Edit

How to Encrypt Files on Your SD Card Using Your Android Phone

Edited by Clifford, Charmed, Lynn, Lhynne27 and 5 others

Android devices have implemented several security features that you can use such as setting password and patterns on our lock screens to stop people from accessing our device in general. However, there is a security feature that is mostly overlooked and that is keeping data on our SD card safe and secure. You could easily do this by encrypting files in your SD card. It could also be troublesome for you to enter a password every time they want to access files in your SD card, so this is not a feature that everyone will want to use. However, in special cases wherein vital personal data is stored in the SD card, it could be a great help as an added protection on your files.

Was this helpful? Yes | No | I need help

Instructions

  1. 1
    Tap the "Settings"
    beside
    icon on your Android phone and scroll down the menu until you reach "Security".
    beside
    option
    .
    This menu includes a wide range of setting and toggles that you can alter to change current and add new security elements on your android device.
    Was this step helpful? Yes | No | I need help

  2. 2
    Tap on the "Security" button, then on "Encryption".
    Tap the "Encrypt external SD card" tab located at the top of this menu to begin the encryption process. You could also check out the encrypt device option which outlines the process of encrypting your phone and what it actually does to your phone.
    Was this step helpful? Yes | No | I need help

  3. 3
    If you don’t secure your phone with a password, you will find that the Encrypt SD card menu does not enable you to select any files to encrypt.
    To be able to select any file on your SD card, you need to add a memorable six-character password to your device.
    Was this step helpful? Yes | No | I need help

  4. 4
    Navigate back to the "Settings"
    beside
    menu. Touch "Security"
    beside
    .
    Tap the "Screen Lock" menu and select the screen lock option from the list. From here you have to select the password tab. Once you are done with setting up your password, it will go back to security tab. You'll notice the "Change screen lock" option. It means that password has already been set up on your phone.
    beside
    beside
    beside
    beside
    beside
    beside
    Was this step helpful? Yes | No | I need help

  5. 5
    To start the encryption process the first thing that you need to do is to set a password on the SD card.
    Your new password is relatively easily set. Insert the card into the phone and then follow the prompts that will allow you to set your SD card password. If you try to give your SD card a password that consists of less than a minimum of six characters with a letter included anywhere within the password it will error and stop you and you'll have to start again. Some requirements for the password are in place.You have to confirm your password by adding it a second time for your own safety before your password is saved to your phone. WRITE YOUR PASSWORD down or make it easy to remember.
    Was this step helpful? Yes | No | I need help

  6. 6
    After your new password has been set, go back to the external SD card menu.
    You should be able to select the types of files you want to encrypt on your SD card. If you choose to encrypt media files, expect that the encryption process could take a while, depending on the number of media files that you have on your phone.
    Was this step helpful? Yes | No | I need help

  7. 7
    It would be advisable to read through the next pages, as it would guide you to the encryption process of the files that you want to encrypt on your SD card.
    The encryption process will start after you have confirm that you have read through details
    beside
    beside
    Was this step helpful? Yes | No | I need help

  8. 8
    The encryption process could take from several seconds to several minutes, depending on the size of your SD card.
    You could check how the process is going by pulling down the notification area, which will show how long it will take.
    Was this step helpful? Yes | No | I need help

  9. 9
    After the process is finished, your phone will take you back to your home screen.
    You'll also see in the "Notifications" if the SD card is already encrypted.
    beside
    Was this step helpful? Yes | No | I need help

  10. 10
    If this wiki helped you... Give our volunteer authors a

Every time you try to access the contents of your SD card, you need to enter the password that you have set up previously

Get in your SD card if you forgot your encrypted password. And what does encrypting an SD card do? If you encrypt a file on your phone what happens?

Unfortunately, it is virtually impossible to access or decrypt the files on your SD card without the right password. Android's encryption algorithm is basically based on two major factors - the mobile device and the password. Lose any of these, and your encrypted SD card files will be inaccessible. You can only decrypt the SD card files by inserting the SD card on the mobile device that was used to encrypt it and by entering the correct password when the device is powered on.

The password or key is then stored into your mobile device's Random Access Memory (RAM). Theoretically, every time you access a file from your encrypted SD card, Android goes through the RAM first to retrieve the key and use it to decrypt the file. This is the reason why dealing with encrypted data is relatively slower than the opposite.

Was this helpful? Yes | No | I need help

Why does it work this way? What does encryption mean anyway?

Encryption is essentially classified as a high level data storage security process. When you encrypt a file, you are basically altering its form using a specific algorithm so that the operating system will not be able to readily classify or identify it. With advancements in information security, the encryption algorithms being employed nowadays are basically "fool-proof". This means that there is no viable way of opening an encrypted file other than getting a hold of the key. Even hundreds of supercomputers would take thousands of years to open an encrypted file.

