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Groups > comp.mobile.android > #145180 > unrolled thread

Where are MMS-messages stored in Android 15 ?

Started byJesper <Vitsky.kasperski@gmail.com>
First post2024-12-13 15:13 +0100
Last post2024-12-18 19:15 +0000
Articles 6 on this page of 46 — 13 participants

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  Where are MMS-messages stored in Android 15 ? Jesper <Vitsky.kasperski@gmail.com> - 2024-12-13 15:13 +0100
    Re: Where are MMS-messages stored in Android 15 ? Andrew <andys@nospam.com> - 2024-12-13 14:31 +0000
    Re: Where are MMS-messages stored in Android 15 ? Andy Burns <usenet@andyburns.uk> - 2024-12-13 14:45 +0000
      Re: Where are MMS-messages stored in Android 15 ? Jesper Kaas <jesperk@neitakk.online.no> - 2024-12-13 16:00 +0100
    Re: Where are MMS-messages stored in Android 15 ? VanguardLH <V@nguard.LH> - 2024-12-13 13:55 -0600
      Re: Where are MMS-messages stored in Android 15 ? Jesper <Vitsky.kasperski@gmail.com> - 2024-12-13 21:20 +0100
        Re: Where are MMS-messages stored in Android 15 ? VanguardLH <V@nguard.LH> - 2024-12-13 16:05 -0600
        Re: Where are MMS-messages stored in Android 15 ? Andrew <andys@nospam.com> - 2024-12-17 03:26 +0000
    Re: Where are MMS-messages stored in Android 15 ? micky <NONONOmisc07@fmguy.com> - 2024-12-14 03:00 -0500
    Re: Where are MMS-messages stored in Android 15 ? Arno Welzel <usenet@arnowelzel.de> - 2024-12-14 12:11 +0100
      Re: Where are MMS-messages stored in Android 15 ? Chris Green <cl@isbd.net> - 2024-12-14 12:08 +0000
        Re: Where are MMS-messages stored in Android 15 ? Jörg Lorenz <hugybear@gmx.net> - 2024-12-14 13:43 +0100
          Re: Where are MMS-messages stored in Android 15 ? Chris Green <cl@isbd.net> - 2024-12-14 14:57 +0000
            Re: Where are MMS-messages stored in Android 15 ? Jörg Lorenz <hugybear@gmx.net> - 2024-12-14 18:00 +0100
              Re: Where are MMS-messages stored in Android 15 ? Chris Green <cl@isbd.net> - 2024-12-14 19:50 +0000
                Re: Where are MMS-messages stored in Android 15 ? Jörg Lorenz <hugybear@gmx.net> - 2024-12-14 22:49 +0100
                  Re: Where are MMS-messages stored in Android 15 ? Chris Green <cl@isbd.net> - 2024-12-14 22:10 +0000
      Re: Where are MMS-messages stored in Android 15 ? "Carlos E.R." <robin_listas@es.invalid> - 2024-12-14 15:59 +0100
        Re: Where are MMS-messages stored in Android 15 ? Frank Slootweg <this@ddress.is.invalid> - 2024-12-14 15:50 +0000
          Re: Where are MMS-messages stored in Android 15 ? Arno Welzel <usenet@arnowelzel.de> - 2024-12-15 23:33 +0100
            Re: Where are MMS-messages stored in Android 15 ? Frank Slootweg <this@ddress.is.invalid> - 2024-12-16 14:33 +0000
              Re: Where are MMS-messages stored in Android 15 ? Andrew <andys@nospam.com> - 2024-12-17 03:25 +0000
                Re: Where are MMS-messages stored in Android 15 ? "Carlos E.R." <robin_listas@es.invalid> - 2024-12-17 15:11 +0100
        Re: Where are MMS-messages stored in Android 15 ? Arno Welzel <usenet@arnowelzel.de> - 2024-12-15 23:32 +0100
          Re: Where are MMS-messages stored in Android 15 ? "Carlos E.R." <robin_listas@es.invalid> - 2024-12-16 00:47 +0100
            Re: Where are MMS-messages stored in Android 15 ? Arno Welzel <usenet@arnowelzel.de> - 2024-12-17 11:36 +0100
          Re: Where are MMS-messages stored in Android 15 ? "R.Wieser" <address@is.invalid> - 2024-12-16 10:08 +0100
            Re: Where are MMS-messages stored in Android 15 ? Jesper <Vitsky.kasperski@gmail.com> - 2024-12-16 15:21 +0100
              Re: Where are MMS-messages stored in Android 15 ? "R.Wieser" <address@is.invalid> - 2024-12-16 16:08 +0100
              Re: Where are MMS-messages stored in Android 15 ? Frank Slootweg <this@ddress.is.invalid> - 2024-12-16 15:15 +0000
                Re: Where are MMS-messages stored in Android 15 ? "Carlos E.R." <robin_listas@es.invalid> - 2024-12-17 00:04 +0100
                  Re: Where are MMS-messages stored in Android 15 ? Frank Slootweg <this@ddress.is.invalid> - 2024-12-17 16:27 +0000
                    Re: Where are MMS-messages stored in Android 15 ? Andrew <andys@nospam.com> - 2024-12-18 02:18 +0000
              Re: Where are MMS-messages stored in Android 15 ? croy <croy@spam.invalid.net> - 2024-12-16 08:40 -0800
                Re: Where are MMS-messages stored in Android 15 ? Frank Slootweg <this@ddress.is.invalid> - 2024-12-16 18:50 +0000
          Re: Where are MMS-messages stored in Android 15 ? Frank Slootweg <this@ddress.is.invalid> - 2024-12-16 14:49 +0000
            Re: Where are MMS-messages stored in Android 15 ? VanguardLH <V@nguard.LH> - 2024-12-16 11:51 -0600
              Re: Where are MMS-messages stored in Android 15 ? Frank Slootweg <this@ddress.is.invalid> - 2024-12-16 18:38 +0000
                Re: Where are MMS-messages stored in Android 15 ? Jesper Kaas <jesperk@neitakk.online.no> - 2024-12-16 21:08 +0100
                  Re: Where are MMS-messages stored in Android 15 ? Andrew <andys@nospam.com> - 2024-12-17 03:37 +0000
                Re: Where are MMS-messages stored in Android 15 ? Arno Welzel <usenet@arnowelzel.de> - 2024-12-17 11:41 +0100
            Re: Where are MMS-messages stored in Android 15 ? Arno Welzel <usenet@arnowelzel.de> - 2024-12-17 11:38 +0100
              Re: Where are MMS-messages stored in Android 15 ? Frank Slootweg <this@ddress.is.invalid> - 2024-12-17 18:16 +0000
                Re: Where are MMS-messages stored in Android 15 ? Arno Welzel <usenet@arnowelzel.de> - 2024-12-18 00:30 +0100
                  Re: Where are MMS-messages stored in Android 15 ? Frank Slootweg <this@ddress.is.invalid> - 2024-12-18 10:27 +0000
                    Re: Where are MMS-messages stored in Android 15 ? Andrew <andys@nospam.com> - 2024-12-18 19:15 +0000

