Develop Bugs

Desire SD read-only problem

I've had a strange problem, even after reboot my Desire couln't mount sdcard with write access.
Because all my apps are stored on sd-ext, i need the card to be mounted with full permissions and also the icon on the status bar was annoying.
I've read a lot about read-only sd card problem, but tried the simplest thing:
- boot in recovery and connect via usb OR connect your sd card through card reader
on pc:
- select new drive, that appeared
- open regular windows scandisc, check all available repairs and run scandisc
Most likely it find some disc structure errors and will repair it.
After done, your phone should mount the sd card with write acces.
Hope this helps somebody!

Internal Storage of Epic 4G Touch?

I am using CM10 alpha5.3. I have a 32GB MicroSD card installed on my Epic4G Touch. However, if I turned on USB storage, I noticed two additional drives: one is 32G (of course it is my MicroSD), the other is 16GB. Does that mean, the Epic4G Touch has a built-in storage? My questions are:
1) If I use app2sd, what storage device will be used by default, 32GB or 16GB?
2) Can I format the internal 16GB drive?
3) I installed both ES File Manager & Astro File Manager in Android. However, ES File Manager does not recognize 32GB card. It only recognizes 16GB card as external SD... Astro File Manager recognizes both drives.
4) Because my Epic4GTouch is an used phone. I notice there are some pictures from the previous owner on the 16GB storage (or maybe some other personal things). Is there a quick way to restore all settings and remove the user data? I installed CM10 alpha5.3 by Recovery. However, I could still see the pictures from the previous owner
Thanks.

I'm far from an expert but I do believe I'm correct on these answers: 1. The 16gb card will be used by default until you change it in the settings. 2. You should be able to format the internal storage under the advanced settings in recovery. 3. I don't think that a workaround has been figured out yet to recognize the 32gb sd card. 4. I'm not 100% on this but if you format the internal storage that will take care of the previous user data, but idk if the settings can be saved...

If you're using a file manager make sure you're looking for external_sd folder. It should be in the folder labeled. Sdcard
Sent from my SPH-D710 using xda app-developers app

ctzw said:
I am using CM10 alpha5.3. I have a 32GB MicroSD card installed on my Epic4G Touch. However, if I turned on USB storage, I noticed two additional drives: one is 32G (of course it is my MicroSD), the other is 16GB. Does that mean, the Epic4G Touch has a built-in storage? My questions are:
1) If I use app2sd, what storage device will be used by default, 32GB or 16GB?
2) Can I format the internal 16GB drive?
3) I installed both ES File Manager & Astro File Manager in Android. However, ES File Manager does not recognize 32GB card. It only recognizes 16GB card as external SD... Astro File Manager recognizes both drives.
4) Because my Epic4GTouch is an used phone. I notice there are some pictures from the previous owner on the 16GB storage (or maybe some other personal things). Is there a quick way to restore all settings and remove the user data? I installed CM10 alpha5.3 by Recovery. However, I could still see the pictures from the previous owner
Thanks.
Click to expand...
Click to collapse
1) apps2sd defaults to the storage chosen in settings>storage>menu by default it is the internal storage(16gb, which is broken into 2gb system, 2gb apps, 12gb miscellaneous (photos, apps2sd, downloads etc) ) to change it, in the storage menu choose external_SD and reboot.
2)yes you can format internal from settings>storage, make sure in the menu you choose internal and reboot first or it will format your card, alternatively you can unmount and remove your micro SD first to be sure.
3) in ES you want to go to settings, and look for the option "up to root" this will take you to the main location when you press the back key where you will find folders for data, system etc. In that menu you can locate internal and external SD, may be labeled SD card and emmc, SD card0 and SD card01, SD card and external_SD or emmc and external SD
4)just use the format option in settings>storage to erase the user data on internal and factory reset to return the ROM to stock with no user data on inlcluded system apps and settings. Alternatively if you have a safe recovery installed you can factory reset/wipe data to wipe the ROM of user data and apps and use the format internal storage option to wipe the internal SD.
We are legion, for we are many.
Sent from the DarkSide of the GalaXy with a MEK device

[Q] Unable to mount encrypted external microSD [SOLVED]