Was this helpful? Yes | No | I need help

Encryption is designed to work this way for one obvious reason: Security. This ensures that sensitive data will not be compromised should it fall into the hands of intruders. But the catch is, it could also work against you if you are not mindful.

Was this helpful? Yes | No | I need help

However, there are accounts of encrypted data storage media being decrypted by freezing. This process is fairly sophisticated and would require considerable expertise to carry out; yet it still does not guarantee successful decryption. This process basically involves the freezing of the device by any logical means possible in order to slow down the vanishing of data from the RAM after it is powered down.

Was this helpful? Yes | No | I need help

With the RAM data intact, a computer expert could copy the data to a file and use programs that could automatically analyze it. And because the encryption key is stored in the RAM as the mobile device was powered up, there is a good chance that the key can be retrieved using this process.

Was this helpful? Yes | No | I need help

However, for this to work two important conditions must be satisfied - the device is powered on and it was powered on using the correct encryption password. This means that the freeze process can only be used if you have turned on your device using the correct password beforehand but forgot the password later on with the device still powered on.

Was this helpful? Yes | No | I need help

The bottom line is that forgetting your encryption password means trouble. It is like locking yourself up in a prison you built. For this reason, you should consider all factors before encrypting your SD card. One good rule of thumb: If it is not that sensitive, stay off the encryption route, especially if you have bad memory.

Was this helpful? Yes | No | I need help

Tips Tricks & Warnings

  • There is no limit to the files that you can encrypt in your SD card. However, it would take some time if you happen to encrypt several files at once.
  • Once your SD card is encrypted using your phone, you cannot use the files on the SD card on other phones unless you decrypt it first.
  • Performing a factory reset on your phone will make the encrypted file on your SD card unusable.


Questions and Answers

How do i get all my stuff on my sd card to my new phone?

I just got a new phone and i wanted all my pictures and stuff on to it but for some reason when i put in my sd card it dosent show up and how do i transfer all my contacts over to it

Its as simple as inputting your SD card into the new phone, all of your information and data will move to the new phone via the SD card. Simply enter your SD card into the new phone and the data will transfer over.

Was this helpful? Yes | No | I need help

You will not need to transfer your contacts to your sd card in order for you to be able to have it on the new device. All you will need to do on the new device is enter your Gmailc account information into the next device to have your backed up contacts transferred over to the new device.

Was this helpful? Yes | No | I need help

How to i transfer music from my cell phone to the sd card?

I cant transfer music on my phone to the sd card in my phone

If you are transferring the movie from your computer then you will need to ensure that when you drag and click your music that you are releasing the music into the SD card folder rather than your internal memory on your device.

Was this helpful? Yes | No | I need help

Are the music files stored in your phone`s internal memory? If yes, and you are using an android smartphone, you can easily move the files using a file manager app from the Play Store. Get something like Es File Explorer, seen here:

Was this helpful? Yes | No | I need help


https://play.google.com/store/apps/details?id=com.estrongs.android.pop


Once installed, you can browse your phone`s internal storage for the files and copy/cut/paste them to your external sd card.

What if you have secured your phone with a password, and you still can't encrypt the sd card?

In the step: "If you don't secure your phone with a password, you will find that the Encrypt SD card menu does not enable you to select any files to encrypt. To be able to select any file on your SD card, you need to add a memorable six-character password to your device. " what if you have secured your phone with a password,and you still cant encrypt the sd card then what

Was this helpful? Yes | No | I need help

I have had this issue before because I had a pattern unlock rather than a password with 6 digits, take your password off and then re enter your password on your device so that you will now have the option to encrypt your SD card on your device.

Was this helpful? Yes | No | I need help

You can try the option of unmounting the SD card from your device then replacing to see if the option will present itself, this is the way I bypassed this error.

I have encrypted the SD Card on Galaxy S4, but still all the files are visible even though I entered the password after restart. Why? then what is does it mean encryption?

I have encrypted the SD Card on Galaxy S4, but still all the files are visible even though I entered the password after restart. Why? then what is does it mean encryption?

The encryption process means that no one will be bale to take any of your information off your SD card without the password to do so which will secure all your information with a password protected encryption. The files may be visible but will not be able to open up or be copied without the password.

Was this helpful? Yes | No | I need help

Samsung exhibit metro pcs how to encrpty it?

How do i encpty it ? it wont let me me do it on my phone

Howikis QnA. This section is not written yet. Want to join in? Click EDIT to write this answer.

what if you have secured your phone with a password,and you still cant encrypt the sd card then what

I believe that you are referring to phone lock like password or pattern since there is no other security that you can apply on the phone aside from the antivirus to protect your phone from viruses for Android devices. If you have a security lock on your Android phone like as mentioned, you should be able to encrypt your SD card now on your mobile phone. If in case that you still can't encrypt the mobile phone, you can simply do a factory reset on the phone to clear its problems and some other stuff. It is nearly impossible for you that you cannot encrypt the SD card once you enabled the phone's security settings.

