought the Samsung Galaxy 3 several days ago. The first thing what I did was unpack the package and boot up Odin. I haven't ever seen/used the stock rom.
The first ROM I tried was InDroid 4.1. Looked nice, but sometimes I had a lot of 'lag' and for instance, when I tried to open Talk (I was already online) it took about 20-25 seconds to view the contactlist. Sometimes everything was working smooth en sometimes all apps were lagging like hell. I tried to reset the factory settings in the recovery mode, but it didn't help.
After that I thought maybe the rom wasn't so good so I tried to flash the stock rom back. I used the newest stock rom from this topic. But I couldn't get it working, it hanged always on the boot screen ("Samsung i5800") and the recovery mode didn't work. After that I tried to flash the newest Kyrillos' rom but I couldn't get that working either.
After that I tried the Dharam's Stock Performance Rom. This rom was working a lot better and it didn't "freeze" so much, but sometimes it does freeze. I tried my phone also without my SD card (Kingston 4GB Class 4 SDHC) and now it does freeze a lot less. (but it does sometimes and some apps are useless now (like Spotify)). Don't know if it is accidentally that it does not freeze so much without the SD card.
Well, I don't know if these freezes are normal, I can't check the stock rom (because I couldn't manage to flash it) but it is very annoying when you are texting somebody, emailing somebody or talking to anybody that you can't type normal (like 1 char/3sec) or that you have to wait very long until something shows up.
Btw, some more information: it doesn't matter how many apps I have open, sometimes it does freeze with only two apps open in the task manager and for instance, now it is working fine with 11 apps open in the task manager. Pretty weird. There is about 200 MB free from the 245MB.
Maybe that somebody can help me out or can confirm that this is normal.
Edit (21:37): Ok, well I tried tonight to run several apps together, like Spotify, Twitter, Facebook, Runkeeper, Maps, Navigation, and some more. It wasn't as fast as my previous phone (HTC Desire) but it didn't lag like I described above. But when I run just 2 apps (like 'Messages' and 'Whatsapp' or just some other random combination (or sometimes nothing)) it can lag like hell. Don't think that it is lagging because of the amount of programs that I am running, but because of something else. But I can't find out what.

I just accomplished to flash back the stock XXJPM from samfirmware. I tried already the CPU frequency scaling but that didn't help either.
No problems for now..

I use bojpc from samfirmware and my phone lags alot too. Sometimes it gets stuck and reboots on his own!

Hmm, now I don't have any problems at all.. Only Spotify lags a bit when I use a lot of apps together, but I guess because that's spotify and this isn't a really fast phone.
I only miss a few things like the advanced battery icon and some other handy things. But that isn't a big deal.
Don't know if I'm gonna try another custom rom, maybe when 2.4 Fugumod is out of beta.

Sound lags during music playback

Hi guys. I got myself a 32gb, wifi only version of N7. Upgraded it instantly to 4.2.2 . Nothing to complain about in the first 2 days.
After that, I noticed that, when I play music (stream through upnp on local network or play mp3 / flac files on local storage - tested several players, bsplayer, google player, poweramp...), and do some other stuff on the tablet at the same time - surf, or just 'click around', or swipe through my documents - occassionally I experience short sound dropouts, like the I/O-load would be too high or something. Please note this isn't bluetooth thing some people experienced, I use regular phones. It happens sometimes when I do some trivial stuff...noticed it all over the place, while starting an app, surfing, writing something in the Google search window, searching people on FB, opening a browser (empty) tab, even clicking on application button to see the list. It can be really anything, it doesn't happen a lot but it's there.
I googled the problem but couldn't find anyone with similar issues. Read on the other hand a lot about general performance issues of the Nexus 7 after 4.2.2 upgrade, about (visual) lag, so I figured, even though my eye didn't catch that on my device (this is my first experience with 4.x.x so it looked fast and smooth enough to me), I decided to revert to 4.1.2 and see whether there would be any difference. I can't say I could see/hear improvement, maybe a slight one, but I still get to experience occassional chops in my music, which is very annoying, this should be ridiculously easy for a 4-core processor to accomplish. It's unacceptable. I even checked that CPU wasnt overloaded when these chops occured (in fact, it was only around 25%-30% when the chops occured, perhaps the peaks were too short for program to register them - I dunno)...
I also tried everything people suggested here regarding general performance issues, disabling this and that, Currents, factory resets, cleaning cache partition...you name it. Nada.
Anybody experienced similar thing? Don't know if I have faulty unit or if this is bug in software (Samsung Galaxy S3 had a similar thing when it got out, even though the sound pops were of different nature and occured under different circumstances - took several software upgrades until it got fixed)...I'm thinking of returning it and go for iPad mini or something.
Thanks in advance for any feedback.