Hello,
I´m on a stock ROM, that I have only rooted. Nothing else is done to the phone.
I have been using Android´s built in encryption for both internal and external memory cards,without any issues, since a few months.
When I woke up this morning and started my phone (the battery had died) I couldn´t mount the encrypted external microSD card. I got an error stating that the memory card couldn´t be mounted because it needs at least 1 MB of free storage.
Before I went to bed I started a torrent download on the phone to the external memory card. Apparently that must have filled the whole memory card (I had only 2GB left of free space) and then the battery must have died.
So, the error message says I need to remove some files to "encrypt" (mount) the memory card How do I remove files from the memory card if I can´t mount it? Can I mount the encrypted memory card on a PC with a card reader?
I´m NOT interested in formatting the card since I have invaluable material on the memory card. The most important issue for me is to not loose my data.
Please help me if you have any insight into this problem.
Details: Android 4.1.1
N7100XXALJ2
Kernel version
3.0.31-310953
Build number:
JRO033CN7100XXALJ3

Re: [Q] Unable to mount encrypted external microSD
You rooted?
If yes then try aroma file manager or twrp.
If not try card reader option as well.
Sent from my GT-N7100

Hi,
I am rooted yes. But I have the stock recovery manager as far as I know.
I couldn't find any "Aroma file manager" and don't know what TWRP is. I searched the play store for twrp and found different recovery managers.
Could you be more specific? My problem is that the card won't mount since the system states that it requires at least 1MB free memory on the card. The same card I cannot mount. So as I see it I'm in a catch 22.
Has anyone any knowledge of how to mount a encrypted memory card on a PC? What OS should I use, any particular software?
Thanks...

Ok, I tried using a memory card reader on a windows PC.
The files didn´t look encrypted at all. This is VERY weird. Either the files are individually encrypted or something or they weren´t encrypted at all
I could see all files, their names and the file sizes I removed about a GigaByte of crap and inserted it into my phone again
The phone mounted the memory card without any problems.
So this was actually a non-issue.
Problem solved!

-Android Freak- said:
Ok, I tried using a memory card reader on a windows PC.
The files didn´t look encrypted at all. This is VERY weird. Either the files are individually encrypted or something or they weren´t encrypted at all
I could see all files, their names and the file sizes I removed about a GigaByte of crap and inserted it into my phone again
The phone mounted the memory card without any problems.
So this was actually a non-issue.
Problem solved!
Click to expand...
Click to collapse
My experience is that files are individually encrypted. You can navidate the directory structure and see all files but cannot open them.

SD card error: "Cannot move due to unknown reason"

I am using a new SanDisk 32GB card and software version V20H. I downloaded some MP3 files using uTorrent. However, if I select to save the files to the SD card directly, uTorrent gives an error "cannot write to disk" after downloading 10-15%. But when I choose to save to the internal memory, everything downloads fine. So I downloaded them to the internal storage and used the File Manager app to transfer the files from the internal storage to the SD card. However, even that fails after 10-15%. What's going wrong? The card is 100% fine as I can install apps and save pics/videos to it.

I had a similar problem with a Samsung 32GB card - transferring a large file (~1GB) directly to the card using wifi file sharing would fail at some random point, but the same transfer to the internal memory always worked. Copying the file from internal to external SD card also worked. When I switched to another card (Samsung 64GB) the direct file transfer problem disappeared.

drhex said:
Copying the file from internal to external SD card also worked.
Click to expand...
Click to collapse
In my case even internal -> external is failing. The files are a collection of small mp3 music files. I don't even have a clue to what's going wrong!

Safest Route to File Recovery on Encrypted SD Card

VZW Galaxy Note 4, SM-N910V.05, Android Version 5.1.1, Kernel 3.10.40
Phone and Ext SD Card (64 gb) Encrypted
Problem: Accidentally deleted 5 mp4 files from ext SD. Have been vigilant about not writing data to card.
Solutions Explored: 1) Droid Apps 2) PC programs
Tried numerous apps and programs but they are going to require me to root the droid as they aren't turning up the goods.. I'm in the middle of a backup of internal and external storage, which will take a whole day, plus ---- in case I have to give in to the root option. I've done jailbreaks and roots before, successfully, but have no desire to run that risk. I like to have a vague idea of what I am doing so resist one-click routes but am willing to go in that direction if others here might assure me of just the right solution.
Solution Considered: Decrypting SD card then mounting via usb and running recovery programs, which don't otherwise recognize the phone (internal or external storage) even in the usb mass storage mode (PC recognizes all phone storage for file management just not recovery programs/apps). Would decryption overwrite crucial data (file content of deleted files) or only higher levels?

Update: Ext SD Card was NOT encrypted
I unmounted ext sd card. Connected to PC via usb card reader.
The phone indicated that the card was encrypted but it was not. I see earlier threads here where this happenned in kit-kat and jellybean. Now, add lollipop.
What gives?

Galaxy Tab S ext sd card not encrypted
Device says the card is encrypted. I checked via card reader because of experience with phone. Same deal. Not just file names and metadata but file contents are recognized. NO encryption. Does the unmount make it readable? What's going on?