A21s random reboots when task switching - Samsung Galaxy A21s Questions & Answers

Hi. I have a A21s model A217M, and I've been running into issues with it for a while. The phone randomly reboots when doing light multitasking, such as switching between my browser and WhatsApp. I've already done the usual procedure, such as doing a factory reset and reflashing the stock ROM with Odin, with no sucess. Anyone here has faced the same issue, and got rid of it? Thanks in advance.

Which apps specifically or is it with any app?
The problem maybe be the app. I would never install any social media apps... browser access only.
This is very atypical behavior for a Samsung... at least it use to be.

Any app, basically. It's really odd indeed.

JPCastillo2000 said:
Any app, basically. It's really odd indeed.
Click to expand...
Click to collapse
Did it always do this?
You already reflashed it. May be a hardware failure.

I would say it is a quite recent issue. I checked my last dmesgs and they seem to pinpoint to a memory allocation failure.

JPCastillo2000 said:
I would say it is a quite recent issue. I checked my last dmesg and they seem to pinpoint to a memory allocation failure.
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Click to collapse
The battery in good condition?

I was facing the exact same issue for months and I even reinstalled firmware, no luck but I turned off animations through accessibility settings and voila It's fixed

Related

Error - Application Already Exists when updating Market apps

It seems that many, if not all, of the apps I try to 'update' in the Android market generates an error on the Prime that says 'Application already exists' in the menu bar with an ! icon. This is annoying... I can uninstall / reinstall the app to get an update, but whenever I just click update in the Market, I get this error a lot.
Of course the application already exists! I'm updating it. Stupid Prime.
Does anyone have a fix for this? I searched the forum and didn't see anyone mention this annoying problem.
Are you getting system reboots?
Rumour has it the system reboots are a result of a failure while optimizing apps for ICS during the upgrade process.
Sounds like perhaps your OSs view of your apps is a little messed up...
teknomar7 said:
It seems that many, if not all, of the apps I try to 'update' in the Android market generates an error on the Prime that says 'Application already exists' in the menu bar with an ! icon. This is annoying... I can uninstall / reinstall the app to get an update, but whenever I just click update in the Market, I get this error a lot.
Of course the application already exists! I'm updating it. Stupid Prime.
Does anyone have a fix for this? I searched the forum and didn't see anyone mention this annoying problem.
Click to expand...
Click to collapse
seeknom said:
Are you getting system reboots?
Rumour has it the system reboots are a result of a failure while optimizing apps for ICS during the upgrade process.
Sounds like perhaps your OSs view of your apps is a little messed up...
Click to expand...
Click to collapse
No. Actually, I seem to have the least amount of problems with the Prime compared to most on the forum. Really, this issue and the weak GPS signal are the only ones I've had. Well, and the decreased wifi bandwidth when streaming bluetooth. But everything else generally runs smooth.
Two apps for example that I had this issue with... updating Google Voice and eTrade. Both of those for sure gave me the error that the app already existed. Uninstalling and reinstalling worked fine to grab the latest version.
Actually, I take that back. Sometimes when I do an uninstall / reinstall, it still says there is an update available.
teknomar7 said:
Actually, I take that back. Sometimes when I do an uninstall / reinstall, it still says there is an update available.
Click to expand...
Click to collapse
Unfortunately I have the same issue. I haven't found a good way to work around it yet. As you have found sometimes uninstalling works and sometimes not.
Sometimes uninstalling it, rebooting the Prime, then reinstalling it works. Although, that's still sometimes as far as I can tell.
I've just started getting this issue when trying to update Officesuite Pro, first time it's happened.
Oddly enough when first typing this reply my Prime locked up and rebooted itself, which it's not done before.
Never had a reboot under ICS, at least not yet. But quite frequently have this problem. So I guess there is no correlation between the two.
The only anomalies that I experience are Skype or Talk video calls that suddenly die. No FC or any other message, Skype or Talk just exit.
I bet these types of problems will go away with a root and a custom rom in the future. Wish Asus would release the bootloader unlocking tool already!
Try clearing the dalvik cache?
maxfac1234 said:
Try clearing the dalvik cache?
Click to expand...
Click to collapse
Can you do that on a non-rooted Prime? I'm just waiting for the official unlock tool to go through that process.
This has happened to me on select apps too. Particularly xe app and officesuite pro. Can't seam to update them to the current version no matter what I do. Unistall/reinstall, clear delvik, and clear market data hasn't worked for me
Sent from my I896 running ICS.
teknomar7 said:
Can you do that on a non-rooted Prime? I'm just waiting for the official unlock tool to go through that process.
Click to expand...
Click to collapse
Unfortunately no
I have the same problem, and i tried everything but it didn't work
Yeah... right now for me, it's Google Voice. And the worst part is, you can't get it to stop saying it's updating the market app even though it stops almost immediately. Annoying.
I get this sometimes, but I press update again and it updates fine
Sent from my Galaxy Nexus using Tapatalk
Random reboot is a normal way of life with android. A reboot here or there is nothing to worry about. Most of the time its from a bad app you installed. Now if you rebooting several times a day, then that's a problem. Its actually good to reboot or at least power down n then back on device every once in a while. It'll give device a fresh start on RAM and clear any mishaps that may have or could occur. Same deal with Ipad. They recommend rebooting every now n then for a fresh start and to have more ram available for use.
I haven't had this happen on my Prime, but I was having this same issue today on my Sprint GSII.
Not sure if this is a work around, but it just worked for me. Instead of updating the app from the 'my apps' section of the market, I went to the page in the market with the full app description. I clicked the update link there and it installed fine. I'll have to test this theory out more.
i too am facing similar probs. while updating WhatsApp and Skype too it shows that the application is already existing.
pls. note. both WhatsApp and Skype are under different Accounts
can this cause a prob that previously i would have installed it by 1 account and later on by another account when i changed the phone ?
pls. guide.

