Hello Experts,
I have an AT&T Samsung Galaxy SIII I-747. It was rooted with custom ROM Slim BEAN. After Incorporation of COmpany's Policy, I'd to Encrypt my phone to use Company's emails. There were multiple updates available from Slim bean but I could not install them till iN Decrypt my phone.
The decrypt option was disabled by device administration policy and inspite of removing the email account, it did not enabled the decrypt option in the Security Settings. After reading many blogs, I got to know that formating the device was the only option.
I recovered my phone with CMW recovery mode, and as per instructions, formatted the /system and /cache folders. I was unable to format the /data folder as it was encrypted and it did not allow me to mount.
I am stuck in a situation where whenever i re-start my phone, it just comes to main screen of SAMSUNG and hangs there as the system folder is formated.
I am unable to mount /data folder as it is encrypted. My Phone is no more than a paper weight now
Please help me with your expertised suggestions.
Related
I am wondering if there is anyone interested in bringing transparent "SD-card" encryption to the Galaxy Nexus. On Android 4 there's already encryption for the data partition, also the Galaxy Nexus is using MTP for mounting the "SD-Card" on Windows. So using an encrypted "SD-card" on Windows or somewhere else shouldn't be a problem, as transparent encryption shouldn't affect MTP? So this would lead to the following ideas / requirements:
1) We need an option to disable mounting of the internal "SD-card" when an USB connection is established or else everyone can simply read the content, as the encryption is transparent.
2) Encrypt the "SD-Card" in a transparent way, mount it on boot.There are already implementations of transparent encryption, e.g. LUKS Manager. Use the data partition (encrypted by Android's built in encryption) to store a mount script that contains the password to mount the encrypted "SD-card"
3) Optional: Split the "SD-card" in two partitions, leave one unencrypted so we still have a partition we can use to store backups done during recovery etc.
Anyone interested in doing this?
This ain't development. :'(
Sent from my Galaxy Nexus using Tapatalk 2
if u use a secure lockscreen, sequence, pin or password..and ur device is locked, the content of the sdcard doesn not appear when u attach it to the computer, unless u unlock ur device
andQlimax said:
if u use a secure lockscreen, sequence, pin or password..and ur device is locked, the content of the sdcard doesn not appear when u attach it to the computer, unless u unlock ur device
Click to expand...
Click to collapse
Thanks, good information Still would be nice to be able to explicitely prevent the mounting in general like it was possible on Android 2.x. Anyway, one problem solved
So, I bought my wife a new Nexus 7 (2013) as a wedding gift last month and she loved it. However, a couple days ago she installed an update and got the 'hanging at x' issue. After trying to fix it without a full wipe, I was forced to wipe it. Unfortunately, she took a lot of photos of our honeymoon on the Nexus 7's camera. I am trying to recovery those files and have tried Recuva and Odboso FileRetrieval, but neither one seems to recognize or read the Nexus 7 when plugged into my laptop and thus cannot even attempt to recover any files. Does anyone have any tips on how I can get one of these types of programs to recognize the Nexus 7 when it is plugged in so I can see if any file recovery is possible? Thanks in advance.
If the files are still on the device: have you tried installing a file manager (like "AntTek Explorer" or "Astro FileManager" or something like this)? If not, try to connect the Nexus to your computer, it should show up as an mass-storage device - from that you could take a raw snapshot and give some file recovery tools a try.
Your data is most likely gone.
An ext4 partition is used for '/data' that also includes a '/data/media' folder that is mounted as a virtual '/sdcard'. So you need a recovery tool that understands the ext4 file system. Even if you find a tool to recover files from ext4, Android 4.3 uses trim and if a trim cycle did run in the meantime (runs every 24h if there is idle time + enough battery), your data can't be recovered anymore.
Even after you've accidentally deleted and/or formatted the partition, the data is still on your device. There are apps in the Playstore that claim to do the same thing as similar PC software does as long as you have not overwritten the data.
