Questions tagged [external-sd]

For questions related to the external micro-SD card used by most Android devices to increase the amount of available storage. For the internal SD card, use 'internal-sd'. See the 'storage' tag wiki for a full overview of available storage-related tags.

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34
votes
1answer
31k views

How to decrypt Adopted Storage?

Using the SD card as Adopted Storage encrypts it. How can it be decrypted?
6
votes
1answer
5k views

How to bind mount a folder inside /sdcard with correct permissions?

I am using a Sony Xperia M4 Aqua. As is well known, the internal memory is rather small. Especially the Media directory of WhatsApp uses a lot of precious space, therefore I am trying to move it to ...
2
votes
1answer
3k views

How to save files to external SD card on a non-rooted Android?

I'm using the Terminal Emulator app on a non-rooted Android 5.0.2 phone. When moving files from a folder of the external SD card to another with: mv /storage/extSdCard/DCIM/Camera/* /storage/...
11
votes
1answer
6k views

How to stop apps writing to “Android” folder on the SD card?

I have a (seemingly) simple question to which I haven't found a clear answer to. My phone creates an "Android" folder on my SD card and I'm wondering if it could be moved into the phone's internal ...
4
votes
1answer
2k views

How to free Internal Storage by moving data or using symlink / bind-mount with Adoptable Storage?

Galaxy S5 running LineageOS 16 (Android 9). I'm having issues with running out of storage space, even though I have 128GB external SD card, merged with the internal storage. Is there a way to create ...
32
votes
5answers
166k views

Installing to SDCard by default

I would like to know whether there is a way to tell Android to install applications on the micro SD card by default instead of having to download applications to internal memory first and then having ...
17
votes
2answers
73k views

Data Recovery - How to Restore Deleted / Formatted Files on HD Micro SD Card

Background: I put in a friend's SD Card to format it because it was having problems. Then I put mine back in and I think my phone formatted my SD Card. I had a ton of pictures on there that are now ...
3
votes
1answer
2k views

What is the “u#_everybody” UID?

In (multi-user) Android there are UIDs like these: u0_everybody u10_everybody u11_everybody Those seem different to the usual uXX_aYY UIDs used for the applications. What is their purpose? Is this a ...
48
votes
6answers
272k views

Check and fix SD card errors within Android itself?

Sometimes my SD card gets "corrupted" and this leads to many read/write errors. Usually, connecting the SD card to the windows 7 and selecting the "Error Checking" (Right click the drive > Tools > ...
11
votes
1answer
31k views

How to decrypt the corrupt SD card formatted as internal storage?

So I'm on Marshmallow and have formatted my SD card as internal storage. Its filesystem got corrupt two weeks later for some reason. Plugging it to GParted, I see 16MB of FAT32 and the rest is an ...
8
votes
2answers
12k views

How can I make a symlink (or equivalent) inside /storage/emulated/0?

So, I have rooted my phone (GT-i9505 with android 5.0.1) and I would like to move my WhatsApp folder to my external SD card to save 3GB on internal storage. This is what I tried so far. EDIT: ...
32
votes
3answers
96k views

How does the “Format as internal storage” feature work in Android 6.0+?

How does the "Format as internal storage" feature work in Android 6.0+? See screenshot below: Screenshot (click to enlarge) Why is it the case that "this USB drive will only work in this device"? Is ...
38
votes
2answers
167k views

How to adopt SD card as internal storage on Samsung devices?

I recently upgraded to 6.0.1 Marshmallow on my Galaxy S5 and I would like to adopt an SD card as internal storage. However, there is no option to do this. When I format the SD card, there is no "...
21
votes
2answers
34k views

I want to split one MicroSD card into two parts: part adoptable storage, and part normal storage. How can I do this?

I don't want all my storage as adopted storage, so I was wondering how I can split it into 1 part adopted storage and 1 part normal file storage (what Android calls "portable storage").
26
votes
10answers
8k views

Other than portability, are there any other advantages (or disadvantages) to storing apps on external storage?

Are there any particular advantages/disadvantages to storing apps on the external storage of an Android device? As I have a Nexus S, I can't think of advantages for me as I can't remove the storage, ...
23
votes
2answers
35k views

SD card partitioning? why? how?

I am going to install cm7 and it seems to me that is 'good' to partition my SD card. I did some reading but I am not sure if ext partition will become accessible as mass storage when an Android phone ...
3
votes
5answers
52k views

Should I do the factory reset? If yes, what will I lose?

