android internal storage data recovery in 4.4.2 - android

I am trying to recover deleted photos from android 4.4.2 lg g2's internal storage, As I cannot connect the internal storage as a USB Mass Storage or as an Disk Drive, I cannot run any of the data recovery software.
If there are possibilities to connect as an USB Mass Storage or Disk Drive, or if there is totally different method to achieve this, Please let me know.
Edit : Wondershare Dr.Fone for android seems to be the only software that can scan, but it does not retrieve encrypted Images.

The program that I would use at work to recover deleted files or files from a failing hard drive is called Disk Drill. The one we used was for OS X but it looks like there is also a version from windows.
Although from the years of use I had with it, it was able to recover files that were deleted as long as that part of the disk had not been written over again. It will scan the disk and literally grab every file it can, even things that might be half way deleted or corrupt. If the device was encrypted it might have a more difficult time getting files back. I have not used it on a android devices but I would give it a shot.

Related

SD card files with encrypted data (_CONSOLE text in it), how to get my files back?

I have an micro SD card, that was in a Galaxy J5 with Android 7, and all the files are messed up now. (jpg, pdf, mp3)
Following characters can be found in the beginning in all of the files, with minor changes in each one.
<ŕ’Ż4i“µŢî Ś- `6S座uť?ŃÖ0Ü]#Î.0€Ň(QlüŚíď¦îRíb_CONSOLE sżăm:Ń ..
.. and then a lot of NULLs following.
The _CONSOLE part is there in every file. That's why I think that all files were manipulated with the same method.
I am looking for somebody who has seen this kind of files.
I have seen it several times, it appears file based encryption. It is not limited to Android Linux, some NAS devices use it (- eCryptFS file-level encryption).
Seems the OS has written something along the lines of a table into the start of file/a way to read them. I am pretty sure the data is still there, just not visible. Try opening them via a hex editor and check if the NULL's are really null bytes or unreadable data
I had a similar issue. My Galaxy S8 could not longer read the files in the SD card (exFAT) I had encrypted before. I must somehow have deleted the file .MetaEcfsFile that contains the Samsung encryption info. See also here. Btw, the files with the _CONSOLE artifact are encrypted with OpenPGP message format (RFC2440)
My solution was:
Undelete the .MetaEcfsFile with Recuva from a PC using an SD card reader.
Reconnect the Phone via USB cable and copy that file via that connection. Direct copy via SD card reader didn't work. The phone deleted that file again after phone restart.
After the file was copied via cable, the SD card files were still encrypted/unreadable, but...
The phone menu Biometrics and security finally proposed Decrypt SD card and after I started the decryption, I got an error but all my files were decrypted and readable again.

How to turn a portable SD card into internal storage via ADB command?