Hello!
I am a security researcher, my project is to secure data on android devices by live replacing /data/ container with encrypted one.
I did this many times on different devices and with P601 I am encountered a problem.
The problem is - device ignores filesystem changes like there are no of them.
For example - if you unmount/move /data/ on any other android device - system will hang up, because it will lose connection with applications, cache and user settings. But if you do so on Samsung Galaxy Tab 10.1 2014ed - nothing will change! Android will just ignore replacement/remove and will still read/write to data partition wherever it is. How this is works? It is connected with KNOX framework?
Hello,
Happy Christmas Eve all,
I'm having a nightmare of a time with my Note 2. It was installing an app update from the play store earlier and I noticed the phone had powered off (assumed battery had died).
On powering up the phone after the Samsung boot screen I'm presented with the set up screen and continuous pop ups informing me system processes have crashed although phone was fully set up before the issue.
I then tried to enter stock recovery and saw a message regarding error when trying to mount /data.
Rather stupidly I have no backup of the internal data which includes a lot of holiday photos I'd like to save.
My question is are there any means I could use to try and recover the data?
I can enter stock recovery and download mode which I'm hoping will improve my chances.
Also when hooked up to the PC, Kies doesn't recognise the device and tells me to use Smart Switch, also when the PC did eventually reognise the phone it showed internal storage as 107mb with 0 free and shows no folders or files within.
Has anyone come across this before or have any advice on how I can try and recover my data?
Many thanks,
Galaxydude1
Galaxydude1 said:
Hello,
Happy Christmas Eve all,
I'm having a nightmare of a time with my Note 2. It was installing an app update from the play store earlier and I noticed the phone had powered off (assumed battery had died).
On powering up the phone after the Samsung boot screen I'm presented with the set up screen and continuous pop ups informing me system processes have crashed although phone was fully set up before the issue.
I then tried to enter stock recovery and saw a message regarding error when trying to mount /data.
Rather stupidly I have no backup of the internal data which includes a lot of holiday photos I'd like to save.
My question is are there any means I could use to try and recover the data?
I can enter stock recovery and download mode which I'm hoping will improve my chances.
Also when hooked up to the PC, Kies doesn't recognise the device and tells me to use Smart Switch, also when the PC did eventually reognise the phone it showed internal storage as 107mb with 0 free and shows no folders or files within.
Has anyone come across this before or have any advice on how I can try and recover my data?
Many thanks,
Galaxydude1
Click to expand...
Click to collapse
Anyone?
in recovery you can mount internal storage, but I'm affraid, that it's SDS
yaro666 said:
in recovery you can mount internal storage, but I'm affraid, that it's SDS
Click to expand...
Click to collapse
Thanks for the reply yaro,
The phone was completely stock so no custom recovery installed. Do you know if there is anyway for me to recover the photos that were on the /data partition?
I've seen a few posts for other devices mentioning reflashing certain files via Odin to then allow recovery of files in /data but nothing definitive.
Any help would be greatly appreciated.
Thanks,
Galaxydude.
Galaxydude1 said:
Thanks for the reply yaro,
The phone was completely stock so no custom recovery installed. Do you know if there is anyway for me to recover the photos that were on the /data partition?
I've seen a few posts for other devices mentioning reflashing certain files via Odin to then allow recovery of files in /data but nothing definitive.
Any help would be greatly appreciated.
Thanks,
Galaxydude.
Click to expand...
Click to collapse
try flashing twrp via odin and then mount internal storage in recovery or use adb to access files on pc
yaro666 said:
try flashing twrp via odin and then mount internal storage in recovery or use adb to access files on pc
Click to expand...
Click to collapse
Thanks for the reply yaro I'll give that a try,
Cheers,
Galaxydude.
