Random app crashes and problems

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totopesce

Member
Mar 21, 2013
39
4
Hi, I have a samsung galaxy tab s2 the 9.7 inches one, but lately some apps have been crashing or having errors, chrome for example throws that snap somethjng wrong, perfect viewer sometimes gets stuck on an image and I cant chnge it, but all menus work, several apps keep crashing as well.
I have it with official firmware, never touched it, its rooted with magisk since before the problems started, apps that use root are file explorer, vanced manger and an app to disable some samsung bloatware.
I dont know how to troubleshoot android, on pc I would check memory and hdds, but theres nothing lkke that kn android that I could find.
I think it could be memory or storage, but everything Ive downloaded or copied/moved hasnt have any problems or errors. Or something is corrupted in the system, or I dont know what else or how to check.

What would you recommend to fix it? Hopefully starting with less drastic, as in less data loss, factory reset, flashing an original rom or somethjng.

The device is aSamsung galaxy tab s2 9.7 with android 7 with lean launcher.

All help is appreciated.
 

totopesce

Member
Mar 21, 2013
39
4
I believe this were an common issue for Android 7 and below !

and you have an old device and android which I believe it's no longer supported by the most of developers.

try to flash any custome roms & kernels if available.
But it hasnt happened before until now, what would it fix using a custom rom instead of the original?

If apps are randomly crashing then the reason might be it's caused by an update of Google's tool called Android System WebView.
I had that problem with my phone, my tablet never got that update.

Thanks
 

blackhawk

Senior Member
  • Jun 23, 2020
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    Wiped dalvik and system cache, but still having the same problems.
    Thanks
    Try using the stock launcher.
    See what apks are running and cached right when this happens is it may give you a clue.
    I would completely backup all critical data now.

    Android is normally very stable.
    Scan with Malwarebytes. If you can't find the root cause, suspect a virus, rootkit etc.
    This is rare but can happen.
    Karma Firewall can help you to see what's accessing what and how often. It uses almost no battery or resources, freeware, adfree, a near perfect little app.
     

    totopesce

    Member
    Mar 21, 2013
    39
    4
    Cant remove lean launcher it gets stuck in android is starting and it doesnt let me change to stock, installed nova just to check if it was lean and still the same problems.
    Installed malwarebytes, had to run the scan several times cause it kept crashing, it completed and it didnt find anything.
    Installed karma firewall and will see if I find anything.

    Thanks
     

    blackhawk

    Senior Member
  • Jun 23, 2020
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    Cant remove lean launcher it gets stuck in android is starting and it doesnt let me change to stock, installed nova just to check if it was lean and still the same problems.
    Installed malwarebytes, had to run the scan several times cause it kept crashing, it completed and it didnt find anything.
    Installed karma firewall and will see if I find anything.

    Thanks
    Figure out how to get the stock launcher back.
    Any 3rd party app you can't uninstall is already malware. Check Device Administrators to see if it's registered there. Nova is no saint either.

    If you can't resolve it error on the side of caution that it is malware and nuke it. Sometimes you never find out which one it was... getting rid of it is all that matters.
     

    totopesce

    Member
    Mar 21, 2013
    39
    4
    Sorry, what I meant was that after uninstalling it it got stuck in androiid is starting, somehow I lost the stock launcher, so it got stuck with no launcher. Found the launcher that came stock, installed it and uninstalled the other 2.
    Apps are still crashing, I deleted all apps that I dont really use.
     
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    blackhawk

    Senior Member
  • Jun 23, 2020
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    Sorry, what I meant was that after uninstalling it it got stuck in androiid is starting, somehow I lost the stock launcher, so it got stuck with no launcher. Found the launcher that came stock, installed it and uninstalled the other 2.
    Apps are still crashing, I deleted all apps that I dont really use.
    Lol, that can crash it for sure.
    See if you can find a common apk between the effected apps. Any recent system app updates?
    New or uninstalled apps?
    A system apk may have gotten corrupted.
    Android is pretty good compared to Windows when uninstalling apps but occasionally a poorly designed app will screw it up.