Android 6.0 Marshmallow’s introduces Adoptable Storage, a feature that allows use a SD Card as internal storage.
Is it possible to activate adoptable storage via ADB shell commands?
I managed succesfully perform this operation on my LG K8 LTE. I want to notice there are "500 xxx Unknown disk" errors problems, and give solution to avoid this. Solution is very simple.
Proper steps in ADB would be:
adb shell
sm list-disks
// HERE YOU GET YOUR DISK ID, SOMETHING LIKE "disk:179,64" - REMEMBER THOSE NUMBERS
sm set-force-adoptable true
// IN NEXT LINE, SIMPLY PUT THOSE NUMBERS AFTER "disk:" AND ALSO AFTER WORD "mixed" TYPE PERCENTAGE OF SPACE LEFT AS EXTERNAL, SO IN MY CASE:
sm partition disk:179,64 mixed 60
// IT TAKES TIME. BE PATIENT. WITH THIS LINE I TRANSFORMED WHOLE EXTERNAL SD INTO 40% OF INTERNAL AND 60% OF EXTERNAL
sm set-force-adoptable false
BANG! That's it! Now go to storage and usb, there click on internal part of SD and expand options, click on "use as internal" or something like that, last option, (I cannot see what was that because I already clicked it and everything works) apps are finally going on SD with OBB files! ;)
Have a good day!
I have done somewhat extensive research on this question online. I can tell you the steps, and they seem to work for everyone but me. Try them and let me know if they work for you.
Back Up your SD card, as it will be wiped.
If you don't already have it, download and install Java SE Development kit. The website is www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html. I used version 8u101 for Windows x64.
If you don't already have it, download Android SDK Manager. The website is developer.android.com/studio/index.html. Scroll almost to the bottom where it has "Get just the command line tools" and select android-sdk_r24.4.1-windows.zip for Windows. When it downloads, extract all to a location where you want to keep the folder.
Open the Android SDK folder and run the SDK Manager. (If it fails to run, see question 14504325 in stackoverflow). Follow the instructions on www.howtogeek.com/125769/how-to-install-and-use-abd-the-android-debug-bridge-utility/ to get it up-and-running.
When you have the command prompt open per the how-to-geek website instructions, enter "adb shell"
Then enter "sm list-disks". This will return the name of your microSD card. The instructions I was following showed a disk labeled 179:160, but my computer showed the disks as 179,32. This is where I'm stuck.
Finally, enter "sm partition disk:179:160 private", where the numbers are the name of your disk from step 6, if you want to adopt your whole SD card as internal storage. Otherwise, enter "sm partition disk:179:160 mixed 25" where the last number is the percent of the card's space used for external storage. I have not been able to get this to work.
See http://www.modaco.com/news/android/heres-how-to-configure-adoptable-storage-on-your-s7-s7-edge-r1632/ for the original instructions.
P.S. I tried this on a Samsung Galaxy On5, so that might explain why it hasn't worked.
This has now been disabled on (at least) some Samsung tablets.
I have a galaxy tablet that has been running with a huge sd card formatted as internal storage.
I purchased another more recently and on this adb format command did not work (it just immediately returned to the command prompt).
I have had to do a factory reset on the older machine and now find that it too will not allow the SD card to be formatted as internal memory - it behaves just as the newer one does.
My guess would be that Google have updated android to 'respect' the settings of the suppliers UI.
This has (of course) completely messed up my system, as the backup/restore was based on main memory of over 100GB, not the 16GB the device actually has.

Android not enough storage memory

I created an Android app sometime ago. What the app does is basically download a list of files (images and videos) and play them in a loop (like a Playlist).
These files are saved in the default Android External Storage Directory. I get it using this method:
Environment.getExternalStorageDirectory().getAbsolutePath();
Until now I never had storage problems but testing the app on an old device (which has less storage capacity) I realised that I have a problem when the files (PlayList) size is bigger than the device storage capacity.
I have thought (and research) about using an USB stick, but I don't think that would be a good solution since I cannot know 100% sure the USB path (it can be different for each device).
Any ideas about how handle this problem? Maybe another solution instead of using the USB ?
Here is what I have researched:
How to access USB Path in android?
How to find USB storage path programmatically?
android How to write files to a usb memory?
Do you need to store the actual images and videos on the device - why not just store their location and get them dynamically. I've not used a recyclerView but I thought that it could do something like this, but could be wrong.

SDCard content exist but cant see them

I am having very Strange problem with my Samsung Nexus with Android 4.0.2. I wrote a simple program which basically create file each time user presses a button. My program is working great on other devices where as on Galaxy Nexus Windows/Mac can not see those files on SD card, but when i do adb shell i see all files on SD Card.
I retest this on another Nexus which has Android 4.0.4 but still same result.
What could be the reason?
You probably need to index your files via MediaScannerConnection. Quoting myself from a blog post from last year:
...the MTP contents are not based on the literal contents of external storage. Instead, MTP contents are based on what files have been scanned by MediaScannerConnection. If you write a file to external storage, until and unless that file is scanned by MediaScannerConnection, it will not be visible to users over MTP.
External storage is scanned on a reboot and possibly on a periodic basis. Users can manually force a scan via utilities like SDRescan. However, the best answer is for you to use scanFile() on MediaScannerConnection to update the media database after you close your file. This will make your file immediately available to the user.

Can Android's internal memory be mapped to a drive letter on PC?

