Install and uninstall apps will cause residue files in system memory? - Galaxy Note GT-N7000 Q&A, Help & Troubleshooting

If we install/uninstall any apps, will the uninstall really clean/delete all the files from the system memory? For PC software sometimes it leaves something in the registry key or system directory.
Will Android has the same issue?
Sent from my GT-N7000 using Tapatalk 2

ahkow said:
If we install/uninstall any apps, will the uninstall really clean/delete all the files from the system memory? For PC software sometimes it leaves something in the registry key or system directory.
Will Android has the same issue?
Sent from my GT-N7000 using Tapatalk 2
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Click to collapse
althou android doesnt have a registry.. i have seen that some apps leave their custom folders and files in the usb storage... which i have to find and delete manually.. mainly games and other apps that download data after installation

I'm also interested to know about this too...with Windows I'm pretty careful with what to install as I don't like too many un/installs...curious to know how Android handles many un/installs...

ahkow said:
If we install/uninstall any apps, will the uninstall really clean/delete all the files from the system memory? For PC software sometimes it leaves something in the registry key or system directory.
Will Android has the same issue?
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
Based on my experience there are many leftovers even after un-install. One suggestion is to use the 'Clear Data' button before uninstalling an app. However, even after this there will be leftovers esp in the sdcard\Android folder.

Left over under Android folder still manageable, my worry is it left something in the restricted folder where we have no access unless we root. Is matter of time run out of internal memory until factory rest.
Sent from my GT-N7000 using Tapatalk 2

it depend on what kinda that you use. some apps will left empty folders when you uninstall it.

same here
I actually have the same worry with my phone since I keep on trying different apps.. I just "clean data" and "clean cache" for the app before I uninstall it and I dont have problems with that..

The tool that I use is SDmaid. It helps me in identifying leftover folders and app debries. You can automatically delete them using the app.
Worked fine for me.
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I tried SD Maid, it did help to free out at least 200+Mb of internal memory. Cool..
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ahkow said:
I tried SD Maid, it did help to free out at least 200+Mb of internal memory. Cool..
Sent from my GT-N7000 using Tapatalk 2
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Click to collapse
Most of the time, the biggest "trash" SD maid cleans up is the Gallery thumbnails..
Soooo when you startup your gallery app again, it regenerates the thumbnails so youre back to square one.. LOL

I am referring to internal memory, it freed up about 200+MB from program cache. Correct, the thumb view file (another 200+MB) from gallery reside at sd card will rebuild after delete.
Funny thing is wipe cache at CWM won't free up the internal memory.
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I've noticed on ics that games and some apps leave folders on the usb storage. Gb used to remove them..
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For a specific case...
phone had installed the free version of AutomateIt.
Uninstalled it by: "clear cache", "clear data", force stop", and then "uninstall". Then rebooted phone.
A bit later searching the storage noticed a "AutomateIt" folder in Device Storage.
The AutomateIt folder contains a subfolder "Backups", which contains 3 files (all .AiR files). (two are 1kb, one is 0kb) .
Is it safe to manually delete these files and folders?
Are there any apps similar to SDmaid but for unrooted phones? (no root yet for Atrix HD, so not even an option)

Some apps leave behind files or folders no matter what you do. I just manually remove them using a file explorer.
This is my observation. Hope this helps.
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research paper
In case you are still interested in this topic, here is a research paper talking about the data residue vulnerability in Android system services:
life-after-app-installation-data-still-alive-data-residue-attacks-android
I could not post URL in the reply, but you can search the paper name and find it.

@nevermorexiao
research paper
In case you are still interested in this topic, here is a research paper talking about the data residue vulnerability in Android system services:
life-after-app-installation-data-still-alive-data-residue-attacks-android
I could not post URL in the reply, but you can search the paper name and find it.
Click to expand...
Click to collapse
Mmmm ........ interesting, will read it in detail later
Link is
http://www.cis.syr.edu/~wedu/Research/paper/data_residue_ndss2016.pdf
Another good reason to do a full wipe prior to installing a new ROM!

Related

Deleting system files

Is it possible to delete any files in the system directory? I can save close to 16 megs if delete the ring tones/notification tones/alarms that I'll never use. any advice?
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Yes it's possible, but I don't think it will do you any good. As I understand, internal memory is in the data partition, and deleting files in the system partition doesn't give you any more space in data...
Sent from my Nexus One using XDA App
So what can we delete to free up space for apps?
Download and use a script to move apps and cache to your SD
Sent from my Nexus One using XDA App
As mentioned, your best bet is to move stuff to the SD card.
meh... i guess that's our best option. thanks for your help.
just saw this post#11 which has some possibilities:
http://forum.xda-developers.com/showthread.php?p=9706945#post9706945