My HTC Desire S is working fine when I don't put my micro SD card in it (this card was free with the phone). But the phone keeps restarting every few minutes if I keep the memory card in it. By that, ...
45
votes
2answers
134k views

How to upgrade / swap SD card without losing data and installed apps?

I have 2GB Micro SD card in my Android and want to upgrade to 4GB. How can I achieve it without losing anything from my 2GB card? I mostly use this card to store images/music and most of the apps.
20
votes
2answers
9k views

How do I switch my Android device's SD card without causing problems?

I just got a new 32GB SD card for my Nexus One. On the old one I have a bunch of apps installed and store the data there because the internal memory doesn't handle it. So now I want to switch SD ...
5
votes
4answers
76k views

How to recover data from a damaged SD card?

I have an HTC Inspire. I have had my 8 GB SD Card for three years...needless to say, it has like 5000 pictures and hundreds of videos on it. It has a lot of music on it too, but I'm not worried ...
2
votes
1answer
822 views

Why root cannot access “.android_secure” directory on external SD card?

I have an Android 9 tablet, rooted by way of Magisk. It has an external SD card mounted as sdfat on /mnt/media_rw/1234-5678 which is mounted on four other mount points, all as type sdcardfs, with some ...
6
votes
2answers
31k views

Mount a folder from external sd as /data

How do I mount /mnt/sdcard/data as /data. Right now the /data has its own partition but it's too small (~500mb) and I would much rather give it more space than move apps and other things to my SD card....
9
votes
3answers
74k views

How to prevent Android from creating LOST.DIR on SD card?

After the phone restarts, there is a LOST.DIR folder created on the external SD card. Is it possible not to create this folder if nothing is lost?
8
votes
2answers
1k views

Is the class rating of my MicroSD card relevant?

Does Class 4 perform differently from Class 6, and so on, when it comes to Micro SD(HC) memory cards on smartphones? Samsung Galaxy S to be specific.
3
votes
1answer
1k views

How to bind-mount “data” and “obb” folders from external SD card in “/sdcard/Android”?

Can someone help me mount my Android/data and Android/obb in my internal storage from my portable storage? I'm on a Pie ROM. I found this: How to bind mount a folder inside /sdcard with correct ...
14
votes
1answer
24k views

How can I recover the files in LOST.DIR on my SD card, and what are they?

I've always had a LOST.DIR folder on my external SD card, which until now has been empty. Today my phone complained that my SD card was damaged and wouldn't mount it, so I pulled it out and looked at ...
14
votes
2answers
19k views

Is it possible to mount on a PC an SD card that has been encrypted by an Android Marshmallow device?

I have a Samsung Galaxy S5 duos with stock Android Marshmallow, and I'm considering encrypting my SD card to prevent access to its contents in case I lose my phone. The main reason of not doing this ...
6
votes
1answer
3k views

Decrypting microSD card on another Android device or desktop computer

I'm looking for a solution that would allow to encrypt external microSD card with the following conditions: external microSD card is not merged with the internal storage; encrypted external microSD ...
3
votes
2answers
3k views

Micro SD card physically damaged?

it seems to me that my sd card is damaged so I wiped/erased it from android few times but it did not help. Right now what happens is that if the card is present the phone freezes (not always) at the ...
2
votes
7answers
82k views

“SD card is damaged - You may have to reformat.” How do I fix this problem?

I had this before, formatted it and now it's happened again. I suspect it's the problem mentioned here but I don't understand how to apply the fix from that thread. I thought I had to download the ...
21
votes
3answers
5k views

How do I secure/encrypt SD card data transparent to apps?

Are there any off-the-shelf options for securing the contents of an SD card so that files written by apps writing to SD are encrypted? If so, what is the best option? I'm looking for something for ...
20
votes
5answers
29k views

Can I use ext4 on my SD card in a non-rooted phone?

I know that on a rooted phone, it's reasonably normal to create a small ext4 partition for App2SD to use, but I'm not asking about that case: I have a non-rooted HTC Desire running Froyo, and I'd ...
4
votes
3answers
5k views

Use sd card as internal storage and stop writing to internal memory for good

Smartphones seem to die after two years of usage, as if they knew that you just have paid the last instalment. The common reason seems to be the failure of internal memory. I'm desperately trying to ...
3
votes
2answers
2k views

How to create and use multiple partitions on external SD card with different filesystems (Ext4, exFAT, NTFS)?