When an Android device is plugged in to a PC (through USB?), is the internal file system mapped to a drive letter on the PC? So that one can copy files to and from the Android under Windows?
And, can Emulator simulate the situation when it's plugged in? How?
Thank you in advance!
Yes, it CAN be mapped to a drive letter. It was much easier with something like a Droid X (Android 2.3), since it would show up as a mass storage device (disconnecting the card from your phone in the meantime), but it's also possible on newer phones such as the LG G3 if you're willing to install 2 free programs, which you probably would like to have anyway.
ES File Explorer - Remote Manager (FTP Server)
First, you need a file manager, not only because the built-in one is useless, but also because you need an FTP server. Install "ES File Explorer" on your Android Device. Then in the options, turn on the "Remote Manager" option, which will activate the FTP server and show you its local address like "192.168.1.3:3721. You can now access your phone as an FTP site from your computer when on your local WiFi network.
Net Drive - Remote Drive Mapping Utility
Next, all you have to do is install NetDrive: http://netdrive.net/ It's freeware and seems to be used by a lot of companies, because it lets you map cloud storage to local drives. That will allow you to map your FTP server on your phone as a local drive.
Don't bother trying to map an FTP site with explorer. First, you may run into a problem that's apparently caused by Chrome, where you can't even add an FTP network location. You'll get an unexpected error telling you the path format is invalid. Interestingly, that is solved by opening the registry editor, then under [HKEY_CLASSES_ROOT\ftp] add a key named "ShellFolder" with string value "{E436EBB6-524F-11CE-9F53-0020AF0BA770}". The error will immediately cease occurring, with no restart or any other action required. Just go back in and add the ftp network location. That, however, still does not allow you to map it to a drive letter, which is why you need NetDrive.
As of Android 4, the wise ones have removed USB Mass Storage support for accessing the internal phone memory. So you no-longer get direct block-access (or a driver letter in windows). You can usually choose on the phone between MTP, or PTP (Media / Photo Transfer protocols) for whichever your OS supports better.
If your device has removable storage it should still support USBMS (with a drive letter) for that partition. At least Android still supports that, but your Manufacturer or Carrier-ware may still fail you here.
However, when it comes to the phone memory, there was a trade-off made in Honeycomb. Unified storage prevents wasted space (no more separate storage for phone / data, and having one fill up first and having confused frustrated users trying to move apps to SD, etc). The trade-off requires that:
Android can no longer ever yield up the storage for the host PC to
molest directly over USB.
Initially for Mac and Linux where support for MTP/PTP has been slower, You can use an FTP app on your phone. But now there is an increasing number of Desktop (PC/Mac/Linux) apps that understand and support the MTP or PTP protocols. You just don't get block access and so you can't get a drive letter without some hackery / third party software.
There have been hacks over the years to make FTP or WebDav or some other protocol work behind a windows drive letter, and something like could still work work for these MTP/PTP protocols, but I have yet to see any such consumer usable software for windows.
If your Linux distro doesn't include MTP support, gMTP seems pretty popular.
You can mount the device via USB but (in Win7 at least) it doesn't appear to have its own drive letter; rather it's treated like a camera or another media device. It doesn't mount automatically; you generally need to "opt-in" in the notification area with something like "Turn on USB storage"
Don't know about emulators.
Using Eclipse you can push and pull files to the emulator using the DDMS perspective. Doing similar on a real device, iirc will require root access to the device, at least to get to the 'sensitive' areas.
The SDK tools will also provide a way of push and pull via the command line.
possible with https://github.com/billziss-gh/sshfs-win
difficult finding good sshservers for android, know that at least one works but doesn't autostart at wifi and have to manually restarted, which it was possible to "come home from work, drive is connected"
this server seams to work fine
https://play.google.com/store/apps/details?id=net.xnano.android.sshserver.tv&hl=en_US
Wanted to backup(incremental) android device using Areca backup utility which requires src and dest to have drive paths.
After trying various methods like adb-sync, Syncthing, webDAV, etc. Got it working with ftp sharing.
Download any ftp server app. I used "WiFi FTP Server" by Medha Apps on Playstore to create a ftp server something like this- ftp://username:*#xxx.xxx.xxx.xxx:yyyy where username can be set in app settings and xxx is i.p. with yyyy as port number.
Map ftp URL to drive path by using free app- "DirectNet Drive"
Use the drive as if it's in your own system, though it will be slow being wireless.

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