unwanted cashe/downloaded data deletion

Hello,
How to remove those files which are not really necessary required after uninstalling apps.
Is there any special application for this ?
By the way using Galaxy S gingerbread XXJVT
Thanks!1
Get nitrality from market. It will remove most system apps and associated lib files.
Sent from my GT-I9000 using xda premium
Thanks alot, But i dont want to remove system apps, those one which i'v installed and later uninstall. they left behind deta on internal sd i guess.
Sd maid from market - then clear tombstones.
woolf clubs said:
Sd maid from market - then clear tombstones.
Click to expand...
Click to collapse
I can recommend this one, too.
This will fullfil your needs.
Great App...
Nimra Khan said:
Thanks alot, But i dont want to remove system apps, those one which i'v installed and later uninstall. they left behind deta on internal sd i guess.
Click to expand...
Click to collapse
SD Maid -> Corpse Finder will remove old setting files and databases left over by uninstalled apps
This was pretty bad on froyo, it got alot better on gingerbread but still is not perfect.
If you mean folders on /sdcard/, as e.g. /sdcard/opera there is currently no way to automaticly remove those.
I have some ideas, but nothing reliable enough .
woolf clubs said:
Sd maid from market - then clear tombstones.
Click to expand...
Click to collapse
SD Maid -> System Cleaner, will remove known unnecessary files.
Tombstones are debug files / reports of crashed apps.
It will remove left over caches from market downloads too.
SD Maid has an official thread on XDA btw:
http://forum.xda-developers.com/showthread.php?t=1013063
thanks alot.
i think this will do

[Q] how can I make more free space in /system

Hi,
I'm with AOKP rom M6, my /system folder is full (I have only 12kb free).
Is there any way to make it bigger?
Thanks.
Anyone?
all you can do is to uninstall some apps that u dont use, like life wallpapers, and any other apps that u dont use, u can use titanium backup for this.
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Thanks!
evaworld said:
all you can do is to uninstall some apps that u dont use, like life wallpapers, and any other apps that u dont use, u can use titanium backup for this.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
This is certainly the safest way to do it. You can also use any root explorer (like, for example, rootexplorer) and start deleting things. Not any thing, mind you. Just apps, fonts or media files in their respective folders. And it's very risky if you don't know what you're deleting.
Also, you can move system apps to the sdcard by making them user apps (with Titanium or a similar tool). However, most system apps don't work correctly if you convert them to user apps, so be careful with this too.
What the people above me are saying: you can't just increase the space that will be available in /system from, let's say 250mb to 500mb. You will have to mess with your phone's partitioning, which can be done, but is fairly risky business. This goes for any repartitioning, not just on android, but also on Windows, Mac. An easier way would be to free up space by deleting anything neccesary in /system.
For instance, delete the .apk files from apps you don't ever use (and know what they're for! Don't ever delete anything of which you don't know what it is!) in /system/app.
And see what's in /system/media - that could save some space as well. Just don't touch /system/lib!
And finally, you could also get Titanium Backup Pro to convert system apps to user apps, this will free up some space as well. By doing all this, I recently managed to free up about 30mb on my /system.
You can move some apps to SD card. Go to system -> applications -> choose application -> move to SD card
a
xuleca said:
You can move some apps to SD card. Go to system -> applications -> choose application -> move to SD card
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Click to collapse
Dont think you can move system apps to sd card. he's talking about /system not /data

[Q]Software to view all deleted items during history of your phone?

Hello,
I have already rooted my phone, and installed Titanium Backup from the Android Market, and removed all the apps that I don't use, such as
TImescape, Email, Geotags, etc... and managed to free a lot of memory from both the system ROM and internal memory.
There's many software apps out there like Root Explorer, Rom Toolbox, etc.. that allow you to view all the items in
the internal system, but is there software anywhere where you can install on one's rooted phone, and view all deleted items (photos,
music files, video clips, etc.) during the entire history of the phone since you started using it?
I know when you delete items on your computer, they are sent to a part of the system where it can be recovered with the
right tools.
Thanks all,
and Happy Halloween :fingers-crossed:
Ken
I don't know about such an application.
Click to expand...
Click to collapse
he means app such recuva for windows.
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If I am not wrong, the files on the sdcard that you delete are deleted forever. Like Shift+Del in Windows; you can't see them again. The files in the other directories, AFAIK, are deleted in a similar way (where data is not stored). In conclusion, no, you cannot view deleted files.
sgt. meow said:
If I am not wrong, the files on the sdcard that you delete are deleted forever. Like Shift+Del in Windows; you can't see them again. The files in the other directories, AFAIK, are deleted in a similar way (where data is not stored). In conclusion, no, you cannot view deleted files.
Click to expand...
Click to collapse
is it true? but how if we accidentally reformat sd in quick format mode? is data still recoverable?
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Its recoverable..
I too formatted my sd by mistake.
But then i recovered the lost data using stellar pheonix data recovery using my PC
Its recoverable as long as the deleted files haven't been overwritten. When you delete a file it doesn't actually get deleted, the memory block just switches from 1 (in use) to 0 (not in use). When you save a file, the system looks for memory blocks that are not in use and overwrites them. Thus as long as you haven't saved anything or used the memory it should be recoverable.
There's an app called 'undelete' or something like that on the Market that will recover deleted files.
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Issue - Storage

