Adopted SD card, forgot- recover data? - General Questions and Answers

Hello guys,
My partner changed her SD card without realising the exisiting one was "adopted" as internal storage. All of her photos of our kids are on there. She clicked "forget sd card" at the prompt without realising this makes the SD card essentially useless to recover the data.
Is there any way to recover this data? Obviously the PC does not recognise the SD card as its encrypted, so we cannot pull the photos off that way. The phone asks to format the device so I cannot pull the photos off with a usb cable either.
From what I've read, the phone generates a key for the encryption using the screen unlock pattern. We know what this is, so have a chance of unlocking the SD card as we know what the master key is. The phone is not rooted- as far as I know this changes the encryption on that end, so any attempt to root the phone to get access will not work as the keys will not match anymore. Are there tools to brute force the encryption on the SD card? I would hate to lose the data on this.
Thanks

Related

[Q] SD Card encryption time

hi,
how long it takes? 32GB card. And - after end I'll have to put PIN code everytime I'll connect device as mass storage? For now I don't even know it's done or not, but I'm backing up my data from PC, and phone doesn't wants any code

Flashed firmware, unsupported SD

Hi I am following the rooting guide for my Sprint S7 and it says to be on PE1. I flashed PE1 without knowing it would wipe all my data..
My SD card was set as adoptable storage. It is now unrecognized/unsupported and the phone wants to format it. Putting the card into a computer does nothing.
Is there any adb command to trip the phone back into adoptable storage? Or to set a flag to turn the card back into portable? Is there anything I can do to make the card readable so I can get all my stuff off of it?
Once you had your phone set up as adoptable storage on a stock Samsung there is the possibility that it was encrypted, as the Samsung Galaxy S7 is encrypted by default. did you use SD card encryption at any time? I'm thinking if I remember correctly you have to format before using SD adoptable and you also have to format to return to use as regular SD card, so I have to say I think your out of luck. Find out what partition type it's formatted as, and Try a data recovery app if u can find one that is compatible with that format. Last of all I know you can use adb to setup adoptable storage again by typing a certain command line but I don't know if it will format the card or if your stuff will be there after. Best to research these things beforehand to avoid crucial data loss but we all learn somehow.
Cheers!

Get data from sd card fromatted as internal(Android 6 Marshmallow)