Business Calendar and Galaxy SII, wont save settings

I purchased this app and I am having an issue where it wont save the settings.
I posted on their help page saying I couldn't get it to save my settings and thought maybe I was doing it wrong, and got this reply.
Hello,
you are not doing anything from. This is a well known problem on some Samsung devices, since the update of Android version 2.2.1. The settings of some apps are not saved permanently. Once this problem occured, this will happen again and again.
As the problem seems to be caused by a bug in Samsung's version of the Android OS I am afraid to say that we can't do anything against it. We hope that Samsung is about to fix the reason of this in the future. Maybe you can contact the Samsung support, that they hopefully
accelerate working on that issue.So unfortunately your device is affected by this problem. Some people told us that a factory reset helps them out of this really annoying problem, but I won't guarantee for anything. That's up to you.
Best regards - Anthea Neums from Business Calendar Support
Now I have been running the Galaxy S since launch day and my Galaxy SII since December. I frequent the forums here daily. Yet I have never seen or experienced anything like this happening before. Is their reply BS or have I missed something in my readings? And if they are correct, is it fixable with a hack? I really like the program.
FireRaider said:
I purchased this app and I am having an issue where it wont save the settings.
I posted on their help page saying I couldn't get it to save my settings and thought maybe I was doing it wrong, and got this reply.
Hello,
you are not doing anything from. This is a well known problem on some Samsung devices, since the update of Android version 2.2.1. The settings of some apps are not saved permanently. Once this problem occured, this will happen again and again.
As the problem seems to be caused by a bug in Samsung's version of the Android OS I am afraid to say that we can't do anything against it. We hope that Samsung is about to fix the reason of this in the future. Maybe you can contact the Samsung support, that they hopefully
accelerate working on that issue.So unfortunately your device is affected by this problem. Some people told us that a factory reset helps them out of this really annoying problem, but I won't guarantee for anything. That's up to you.
Best regards - Anthea Neums from Business Calendar Support
Now I have been running the Galaxy S since launch day and my Galaxy SII since December. I frequent the forums here daily. Yet I have never seen or experienced anything like this happening before. Is their reply BS or have I missed something in my readings? And if they are correct, is it fixable with a hack? I really like the program.
Click to expand...
Click to collapse
Weird. I use business calendar, and haven't noticed any issues with it not saving settings. I honestly don't make too many changes to the defaults though, so maybe it's something you are doing that I am not? If you want to give me a specific case that you can reliably reproduce, I'll give it a shot to see if it loses that setting for me as well...
All I have to do is open it and it goes right to the 'Welcome to Business Calendar' page nearly every time. I change the week to start with Sunday and the day to start at 7:00am, then when i reopen it goes back to the welcome page and my settings are gone.
Oddly it did that for a while, then it seemed to not, then it started again.
It does it for sure right after a reboot. I stopped rebooting to see if it would fix it but it doesn't.
I was considering switching to CM7 to see if that fixes it, but I like ICScrewd.
have you tried reinstalling the app? Maybe something happened during install. I also have Business Calendar and never have any problems with it (and I've changed the settings in the app, just as you are trying to do)
FireRaider said:
All I have to do is open it and it goes right to the 'Welcome to Business Calendar' page nearly every time. I change the week to start with Sunday and the day to start at 7:00am, then when i reopen it goes back to the welcome page and my settings are gone.
Oddly it did that for a while, then it seemed to not, then it started again.
It does it for sure right after a reboot. I stopped rebooting to see if it would fix it but it doesn't.
I was considering switching to CM7 to see if that fixes it, but I like ICScrewd.
Click to expand...
Click to collapse
I'm also running ICScrewD (2.1, with Entropy DD 3/7/12 ATM but also with Siyah .13 for a while). Just tried changing week start day to Sunday (actually, shoulda done that a long time ago ) and could not duplicate your issue - closed out and re-opened, and it opened back up to the calendar.
As my friendly nemesis Mr. NYYDynasty said (yeah, I live in New England, I'm a BoSox fan ) it could be a bad install. You might also want to try clearing app data from
menu>settings>applications>business calendar>clear data
before remove/reinstall...
Good luck.
Thanks guys, I will give that a shot. I pretty much figured I would get better advice and help here on XDA than I would from the developers help page.
I will post back what happens after i give it a bit.
dandrumheller said:
As my friendly nemesis Mr. NYYDynasty said (yeah, I live in New England, I'm a BoSox fan )
Click to expand...
Click to collapse
my condolences
Well clearing data didn't help. As a matter of fact, there is nothing showing in the data indication before I clear it. 0.00B. Do you guys show some kind of volume on that data? I have nothing there or in the cache.
Its not saving anything in there I guess? It will work fine until I close it out. If I force stop it and then reopen its back to the welcome page.
I will try deleting and reinstalling.
edit: Nope, didn't fix it. I did have 16.00kb in the data section after a re-install and save so I was hopeful and it even showed that amount after a reboot but still went back to the welcome screen and lost my changes after the reboot.
FireRaider said:
Well clearing data didn't help. As a matter of fact, there is nothing showing in the data indication before I clear it. 0.00B. Do you guys show some kind of volume on that data? I have nothing there or in the cache.
Its not saving anything in there I guess? It will work fine until I close it out. If I force stop it and then reopen its back to the welcome page.
I will try deleting and reinstalling.
edit: Nope, didn't fix it. I did have 16.00kb in the data section after a re-install and save so I was hopeful and it even showed that amount after a reboot but still went back to the welcome screen and lost my changes after the reboot.
Click to expand...
Click to collapse
Fwiw, I show 160k for data, and zero for cache. Not too many calendar items at the moment.
I got no clue though why it isn't working...
Sent from my SGH-I777 using XDA
I run this app with no issues. Have not seen the behavior you describe. Do you by chance have both the free and paid versions installed at the same time? If so, delete both, reboot, and just reinstall the paid version. Just a wag....
Sent from my GT-I9100 using Tapatalk 2 Beta-2
I purchased the app straight off. Never tried the free version.
Deleting data and uninstalling has proven unsuccessful so I guess we are out of luck here.
I guess the developer was correct in saying some Samsung devices have an issue with it.
I am happy with the way my phone is set up right now but if I change the rom I will give Business Calendar a try then. Maybe a wipe and reinstall would change things. I am kinda holding out for CM9 before I do that though.
Seems to have been fixed when I switched to CM7 and then to RockRatts Cobra v2b. That leads me to beloved its not really a Samsung issue but rather a formatting issue.
Sent from my SGH-I777 using XDA