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#145312

FromArno Welzel <usenet@arnowelzel.de>
Date2024-12-17 11:41 +0100
Message-ID<lsd2ptF56kU3@mid.individual.net>
In reply to#145247
Frank Slootweg, 2024-12-16 19:38:

[...]
>   As I mentioned elsewhere [1] in the (sub-)thread, both backing up and
> exporting SMS/MMS messages and contacts is *not* a problem on Android.
> There are umpteen apps that do that kind of thing.

Yes - because "read SMS" is a permission which can be granted to apps
and not because messages received via SMS is just lying around somewhere
and every app can read it.

Also see:

<https://developer.android.com/reference/android/Manifest.permission#READ_SMS>


-- 
Arno Welzel
https://arnowelzel.de

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#145311

FromArno Welzel <usenet@arnowelzel.de>
Date2024-12-17 11:38 +0100
Message-ID<lsd2ktF56kU2@mid.individual.net>
In reply to#145236
Frank Slootweg, 2024-12-16 15:49:

[...]
>   As to "not all apps allow to backup their data.": With the USB
> connection, one can backup all app-private folders and files, so one
> *can* backup the data of all apps. Unless there's some other kind of
> restriction you're not divulging.

At least many Banking apps usually do not allow to backup their data.
And it does not matter, if the backup is done via ADB or as part of the
Google app backup.


-- 
Arno Welzel
https://arnowelzel.de

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#145326

FromFrank Slootweg <this@ddress.is.invalid>
Date2024-12-17 18:16 +0000
Message-ID<vjsctl.b3o.1@ID-201911.user.individual.net>
In reply to#145311
Arno Welzel <usenet@arnowelzel.de> wrote:
> Frank Slootweg, 2024-12-16 15:49:
> 
> [...]
> >   As to "not all apps allow to backup their data.": With the USB
> > connection, one can backup all app-private folders and files, so one
> > *can* backup the data of all apps. Unless there's some other kind of
> > restriction you're not divulging.
> 
> At least many Banking apps usually do not allow to backup their data.
> And it does not matter, if the backup is done via ADB or as part of the
> Google app backup.

  And *how* can those banking apps "not allow to backup their data"!?
Especially for the ADB case.

  Remember I said "Unless there's some other kind of restriction you're
not divulging.".

