Decrypt SD Card option missing

[Dunan]

Hi everyone, I have a question about SD card encryption on my Samsung Galaxy A55, and I’d like to confirm whether what I’m seeing is normal behavior in One UI.

My situation:
- I’m using a 1TB SD card in my Galaxy A55.
- I encrypted the SD card using the phone’s built‑in encryption feature.
- The encryption process completed successfully (I received the “SD card encrypted” notification).
- In the security settings, the phone shows: “This SD card is already encrypted and working normally.”
- However, there is no option anywhere to “Decrypt SD card.”
- The menu still mentions the word “decrypt,” but the system only shows the current status and the message that I must format the card if I want to use it on another device.

What confuses me:
Even though the menu references “decrypt,” there is no actual button or option to decrypt the SD card.
I can only see that it’s encrypted — I cannot reverse the encryption without formatting.

What I want to know:
- Is it normal that in One UI 8.0 (Android 16) the decrypt option no longer exists, and the only way to remove encryption is by formatting the SD card?
- Is this an intentional change by Samsung/Android, or could it be an issue with my device?
- Why does the menu still mention “decrypt” if the function is no longer available?

The SD card works perfectly and shows no errors. I just want to understand whether this behavior is expected.

 

 

 

Thanks in advance.

[arianwen27]

A few things. Firstly, I don't actually see anywhere in the screenshots where it mentions decryption. Though I know it 100% used to, I've used it on my Motorola moto g 3 many years ago lol

Now, SD card encryption and decryptipn has been a feature of android for many years now, it's not a samsung specific thing.

From what I have gathered, it sorta seems like sd card encryption has been forgotten about and sorta abandoned. It still works because it's in default android, but I don't think samsung has touched it in years. I say this as since 2021, people have reported the decrypt option missing. It happens more and more the more recent I check. It might break after updating the system software. As in, encrypt in one ui 7, update to one ui 8, decryption button goes away. Same for 6 to 7 and 5 to 6. It's a niche topic so I'm going off reddit and forum posts.

So my guess is it's a really old feature that was sorta forgotten about and is slowly getting more and more buggy. Encryption will still work and the card will work while encrypted, but decryption seems a tad broken.

It's not a giant issue having the card stuck encrypted. You can connect your phone to your pc via a usb cable and transfer the data off the card to your pc. This decrypts whatever you transfer to the pc. So transfer everything you want to the pc, then format the card. This wipes it and removes the encryption.

[Dunan]

 

Thanks for the explanation. I’m attaching another screenshot where the word “decrypt” actually appears in the menu title, even though there is no “Decrypt SD card” button anywhere in the settings.

Just to clarify my main concern:
The SD card works perfectly — I can read and write files without any issues, and the phone doesn’t show any error messages. However, an AI assistant suggested that the missing decrypt button might mean the SD card is corrupted or not being detected properly, and that’s exactly what I want to rule out.

From what I’ve seen so far, it looks more like a software/One UI behavior than a hardware problem:
- The card is recognized and reported as encrypted and working normally.
- There is no decrypt option, only the warning that I must format the card to use it on another device.
- The menu still mentions “decrypt”, which feels like leftover wording from older Android versions.

So my real question is:
Given that the card works fine and the system reports it as normal, is it safe to assume the SD card is not corrupted, and that the missing decrypt button is just how newer One UI/Android versions behave?

Thanks again for your help. Sorry for the horribly long text...

[arianwen27]

Yeah, I'd assume the card is fine. If it was corrupted you'd see things missing or it would error when trying to load it. I'd put it down to the feature being bugged