Weird issue with Settings / Applications Manager

I have tried most of the JB Roms for the Galaxy S3, trying to see what would bother me less in every rom as a missing or not working feature.
I am facing the same problem with almost all roms (but not with all).
As soon as I bring back my applications and data through Titanium backup (never restoring the system files of course) then when I go to Settings/Applications Manager and try to scroll through the installed applications it always freezes and I get the message "Unfortunately, Settings has Stopped" and I get back to home screen.
As I said I did not had the problem only with a couple of roms (not remembering which ones though) but having it most of those I flashed.
All the roms have always been flashed on totally blank mediums since I have always used full wipes (tried to reflash a couple of them on top just to see if this would fix the problem but it did not)
Note that all applications do scroll normally and very fast in other programs also listing the installed applications, either through Titanium Backup or even in the drawer where all apps literally fly when scrolling.
Any help or advice would be greatly.
Does it work ok before you restore apps from Titanium Backup? If it does, try just restoring the apps one at a time and testing after each one. I suspect there's a duff application in there that's been restored, and that's causing the problem
Alternatively just reinstall the apps from the Play Store rather than using TB.
Thank you anthropolyte, man you are fast.
Thought of many things related to JB (because up until v4.0.4 I did not have this issue with - almost - the same applications installed) but I did not think for a moment that a specific application could be the issue. I will re-flash the rom later today and try it your way.
I will report back in case someone faces the same issue.
You're welcome - good luck!
Dear jsfero, did you manage to solve that problem? I'm just facing the same. Firstly I thought it was due to blackm* app but after uninstall it nothing changed. Then I thought it may have to do with apps in drawer showing the same name. Then I kept one and uninstalled the other. Nothing changed. I'm just a bit bored with this situation. My only difference is that I occurred to me also with ICS, not only with JB or CM10.
Could you provide me with some light about this issue?
Many thanks in advance.
Zentenario said:
Dear jsfero, did you manage to solve that problem? I'm just facing the same. Firstly I thought it was due to blackm* app but after uninstall it nothing changed. Then I thought it may have to do with apps in drawer showing the same name. Then I kept one and uninstalled the other. Nothing changed. I'm just a bit bored with this situation. My only difference is that I occurred to me also with ICS, not only with JB or CM10.
Could you provide me with some light about this issue?
Many thanks in advance.
Click to expand...
Click to collapse
Unfortunately, after having tried almost everything from re-flashing to re-downloading all my apps, I could not manage to find out the source of this problem.
It is only just by accident that I found out that a couple of ROMs are not causing any problem and the phone works perfectly well. The one I do remember and I do use now as my main daily usage ROM is the one from Sotmax.
Now, I don't know if this problem is the outcome of a 'bad' combination or bad coexistence of certain programs from kernel or Rom, all I know is that my exact same Titanium back with over 300 apps is the same one I tried on all the Roms so I doubt that the problem is coming the applications side. It was always as if the amount of applications / data was too high for the Roms to handle and crashed the application. And all the sudden one day, I simply realized that with Sotmax's Rom and same applications installed via Titanium did not cause any problem or malfunction.
I even changed kernels, from stock to Siyah and now Perseus, the problem seems to be gone for good with this Rom. I am sure that I must have found a one or two other Roms which did not cause the problem either, unfortunately I did not like them that much to keep them and remember which one they were.