The results of this have varied but there are some who attest that this works.
Have you disabled auto-sync in Google Currents (Blue Circle Icon)?
If not, try that; this has worked for me.
Open up "Google Currents" Hit the 3 dots on the top right -> Settings -> Scroll down and UNCHECK "Enable background sync"
Remember these results have varied, but it fixed the issue with my tablet. Also I heard there were some issues (although if someone can confirm them further for us--that'd be appreciated!) with the RAM in many Nexus 7s so stressing out the ram and filling up your SDcard to the max will cause it to have stutter issues too.

Hi and thanks for the suggestion,
Disabling the background sync in Google Currents was actually the first thing I did. I believe I tried out everything that was suggested so far on the net regarding the general performance issues. I used Forever Gone app to fill up all space and then delete it, I wiped the cache partition in bootloader mode, I even did a factory reset, and eventually I re-flashed it back to 4.1.2 (it did improve then but the music lag / pops were still not entirely gone). SD-card space-thing cannot be the issue either as I have like 23gigs free.
Now I even noticed that video playback is effected by occasional sound pops. When I play video in full screen, not doing anything else, it still happens. Rarely but it does happen.
TheAltruistic said:
The results of this have varied but there are some who attest that this works.
Have you disabled auto-sync in Google Currents (Blue Circle Icon)?
If not, try that; this has worked for me.
Open up "Google Currents" Hit the 3 dots on the top right -> Settings -> Scroll down and UNCHECK "Enable background sync"
Remember these results have varied, but it fixed the issue with my tablet. Also I heard there were some issues (although if someone can confirm them further for us--that'd be appreciated!) with the RAM in many Nexus 7s so stressing out the ram and filling up your SDcard to the max will cause it to have stutter issues too.
Click to expand...
Click to collapse

Returned it and took money back. Will look for other options soon. This thing was too 'beta' for me.

[Q&A / Help] Kingroot Destroying my Galaxy Tab 4

Model: Galaxy Tab 4 SM-T230NU
Kernel Version: 3.10.0-6808427, [email protected] #2
Build #: KOT49H.T230NUUEU0APA1
OS: Android 4.4.2 KitKat
So long story short I've had my tablet for years now with absolitely no issue at all whatsoever. It's been fast, effectve, and I've had no complaints for it. I was however bored with some of the useless bloatware on the device so I decided to root and remove some apps. I don't have access to a computer so I took the Kingroot (not Kingoroot) route and it worked fine no issues easy process.
After setting that all up I removed some of the bloatware apps as desired (nothing critical: Netflix, google+, google hangouts, some printer app, and hancom office or something).
After a few hours I opened the Kingroot app after noticing my notifications were being blocked by the app and i sorted that all out but it made me also install the Kingroot Purifier app and started messing with all my stuff killing tasks and everything. I instantly uninstalled it cause I know those apps are bad and I didn't bother with it again. Shortly after I noticed my tablet becoming slower and slower for no reason at all while doing the same things I've done on it for years now.
I looked at my processes and everything to notice my RAM was being used up entirely. I know that unused ram is useless ram with phones and tablets but when I restart my tablet now I start at about 600-900mb of free RAM and it constantly fills up and up and up over a couple hours if I'm lucky until there is less than 15mb of RAM left, everything freezes, apps crash, videos suffer fps drop, and eventually I'm forced to restart it to repeat the process. This happens every hour or two depending on how many apps I open.
Now I've been noticing that when I open my active applications list in Android settings that it ALWAYS shows that there is NOTHING in it using any memory at all which I know is not right because I've had this tablet for years. After all of this I uninstalled Kingroot, deleted any and all files I could find with my file manager, restarted, and now I just have an unrooted tablet with a retardedly annoying ram issue.
I went to sleep last night and woke up to my screen being entirely frozen, and some sort of SD card icon on my notifications I've never seen before and couldnt read due to the whole thing being frozen. I've factory restored and everything and the issue still persists. I feel as if the purifier app from kingroot effected the default android app killer and its ruining my experience with my device that I've had 0 issues with for years until the day I decide I want to remove some bloatware... can someone help me?
I've read all kinds of topics on all kinds of sites and it's all dumb people that don't know how to address issues or answer them. Thanks in advance.