I have a micro sd card 32gb Transcend which I use as android internal memory and was working for one year.
Yesterday suddenly stopped working and my Motorola moto g(3rd) device not recognizing it anymore.
When i insert this card and starting my device it shows that it "checking" it for 2 minutes and then it shows "no card".
I would like to get my data from this card(photos and videos) is there a way?
I have a second moto g device to which when i insert this card it shows "cannot read card" and asks format "as internal" or "as storage"?
If i choose "as storage" i will lose my data?
Please move this post to the appropriate thread.
thanks for helping
The card was formatted as internal before it was stopped being recognized. So the card is tied to that phone and is encrypted. No matter which of the options (adoptable or portable) you choose, the second Moto G (or any other marshmallow phone) will format it first deleting all the data. I am not sure if you can recover your personal data though, sorry.
Broadcasted from Zeta Reticuli
Welcome to the joys of adopted storage... It puts incredible amounts of read/write cycles on the card, causing "early" failure. Really this is not early failure, sd cards have limited writing capabilities and using adopted storage does this causing failure.
When you use adopted storage, the data is encrypted to that device and there is a decryption token generated that is stored on the device, for whatever reason that encryption token is no longer valid (likely due to a failure of the card) and the data is lost.
Your card can no longer be trusted, I would suggest replacing it.
This is another reason why regular backups of data, both manually and automatic, are essential in devices. I suggest implementing a backup plan in the future.
acejavelin said:
Welcome to the joys of adopted storage... It puts incredible amounts of read/write cycles on the card, causing "early" failure. Really this is not early failure, sd cards have limited writing capabilities and using adopted storage does this causing failure.
When you use adopted storage, the data is encrypted to that device and there is a decryption token generated that is stored on the device, for whatever reason that encryption token is no longer valid (likely due to a failure of the card) and the data is lost.
Your card can no longer be trusted, I would suggest replacing it.
This is another reason why regular backups of data, both manually and automatic, are essential in devices. I suggest implementing a backup plan in the future.
Click to expand...
Click to collapse
Is there any application that can get this "decryption token" from device and read the sd card?
makis_g3 said:
Is there any application that can get this "decryption token" from device and read the sd card?
Click to expand...
Click to collapse
Nope. The purpose of encryption token is to prevent the use of card in other systems. It will take a great deal of hacking to get the token and put it into another phone, that too if it's possible at all. The token is randomly generated AFAIK and is not supposed to be used between different devices.
Broadcasted from Zeta Reticuli
makis_g3 said:
Is there any application that can get this "decryption token" from device and read the sd card?
Click to expand...
Click to collapse
Not really... IF (and that is a big if) the data is intact AND you are rooted already, the token can be retrieved via an ADB superuser shell, then you need to have a modern Linux installation that has a microSD card reader and you need a fair understanding of using the command line and mounting an encrypted file system manually. The big if here is if the file system is not corrupted, but if it wasn't corrupted then the phone would be able to use it. Also, if you are not already rooted (actually, your bootloader unlocked) then the process will wipe the device including the decryption token.
http://nelenkov.blogspot.com/2015/06/decrypting-android-m-adopted-storage.html
If I unistall from my device applications that used to be in sd card, is there any chance for sd card to work again?
Thanks for your replies
makis_g3 said:
If I unistall from my device applications that used to be in sd card, is there any chance for sd card to work again?
Thanks for your replies
Click to expand...
Click to collapse
No... If it can't read the card it can't use it. The fact it's checking for so long says it can do something with the card, but that operation if failing. If you are already rooted there maybe some options of manually doing an fsck but other than that the best you can hope for is to reformat the card in another device and salvage the media for non-critical usage as standard storage, but the data is lost
You could try rebooting several times, you might get lucky and it will mount by chance, but don't much hope in it.
My GF has a Moto G3 2015 (1GB RAM, 8GB storage) which I had configured with a 32GB SD-card as adoptable storage. After this month's OTA, the SD-card is no longer recognized and there seems no way to recover any of the data. It also checks a couple of minutes for the SD-card and then says 'no card'. If I put the card in an adapter and a Windows pc, it says the card is healthy in disk management but it does not show the card in Explorer, I guess due to the formatting and encryption.
This is the second time her phone has issues with adoptable storage. First time the internal storage was full while there was still plenty of room on the SD-card, but this was apparently because I had only configured the SD-card as adoptable storage after 6 months of use, which caused the internal storage to have filled first. I expected adoptable storage to treat the internal storage and SD-card as one, but this is not true. I gave the phone a factory reset and immediately set the SD-card to adoptable storage before installing any apps, this took care of the problem until now.
I would not recommend using this option on any phone. Just buy a phone with enough storage and use the SD-card as external storage which is what I do on my Honor 7. I had told her to wait for the 2GB/16GB version which was going to be released a couple of months later but you know women, once they have their mind on something, they can't wait .

decrypting SD card with software

Hi everybody
I had to wipe my S7 edge due to the pattern not being recognized (known bug) and I would like to know if there is any hope recovering my pictures from my SD using software, when I googled "recover photos encrypted sd Android" the first page is full of software, some form easeus, rescue digital media, Yodot, etc, I even found one that say to just copy the files to a pc, wipe the SD card on phone, copy the files back to SD, encrypt SD and the decrypt and I should have my pictures back, I try this last step as it doesn't require any software but still wondering if any of the software mention will work
thanks
Advice on decrypting SD card with software after factory reset
Any one?

Cannot Access MicroSD Card within Windows

Hello,
I have a HTC A9 phone using Android 7.0. I replaced my SD Card with a larger one for more storage. I am trying to copy my music I downloaded over the years from the old SD Card onto my Windows 10 and 8 operating system. Both systems say the SD Card needs to be formated. The I receive an error "The file system cannot be recognized". I believe it might be a GPT file system, maybe I am wrong.
My question is, how can I access the SD Card and remove my music without losing it? Any help would be appreciated.
Thank you,
Peter Costa
Hello. Try to reinstall driver in pc. Or try paste card inserted in mobile. If you have SD card encryption contra changes in other devices, please turn off it Pc doesnt see you old card because SD card may be encrypted (visible only in your phone).
You are correct that the card is encrypted from being previously used by my HTC A9. Unfortunately, my phone had to be reset and the SD Card was replaced with a larger one. The encryption was not decrypted or my files removed. Now when I take out the new card and insert my old card, the phone only gives the option to format it. I have over 3000 full CD's on that encrypted card I can't get access to.
My brother helped me fix my phone but he did not know what was on the card. I guess no good deed goes unpunished. Just looking for a possible solution.
Maybe some type of data rescue or forensics company. Anyone have any ideas or maybe I am not understanding something. Any more advice.

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