HTH
I had the same problem as well unfortunately, also couldn't access App info/app size
Had to uninstall some apps, then reinstalled them again
But I can't install broken Sword without getting the problem again
Sent from my GT-I9300 using xda premium
Yes, I can confirm that Broken Sword game causes App Info to crash. Another one that I found is from Samsung Apps called "Catch The Monkey". Troubleshooting this was time consuming as I had to uninstall each app in the sequence (refering to appbrain.com which has the sequence of apps I installed from Google Play) and keep testing whether App Info crashes or not.

Phone freezing and randomly rebooting

I know there has been a few threads about this but I kind of know the reason to my problem but I'd like it resolved.
It's caused by an application from the GO Launcher EX people, Go Battery & Power Widget.
So, I know this is APP specific but I'm figuring that it's also phone specific as I don't see anyone else having this problem in specific with it in the past few months or updates. Last was march.
It worked just fine up until yesterday when it started freezing the phone with the screen on and the plastic LED thing underneath the menu buttons on my Xperia U, if it doesn't freeze it randomly reboots whenever it feels like it and I'm quite positive this will in the long run harm my battery, I might just be paranoid but I think that it has affected or overloaded a few of the LEDs inside of the screen I can now find 3 dead pixels, I know that ain't much but it's kind of annoying as you may guess.
So, anyone know what I could do to solve this issue without removing the program or if it's a compatibility issue with something else, any help at all would be swell - I would remove it if it were not for the fact that when it did work that it saved my battery quite dramatically.
Thanks in advance and thanks for reading my wall of text.
-
I just recently re-flashed my phone due to an annoying "update available" issue that wasn't removable, forcing me to create a backup, which I just now restored into the phone (It doesn't appear to be there now but the issue persist so now I'm confused as to what might be causing it)
Once again, I'd really like this resolved rather than factory reseting the phone and then start to re-fill it again.
Not quite counting the freezes and reboots, but it's well over 50 just today.
Hmm as u said that the problem existed even without go launcher so try logging when the screen freezes... We might see the problem there... Anyways I know you said you don't want to factory reset and stuff... But 50 above is harmful so I think flashing stock is a good idea
Cheers,
AJ
Have you tried removing the app itself to see that it stops freezes?
If so, then it is clear the app causes the problems. Then you should contact the developers of it, they shall have an email on google play.
If not, then I suggest you to go for a logcat and try to figure out what is the cause Sounds really weird and a stock reflash (without restore) seems to be the solution for me
Abhinav2 said:
Hmm as u said that the problem existed even without go launcher so try logging when the screen freezes... We might see the problem there... Anyways I know you said you don't want to factory reset and stuff... But 50 above is harmful so I think flashing stock is a good idea
Cheers,
AJ
Click to expand...
Click to collapse
I decided to re-flash it, went well and it's feeling healthier.
The problem was Xprivacy.
nintendojet said:
Have you tried removing the app itself to see that it stops freezes?
If so, then it is clear the app causes the problems. Then you should contact the developers of it, they shall have an email on google play.
If not, then I suggest you to go for a logcat and try to figure out what is the cause Sounds really weird and a stock reflash (without restore) seems to be the solution for me
Click to expand...
Click to collapse
I had some freezing issues even without it, but I mucked about and re-flashed and now it feels better, but I'm still sure it was Xprivacy. Don't know why though.