Still having the same issues. It's getting to the point where even my keyboard stops showing up after a while or will pop up and instantly close.

Need Help Finding Root Cause of UI slowdown

Hey all,
So I've had my S8 since launch and I've enjoyed it but I have an issue that I've been trying to pinpoint the cause of for a few weeks now. At a high level, if I reboot the phone in the morning, I can use it all day as I wish and it works perfectly, no slowdown anywhere and good battery life. I plug the phone in at night when I go to sleep and when I wake up I start using it again. Either right after I wake up or over the course of a few hours the phone begins to slow down with things like notification shade/app switcher crawling until I either a) reboot or b) change display resolution. Doing either of these "fixes" it until the next night and then again when I wake up I have the same issues.
I've been trying to figure out what's causing this. I've tried disabling features, uninstalling apps, etc.
One thing I have found is that when I'm having this problem if I force close 'System UI' in App Manager (this is just restarting that process since you can't kill it really) the smoothness comes back but it doesn't last as long as when I either reboot or change resolution.
My theory is that something is conflicting with the Android UI and over time it's causing it to slow down. Rebooting or changing display resolution restarts the Android UI so essentially same thing.
My first question is has anyone seen this behavior where the notification shade/app switcher (native UI not apps) slow down? I know there's at least some people on Reddit with same issue. If you have this issue does FC'ing System UI 'fix' it for you temporarily?
I'm trying to figure out what is running on my phone while I'm sleeping at night which is obviously causing this. Any ideas would be helpful. Oh also when I wake up and I go into app switcher it only shows like 3 cards where before I go to bed it would be like 10+ so something is killing apps at night too. I turned off Google backup for today and will reboot before tonight to see if maybe that's it.
Appreciate your help.
Thanks.

I've had my S8+ since the launch weekend on ATT, always connected to my Gear S3, and connected to my Misfit Ray. I've not noticed any slowdown of the UI. My AOD clock is slow to show the hands if the screen is off when I use the numerical clock AOD, but nothing else observed.
I would guess you've installed (or haven't uninstalled/disabled) some apps that are using a lot of background processes. I removed/disabled the few ATT apps on the device except Call Protect, and I don't use Gmail (resource hog). I actually use very few Google apps, they're just not very well coded, it seems (maybe a "goof off" day every week isn't such a great policy?)
In settings, go to Device maintenance, click on battery, and see if anything strange is going on there under App power monitor.
I've NEVER liked Samsung phones, and I've NEVER been interested in owning one, but I saw the Galaxy Gear S3 and fell in love, and truthfully, I bought the phone as an accessory to the watch, so I'm not an apologist for any shortcomings.

Instead of restarting, go to settings/device maintenance, what's the percentage here? go to optimize, does it help? which apps use the battery most? How much RAM is available. If nothing shows up, you probably would need something like wakelock detector (it needs root) to trace apps usage, especially at night. Also you could try to force stop other apps and see which one is interfering? For example phone is slow, force stop first 10 apps, if not fixed force stop next 10, if fixed, next time force stop one at the time from that batch of tens.

Mines just started doing this the other day. I think I have an idea if the problem, I'm just trying to find proof at this point. I recently downloaded this all to let me see the upload/download speeds if my network in the notification bar. It lets you set the refresh rate, to which I set it to 2 seconds, which I knew regardless would tax my system, I just didn't expect my ui to slow to a crawl.

Delete any Bixby remapping app as well, known to cause many issues including unpredictable lag.

S8+ Intense Lag/Glithces after May Update (last update)

Hi there,
The S8+ (Exynos) was the smoothest phone I've ever had. It ran perfectly, with no lag/stutter whatsoever, it was butter smooth. That until the last update...(The May update with Bluetooth and SD card stability ; Android May security patch).
Now, the phone lags/stutters/drops frames in everything - it affects the UI animations, the scrolling in almost every app (even in settings), any game (even the least demanding game), browsing, the phone also has keyboard input lag. It also scores very low scores in benchmark apps (about half of what it should score). The phone also heats up for no reason, especially during charging (it was never heating up before the update).
What I've tried (with no effect):
- Disabling all features from Settings, down to the smallest details. Disabling all bloatware apps from settings (Samsung apps, Word, etc.).
- Cleaning Cache/RAM/Junk files with Device Maintenance, Clean Master and SD Maid (and uninstalling those apps afterwards)
- Manually cleaning cache from all apps (all 300+ of them, including system apps)
- Manually force stopping all apps (all 300+ of them)
- Uninstalling all User-installed apps
- Wipe Cache from Recovery Mode
- Manually stopping all running Services from Developer options
- Setting no backround services option in Developer options
- Disabling all safe-to-disable apps (including system ones) using BK disabler
- Several Restarts
- Complete factory reset (from Recovery Mode) and instaliing all apps from scratch. Then, doing all the things above.
----
PS: Animations are not only lagging/stuttering, but they are also glitching in some way (hard to describe, but little artifacts appear when minimizing/maximizing apps).
The screen also developed slight burn in (visible on gray image) in the notification and navigation bar area, although I use it with less than 50% brightness and with AOD disabled
Nothing worked. The phone has very brief moments when the animation lag dissapears, but then it starts back. The phone is now working worse than it did with the Battery Saving Option activated before the update.
I am aware that probably most of you don't have this issue. If you know anything that could help, please tell me.
Should I take it to warranty ? ( I'm afraid that they will open it up and it will loose its water resistance)
Thanks.