Was this helpful? Yes | No | I need help

If in case that you cannot encrypt your SD card for some reason, you can simply download an application from your Google Playstore to have your files being encrypt and protect those confidential files. You can download an application called: Encryption Manager, this application works the same as using the direct feature to encrypt your phone's SD card files and any other stuff. Please note that this is not a free application just like most of the Apps in the Google Playstore for the full, which will require you a small fee to purchase the full app. For the Lite version of this app can only encrypt up to 5 files and the full version is unlimited.

Was this helpful? Yes | No | I need help

If you want to know more of the application, you may go to this link: https://play.google.com/store/apps/details?id=com.giraone.encmanlite

  • If you have any problems with any of these steps please post in the comments section below.

Comments

avatar

Anonymous user #1

230 days ago
Score 0+-
i perfomed the above steps and still i cannot encrypt sd card, encrypt option is still disabled.
avatar

Anonymous user #2

222 days ago
Score 0+-
what is the encryption level?? aes?
avatar

Anonymous user #3

198 days ago
Score 0+-
i had done all the process.....the mobile also shows that it is encrypted ................but when i open my sd card on my device......it open without asking for password
avatar

Anonymous user #4

184 days ago
Score 0+-
hi...i have encrypted data on my android mobile and after that when the data on SD card was not visible i used factory reset on my phone and now i can not see my data as it is there on SD card but not visible .....i know the password whatever i have given before going for factory reset.
tell me if i can again see those data using anyways
avatar

Anonymous user #5

152 days ago
Score 0+-
hi...i have encrypted data on my android mobile and after that when the data on SD card was not visible i used factory reset on my phone and now i can not see my data as it is there on SD card but not visible .....i know the password whatever i have given before going for factory reset.

tell me if i can again see those data using anyways
avatar

Anonymous user #6

144 days ago
Score 0+-
You need to RTFM. From the Tips and Warnings section above item 3 clearly states ...

Performing a factory reset on your phone will make the encrypted file on your SD card unusable.
avatar
Anonymous user #7
128 days ago
Score 0+-
I have encrypted the SD Card on Galaxy S4, but still all the files are visible even though I entered the password after restart. Why? then what is does it mean encryption?
avatar

Anonymous user #8

112 days ago
Score 0+-
In the step: "Tap on the "Security" button, then on "Encryption". Tap the "Encrypt external SD card" tab located at the top of this menu to begin the encryption process. You could also check out the encrypt device option which outlines the process of encrypting your phone and what it actually does to your phone." does not exist on lg
avatar

Anonymous user #9

108 days ago
Score 0+-
In the step: "If you don't secure your phone with a password, you will find that the Encrypt SD card menu does not enable you to select any files to encrypt. To be able to select any file on your SD card, you need to add a memorable six-character password to your device. " what if you have secured your phone with a password,and you still cant encrypt the sd card then what
avatar

Anonymous user #10

90 days ago
Score 0+-
In the step: "If you don’t secure your phone with a password, you will find that the Encrypt SD card menu does not enable you to select any files to encrypt. To be able to select any file on your SD card, you need to add a memorable six-character password to your device. " DESABLE ALL OPTIONS
avatar

Anonymous user #11

13 days ago
Score 0+-
Alright serious question..I have a HTC sv 1.(beats audio)...encrypted my sSD card.I can't view my pics or music in any way..Iwent bback and couldn't find where to type my pin in to view my SD card.I went to settings and unchecked the box to encrypt SD card but says I could unecrypt and will erease all data..I seriously don't get this..my phone is encrypted but its different all I do is type in password when I turn it on with the SD card I don'teven know where to type in
avatar

Anonymous user #11

13 days ago
Score 0+-
Serious answers email me or something or post a comment...email is
my baby's b day is april 19 I need to learn this asap
Add your comment
howikis welcomes all comments. If you do not want to be anonymous, register or log in. It is free.




Strongfire
Premier Author
8 Articles Started
90 Articles Edits
5,550 Points
Strongfire is a premier author with howikis. Strongfire has archived the level of "Sergeant" with 5,550 points. Strongfire has started 8 articles and made 90 article edits. 20,030 people have read Strongfire's article contributions.
Ask Strongfire
Strongfire: Hi, my name is Strongfire.
Strongfire: Can I help you with your problem about "Encrypt Files on Your SD Card Using Your Android Phone"?
 

Article Info

Categories : General Android Mobiles and Tablets | PL Check GREEN

Recent edits by: Ephraim, Robbi, Michael J.

Share this Article:

Thanks to all authors for creating a page that has been read 16,912 times.

x

Thank Our Volunteer Authors.

Give howik a +1.