freezing frequently

I got a new LG G5 (international variant) and I have been experiencing freezing for 2 seconds on any screen and in any app. Any suggestions?
Maybe do a reset ?
drmilosh said:
Maybe do a reset ?
Click to expand...
Click to collapse
I did a factory reset and still problem persists, it is software related I guess
Check for an update, clean cache, if doesn't work then replace it My G5 is Simply BLAZING FAST 3 months without one single hiccup,lag or freezing
I am also experiencing this. Don't know what caused it but I also believe it's software related. Do you have greenify installed?
caesium2 said:
I am also experiencing this. Don't know what caused it but I also believe it's software related. Do you have greenify installed?
Click to expand...
Click to collapse
It is like a hiccup in the software, otherwise the phone is fast. Should I install greenify? I have done a factory reset and also cleared the cache. It is very annoying actually
Is anyone else experiencing this?
What variant?(H860N , H850)
drmilosh said:
Is anyone else experiencing this?
What variant?(H860N , H850)
Click to expand...
Click to collapse
I am using the H860. It seems to be fixed as I downloaded the LG bridge and it detected that there is a new software update of 2.25 GB which wasn't detected by OTA. So far the phone is super smooth without any lags or hiccups. Will continue trying and update the thread if anything occurs
amagdy81 said:
It is like a hiccup in the software, otherwise the phone is fast. Should I install greenify? I have done a factory reset and also cleared the cache. It is very annoying actually
Click to expand...
Click to collapse
No, I thought it maybe had something to do with greenify. But if you experience the same and you don't have greenify installed... My model is h850 with the latest software V10e. Not unlocked, just disabled some LG apps. For me, the system gets unresponsive for some seconds and then everything is back to normal. I think it also does the action what you do on the screen while being unresponsive. As you said, it is like a hiccup.
caesium2 said:
No, I thought it maybe had something to do with greenify. But if you experience the same and you don't have greenify installed... My model is h850 with the latest software V10e. Not unlocked, just disabled some LG apps. For me, the system gets unresponsive for some seconds and then everything is back to normal. I think it also does the action what you do on the screen while being unresponsive. As you said, it is like a hiccup.
Click to expand...
Click to collapse
Sounds like a memory addressing issue, whether caused by the software or perhaps defective RAM modules.. I used to get problems like that in Windows operating systems when I'd overclock memory to unstable levels, similarly the same was possible from some IRQ conflicts (software). I know that is different from Android but I would assume there are similar forces at play.
PHYCLOPSH said:
Sounds like a memory addressing issue, whether caused by the software or perhaps defective RAM modules.. I used to get problems like that in Windows operating systems when I'd overclock memory to unstable levels, similarly the same was possible from some IRQ conflicts (software). I know that is different from Android but I would assume there are similar forces at play.
Click to expand...
Click to collapse
What would you do? Reset? Or is there any app that can check ram failures?
caesium2 said:
What would you do? Reset? Or is there any app that can check ram failures?
Click to expand...
Click to collapse
I'm not aware of an app for Android that can do a real memory stress test (like Prime95 does for x86/ Windows OS). There's Kernel Auditor which could give you an idea of the governor settings and I/O schedulers that your kernel is using (a possible software culprit) and let you make some adjusts to see if it resolves the hiccups, but I'm afraid that will do you no good if you don't have root.
At op. Did you by any chance activate the force GPU rendering? I turned mine of yesterday and so far, no hiccups. But we'll see, I did not test it that long.
So far after the update no hiccups or lags and the phone is working perfectly. I have attached the version of the software
For me it was the Force GPU Rendering option in Developer settings.

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