I want to create 4 partitions on external MicroSDcard through ADB shell commands, not on Windows or Linux. Also want to show all partitions in Android GUI (SETTINGS > STORAGE > SDCARD) and make them ...
0
votes
2answers
142 views

“System” using 342GB storage?

I have a Samsung Galaxy S7 Edge in which I put a 400GB SanDisk micro-SD card to expand its storage space. Seems that didn't work though. The space is not available to me. And I can't really figure out ...
11
votes
2answers
4k views

What is the minimum MicroSD speed necessary to extend the storage of an Android phone?

I want to extended the storage of my Android phone be switching it to a MicroSD memory, as Android Marshmallow allows. What is the minimum speed I need to use to avoid impacting performance? I am ...
7
votes
1answer
4k views

Changing SD Card Just a Simple Copy & Paste

I'm migrating to a larger SD Card and I'm wondering if it is just a straightforward copy of the data from one card to the other in Windows? Specifically, can I just copy the card using Windows ...
7
votes
0answers
3k views

Fix a damaged microsd card? [duplicate]

Possible Duplicate: “SD card is damaged - You may have to reformat.” How do I fix this problem? I have a Sprint Kyocera Echo. I accidentally pulled out the micro-sdhc card when in use. When I ...
5
votes
1answer
12k views

How can I decrypt an encrypted SD card (HTC Evo 4G) on a different device?

I encrypted both my phone and SD card upon purchasing my HTC Evo 4g LTE. Recently the phone died (would get to the login screen and then reboot). After a factory reset the SD card shows up as ...
4
votes
1answer
520 views

When should I run a consistency check on my removable MicroSD card?

I own an Android device with a removable MicroSD card. The card uses either FAT32 or ExFAT technology. These are "non-journaling filesystem" technologies, so the data on the cards can become corrupted ...
2
votes
1answer
124 views

How to move 7GB ext4 partition on external SD card to 30GB partition on another SD card?

I had rooted my Android Lollipop 5.1.1 phone and installed Link2SD and linked installed apps on ext4 7GB 2nd partition of external SD card of 16GB size . The apps installed occupied 6.5GB space and I ...
1
vote
2answers
7k views

How to fix a damaged sd card? [duplicate]

Possible Duplicate: “SD card is damaged - You may have to reformat.” How do I fix this problem? I made my SD card available as mass storage, copied one file from the SD card, unmounted the card ...
0
votes
1answer
9k views

Receiving an EACCESS Permission denied error when copying files to ExtSDCard

My ExtSDCard has begun to act funny over the past few days. I have downloaded and used a few file managers in the past, and my current favorite is ES File Manager. However, over the past few days, I ...
11
votes
6answers
49k views

“Couldn't move app. Not enough storage space.” I have factory reset my phone, inserted & formated a new 64GB MicroSD Card

As my wife bought an Android Phone last year, she has been using an 8GB MicroSD card, recently she wanted to increase more storage space due to having more music and photograph files. As such, I ...
13
votes
1answer
3k views

How does Samsung implement SD card encryption?

My android device just stopped working. I still have my SD card, but all data in it is encrypted. Encryption has been performed at file level, so I have the directory structure and filenames in plain ...
7
votes
2answers
51k views

Using SD card as internal storage and migrate date

I read this question, but I want to update the question. Now with Android 6.0 we have the option to format the SD card as internal storage, and that's what I did. I also clicked that "Migrate data" ...
2
votes
4answers
8k views

Move apps to internal SD card

My phone has 3 storage spaces available: Internal storage - Internal storage for the OS and non-movable apps (1GB) Phone storage - Integrated SD card (~1GB) SD card - Removable SD card When I got to ...
6
votes
1answer
7k views

Using an external SDcard with KitKat?

On a Samsung Galaxy S4 Google Play Edition running 4.4 and non-rooted (I'd prefer not to root a device used for professional development purposes) Having stored some ebooks on my external SDcard, I ...
2
votes
2answers
2k views

When app is moved to SD card, where is the app data stored on SD card?

My phone (Sony E4g, running Android 4.4.4) offers the possibility of moving some of the installed apps partially onto the (removable) SD-card. I use this feature regularly, and -in theory- quite a big ...
9
votes
4answers
28k views

How can I mount an ext4-formatted SD card with correct permissions (with root)?

I see some mentions here of creating an ext4-formatted SD card, but no guide. This closely-related question suggests there is no way to do it, but my question differs in that my phone is specifically ...