Hello, I have a little f3 running miui 14 based on Android 13 I forgot my lock pattern I tried to solve it by deleting the lockscreen file from twrp it already removed the screen lock but when I enter the device it leaves me locked, that is, when I try to open an application I get locked indicates a sign that says wait until the device is completely rebooted before opening applications failure caused by this action that I did from twrp . when accessing the security section Where it is encrypted and credentials it appears to me as encrypted and when I touch it it does nothing .I know that the solution is to make a full flash but the photos that I have inside the phone are extremely important and I don't have backup copies of them almost 30 gigabytes of family photos so I ask for any help or explanation that can help me I have advanced knowledge in this field but had never experimented with the security of Andorid 13 from Miui. logically I tried to connect it to the PC in mtp mode but it does not show me any device driver problem it is not only that the Data partition is encrypted from twrp it asks me for a password
Skyfall191299 said:
I tried to solve it by deleting the lockscreen file from twrp it already removed the screen lock
Click to expand...
Click to collapse
You have access on /data through TWRP. Problem solved.
@Skyfall191299 please don't ask off-topic. you have deleted locksettings.db which contains the necessary link to synthetic password. Either restore the backup of locksettings.db and remember your pattern, or factory reset device. there is no way to decrypt userdata without pattern, not even in TWRP*
WoKoschekk said:
You have access on /data through TWRP. Problem solved.
Click to expand...
Click to collapse
* only for some recent insecure MIUI ROMs with FBE or older ROMs with no FBE encryption at all.
alecxs said:
only for some recent insecure MIUI ROMs with FBE or older ROMs with no FBE encryption at all.
Click to expand...
Click to collapse
He deleted /data/system/locksettings.db! With an encrypted device it's impossible to find and delete that single file on /data.
but how he deleted without knowing the pattern?
alecxs said:
but how he deleted without knowing the pattern?
Click to expand...
Click to collapse
don't ask me... ask @Skyfall191299
WoKoschekk said:
You have access on /data through TWRP. Problem solved.
Click to expand...
Click to collapse
I mean the personal data of the mobile, not the /data path, when I enter /storage (where the user's folders are stored) nothing appears
Skyfall191299 said:
not the /data path, when I enter /storage (where the user's folders are stored) nothing appears
Click to expand...
Click to collapse
Everything you stored or installed since last factory reset is stored on /data. Everything. Your /storage/emulated/0 path isn't mounted in TWRP but you have /sdcard instead. But both of those paths are only tmpfs that lead to /data/media. That's exactly that path that TWRP does not backup. It's your internal storage.
Skyfall191299 said:
Hello, I have a little f3 running miui 14 based on Android 13 I forgot my lock pattern I tried to solve it by deleting the lockscreen file from twrp it already removed the screen lock but when I enter the device it leaves me locked, that is, when I try to open an application I get locked indicates a sign that says wait until the device is completely rebooted before opening applications failure caused by this action that I did from twrp . when accessing the security section Where it is encrypted and credentials it appears to me as encrypted and when I touch it it does nothing .I know that the solution is to make a full flash but the photos that I have inside the phone are extremely important and I don't have backup copies of them almost 30 gigabytes of family photos so I ask for any help or explanation that can help me I have advanced knowledge in this field but had never experimented with the security of Andorid 13 from Miui. logically I tried to connect it to the PC in mtp mode but it does not show me any device driver problem it is not only that the Data partition is encrypted from twrp it asks me for a password
Click to expand...
Click to collapse
CC: @WoKoschekk
@Skyfall191299 In order to declutter the following thread on advice of my esteemed team mate @alecxs
[Deprecated] Universal DM-Verity, ForceEncrypt, Disk Quota Disabler [11/2/2020]
Hi all! For the past couple of months, I've been looking into making a more universal solution to disable dm-verity and forceencrypt. Needing to take different zips, modify them for different devices, and then cross your fingers when you switch...
forum.xda-developers.com
I've moved your above quoted post and other related posts out of that thread and create a new one for you in order to be able to discuss issue with broken encryption after deleting lockscreen from TWRP.
Regards
Oswald Boelcke
Senior Moderator