There is a dedicated S8+ forum section:
https://forum.xda-developers.com/galaxy-s8+

M. Tomescu said:
Hi there,
The S8+ (Exynos) was the smoothest phone I've ever had. It ran perfectly, with no lag/stutter whatsoever, it was butter smooth. That until the last update...(The May update with Bluetooth and SD card stability ; Android May security patch).
Now, the phone lags/stutters/drops frames in everything - it affects the UI animations, the scrolling in almost every app (even in settings), any game (even the least demanding game), browsing, the phone also has keyboard input lag. It also scores very low scores in benchmark apps (about half of what it should score). The phone also heats up for no reason, especially during charging (it was never heating up before the update).
What I've tried (with no effect):
- Disabling all features from Settings, down to the smallest details. Disabling all bloatware apps from settings (Samsung apps, Word, etc.).
- Cleaning Cache/RAM/Junk files with Device Maintenance, Clean Master and SD Maid (and uninstalling those apps afterwards)
- Manually cleaning cache from all apps (all 300+ of them, including system apps)
- Manually force stopping all apps (all 300+ of them)
- Uninstalling all User-installed apps
- Wipe Cache from Recovery Mode
- Manually stopping all running Services from Developer options
- Setting no backround services option in Developer options
- Disabling all safe-to-disable apps (including system ones) using BK disabler
- Several Restarts
- Complete factory reset (from Recovery Mode) and instaliing all apps from scratch. Then, doing all the things above.
----
PS: Animations are not only lagging/stuttering, but they are also glitching in some way (hard to describe, but little artifacts appear when minimizing/maximizing apps).
The screen also developed slight burn in (visible on gray image) in the notification and navigation bar area, although I use it with less than 50% brightness and with AOD disabled
Nothing worked. The phone has very brief moments when the animation lag dissapears, but then it starts back. The phone is now working worse than it did with the Battery Saving Option activated before the update.
I am aware that probably most of you don't have this issue. If you know anything that could help, please tell me.
Should I take it to warranty ? ( I'm afraid that they will open it up and it will loose its water resistance)
Thanks.
Click to expand...
Click to collapse
A lot of the things you've done are probably what killed your performance. Disabling an app that another app is dependent on can muck up the latter. Similarly, poorly written low quality apps can be resources drains and may not play well with others. My virgin S8+ is shockingly smooth and I could care less about dormant apps I don't use being active or disabled as long as my phone performs well. I'd suggest a hard reset from recovery, loading your apps of respectable quality, and leaving your phone alone and enjoying it rather than turning it in to a science project.

Same issue here, no app disabled or locked but my S8+ is very slow and lagful.

@ m.tomescu
You know, when you factory reset because of problems, first thing you do is checking if the problem is gone. Only then are you supposed to reinstall your apps one by one.
Is it already bad after factory reset? Then your phone needs a repair, which most likely be a new motherboard.
When performed by Samsung official repair center, your phone will still have the same water resistance.
For a quick test you can enable safe mode, that will exclude everything you've installed.
PS. No lag here on exynos and latest update.
Verstuurd vanaf mijn SM-G955F met Tapatalk

Mine runs like a champ smooth and fast I personally don't like animation I disabled them. I have snap dragon virant I disabled like 25 bloatware with package disabler I have good battery and smooth experience I don't know why Urs is lagging.

I had similar issues on my S7 Edge, with updates destroying battery life. Still, I'd suggest doing a factory reset, installing your most needed apps first and just try using the phone for a week. No prodding, no monitoring etc, just use it and let the phone learn your routine, which data to cache etc and see how things are after.