    It's just about factory reset time or your equivalent.
    If it an old load that's probably best anyway.
    I haven't reloaded in almost a year but I'm ready to go at any time.
    Takes me about 2 hours to get it back within 99%. All the data I need for a full restore is on my SD card otherwise it would an additional 6-8 hours to restore the SD card data as well.
    If you don't have a complete reload plan that saves all your critical data no matter what, implement one now before you get burnt.
    Those stories are too common here😖
     

    totopesce

    Member
    Mar 21, 2013
    39
    4
    Dont remember when it started, cause at first it was one app from a github that was having problems, then yesterday magisk started and when I got that working it all when to hell.
    The app that I use most has a backup/restore file that I saved on my sd, what do you use to backup/restore?
    I would think that some backup solution could bring the problem back or am I mistaken, like if you fully restore something corrupted it should still be corrupted?
    A factory reset could be corrupted as well? I mean after a factory reset, assuming its software, could it still have the same problems?

    Though I dont really have any critical data on the tablet its mostly for browsing, youtube and reading comics. Still its a bother to re configure everything xD. IIRC I think its only been factory reset once.

    Thanks.
     

    blackhawk

    Senior Member
  • Jun 23, 2020
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    It's unlikely the factory reload image is corrupted.
    The current one your using likely is.
    Other than apps that allow you to back them up like Poweramp or perhaps bookmarks, most app data I would write off just in case that was connected to the current issues.

    None of my database is on internal memory except DCIM and downloads (both I back it up at least monthly). Critical apps like Poweramp are backed up on the SD card as export backup files.
    The Poweramp setup would literally take a week to recreate. Most apps you can throw together rather easily.
    All the SD card data is then again backed up at least twice to other separate drives.

    I will try Samsung Smart Switch to restore home settings and see how it does on the next reset.
    If you issues are of unknown origins being conservative about what you allow on the new load could save you more time in the long run.
    If you unintentionally import corrupted data you'll end up doing it over again.
    Or do so if the reload time isn't that great and is an easy write off for you.
    Fun times... especially if the reload doesn't fix it🤣
     

    blackhawk

    Senior Member
  • Jun 23, 2020
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    Did a factory reset and problem solved, took me less time than I thought to get my most used apps ready to go.
    Thanks for the help.
    Yay! Success!
    And a minty fresh OS load.
    Load apps and especially updates over time to see if one these were the cause.

    Forced reloads are rare but they happen usually caused by a rogue app screwing up boot or a malware infection. Otherwise you can usually track down the root cause which is preferable to avoid it from happening again.
    Lazy techs misuse factory reset a lot🤣
     

    totopesce

    Member
    Mar 21, 2013
    39
    4
    Will do that, install apps just as I need them and try not to instal a bunch at once.
    I had a problem with an sd card and sent it to samsung, they did just that factory reset it and gave it back with the same problem, and they dont even let you know so you can back your stuff up, just lucky it was fairly new at the time and I had the sd card with me.
     
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    blackhawk

    Senior Member
  • Jun 23, 2020
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    Will do that, install apps just as I need them and try not to instal a bunch at once.
    I had a problem with an sd card and sent it to samsung, they did just that factory reset it and gave it back with the same problem, and they dont even let you know so you can back your stuff up, just lucky it was fairly new at the time and I had the sd card with me.
    Sammy tech support sucks.
    I'm using the Lexar .5 tb V30 card, just format in phone and it's good to go. Zero issues for $64.
    Been using it for over a year now. Play movies and music from it all the time from it flawlessly.

    Been using Lexar flash cards for over 15 years and all cards are still functional. No failures or card related issues at all. I like that brand a lot.
     

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      Sorry, what I meant was that after uninstalling it it got stuck in androiid is starting, somehow I lost the stock launcher, so it got stuck with no launcher. Found the launcher that came stock, installed it and uninstalled the other 2.
      Apps are still crashing, I deleted all apps that I dont really use.
      1
      Did a factory reset and problem solved, took me less time than I thought to get my most used apps ready to go.
      Thanks for the help.
      1
      Will do that, install apps just as I need them and try not to instal a bunch at once.
      I had a problem with an sd card and sent it to samsung, they did just that factory reset it and gave it back with the same problem, and they dont even let you know so you can back your stuff up, just lucky it was fairly new at the time and I had the sd card with me.