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#145362

FromArno Welzel <usenet@arnowelzel.de>
Date2024-12-18 00:30 +0100
Message-ID<lsefteF71r1U3@mid.individual.net>
In reply to#145326
Frank Slootweg, 2024-12-17 19:16:

> Arno Welzel <usenet@arnowelzel.de> wrote:
>> Frank Slootweg, 2024-12-16 15:49:
>>
>> [...]
>>>   As to "not all apps allow to backup their data.": With the USB
>>> connection, one can backup all app-private folders and files, so one
>>> *can* backup the data of all apps. Unless there's some other kind of
>>> restriction you're not divulging.
>>
>> At least many Banking apps usually do not allow to backup their data.
>> And it does not matter, if the backup is done via ADB or as part of the
>> Google app backup.
> 
>   And *how* can those banking apps "not allow to backup their data"!?
> Especially for the ADB case.

Their app manifest forbids it. This can be achieved like this:

<?xml version='1.0' encoding='utf-8'?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  tools:replace="allowBackup"
  android:allowBackup="false" />

The entry tools:replace="allowBackup" makes sure, that any libaries used
by the app which have their own manifest, do not allow backup accidentally.

And ADB will obey that and won't pull lany backups for those apps.



-- 
Arno Welzel
https://arnowelzel.de

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#145378

FromFrank Slootweg <this@ddress.is.invalid>
Date2024-12-18 10:27 +0000
Message-ID<vjubhs.k7g.1@ID-201911.user.individual.net>
In reply to#145362
Arno Welzel <usenet@arnowelzel.de> wrote:
> Frank Slootweg, 2024-12-17 19:16:
> 
> > Arno Welzel <usenet@arnowelzel.de> wrote:
> >> Frank Slootweg, 2024-12-16 15:49:
> >>
> >> [...]
> >>>   As to "not all apps allow to backup their data.": With the USB
> >>> connection, one can backup all app-private folders and files, so one
> >>> *can* backup the data of all apps. Unless there's some other kind of
> >>> restriction you're not divulging.
> >>
> >> At least many Banking apps usually do not allow to backup their data.
> >> And it does not matter, if the backup is done via ADB or as part of the
> >> Google app backup.
> > 
> >   And *how* can those banking apps "not allow to backup their data"!?
> > Especially for the ADB case.
> 
> Their app manifest forbids it. This can be achieved like this:
> 
> <?xml version='1.0' encoding='utf-8'?>
> <manifest xmlns:android="http://schemas.android.com/apk/res/android"
>   xmlns:tools="http://schemas.android.com/tools"
>   tools:replace="allowBackup"
>   android:allowBackup="false" />
> 
> The entry tools:replace="allowBackup" makes sure, that any libaries used
> by the app which have their own manifest, do not allow backup accidentally.
> 
> And ADB will obey that and won't pull lany backups for those apps.

  Thanks for your information. It might come in handy if I ever
encounter any such apps.

  FWIW, I'm not worried about my banking apps not being allowed/able to
backup their data, because any relevant data can most likely be
recovered from my accounts on the banks servers. I.e. if lost, the
on-device data is recoverable.

  N.B. It would be interesting to know if other computer programs - such
as Samsung's 'Smart Switch' - also honor the manifest settings, but
given my above mentioned low interest, I don't think I will try.

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#145390

FromAndrew <andys@nospam.com>
Date2024-12-18 19:15 +0000
Message-ID<vjv70p$8c1$1@nnrp.usenet.blueworldhosting.com>
In reply to#145378
Frank Slootweg wrote on 18 Dec 2024 10:27:04 GMT :

>> And ADB will obey that and won't pull lany backups for those apps.
> 
>   Thanks for your information. It might come in handy if I ever
> encounter any such apps.
> 
>   FWIW, I'm not worried about my banking apps not being allowed/able to
> backup their data, because any relevant data can most likely be
> recovered from my accounts on the banks servers. I.e. if lost, the
> on-device data is recoverable.
> 
>   N.B. It would be interesting to know if other computer programs - such
> as Samsung's 'Smart Switch' - also honor the manifest settings, but
> given my above mentioned low interest, I don't think I will try.

I also very much echo Frank's sentiment to Arno thanking him for edifying 
us as to why some apps can be backed up and others can't (unrooted).

I, like Frank, am not all that interested in the gory details; but it has 
always confused me why some apps and file managers can see the system 
directories on Android while other apps and file managers can't see them.

Specifically I've wondered why I can see a lot of the root system folders 
when I use adb and webdav servers with Windows File Explorer over USB.

If anyone cares, one file manager which *does* seem to see (read only) 
system folders on Android appears to be ZArchiver archival program.
 <https://play.google.com/store/apps/details?id=ru.zdevs.zarchiver>

It's not supposed to be only a file manager - but it shows the root 
partition. 

Maybe Arno can explain why that one archiver shows the file system so well?
Muntashirakon App Manager shows me it has some of the following permissions
android.permission.REQUEST_INSTALL_PACKAGES
android.permission.MANAGE_EXTERNAL_STORAGE
android.permission.ACCESS_SUPERUSER
etc.

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