I seem to be unable to open Gallery and an error message appears stating:
"Not enough space. Delete unnecessary items such as ......"
I've checked internal, external, system, data etc and still have some remaining space on each one.
Could the issue be with the location of the storage being corrupted? If so how can I fix it
(I've tried wiping everything through CWM, but that hasn't helped)
Gallery cache?
Is there enough space for it?
Sent from my GT-N7000 using Xparent ICS Tapatalk 2
try to unmount the external sd card and the open gallery
Thanks for your response
I've backed up both internal and external storage to my pc and then formatted the phone completely, reinstalled the ROM and the gallery is now working.
It seems therefore, that there was a corrupt file/s somewhere.
Any ideas how I go about locating this file, as I would like to get transfer my files back onto my phone.
Thanks
Sent from my GT-N7000 using xda app-developers app
may be it was not a corrupted file issue. The flashing of rom again might have solved it. put the files back and it should work
I have exactly the same problem.
I get this every time I try to open the gallery, changing the wallpaper or anything else that's using the gallery. Non of those things work.
I am running RocketRom JB, flashed it according to the installation info (including the real format system, wipe dalvik/cache and all the other things)
To troubleshoot the problem I did:
Another flash of rocketrom without wipe
Backup and format the sd-card
Cleaned the Gallery cache
Rescanned the media storage
Remove the sd-card and start the gallery
Any ideas what else could help?
Of course I have plenty of space left (first thing I checked) it's > 1 GB on the system, > 9 GB internal Storage and 20 GB on the external.
Any help would be highly appreciated.
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I think your picture files is too many. If you would like to store pics in your SD card, make sure its not like above 3k picture files. I have experinced this before..
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Some people tend to use their phone as their life depends on it.. Carrying loads of important stuff there..
A phone its a device that's very exposed to damage and robbery etc.. It's not meant to be your life backup... Really I don't understand the behavior of some people... Just put some music... Some meaningful pictures.. Some movie, a couple of games... Configure your email account set the security in the lock screen and you are good to go..
Tapatalking on my n7000
Thanks for the hint, but size is not the problem, not even a single photo on an empty card works.
@msdek maybe you didn't understand the problem. What gave you the hint that I would like to "carry my life around with me"?
I have appr. 80 photos that I would like to view in the gallery plus the ones I take on the go. Which should be no problem. Which was no problem until I flashed Rocketrom. But the Gallery doesn't open, not even for one pic.
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Podcasterin said:
Thanks for the hint, but size is not the problem, not even a single photo on an empty card works.
@msdek maybe you didn't understand the problem. What gave you the hint that I would like to "carry my life around with me"?
I have appr. 80 photos that I would like to view in the gallery plus the ones I take on the go. Which should be no problem. Which was no problem until I flashed Rocketrom. But the Gallery doesn't open, not even for one pic.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Oh I was not talking about you specifically.. Just talking in general to those like the guy with 3K pictures wtf? It's that necessary?.. Unless you do the same you shouldn't feel alluded..
Tapatalking on my n7000
Ok, sorry I misunderstood you then. I thought it was a reply to me.
Sent from my GT-N7000 using xda premium
I have the exact issue, either on RRv1 or v2. If I got this problem, I need to wipe the Dalvik cache in order to recover the problem. However, sometime later, the problem will be happened again. Any clue to prevent it?
me too....any solution ? i think is the internal sd permission issue.....help help.....
robot1000 said:
I seem to be unable to open Gallery and an error message appears stating:
"Not enough space. Delete unnecessary items such as ......"
I've checked internal, external, system, data etc and still have some remaining space on each one.
Could the issue be with the location of the storage being corrupted? If so how can I fix it
(I've tried wiping everything through CWM, but that hasn't helped)
Click to expand...
Click to collapse
Wipe the odex file of the gallery app. I had it
Sent from the man hiding in your attic......
howard bamber said:
Wipe the odex file of the gallery app. I had it
Sent from the man hiding in your attic......
Click to expand...
Click to collapse
Are you referring to the filein /system/app/secgallery2.odex?
With wipe you mean delete or rename ?
i have heard previously, deleting odex might make your gallery app FC. pl confirm.
Thanks upfront.

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