Micro-SD turned to read-only by itself - Xperia Z2 Q&A, Help & Troubleshooting

Hi!
I have this weird issue where my 64gb micro-sd card from sandisk turned to a read only format. I was just transferring some music to my phone when I noticed that the transfer speed got very low. I stopped the transfer and tried again later but that didn't work at all. I then tried to copy the music to the internal memory that worked just fine but when I tried to transfer from the internal to the external with the help of the file manager I got "Read-only storage error".
I have tried unmounting/remounting the card back, restarting the device and I have also tried changing MTP to MTC (?) under x-peria connection-usb. One thing that really confuses me is that in this mode I can write and delete content but when I use my phone those added/deleted content wont show up at all and either in the file manager or when I try to connect again.
I saw that some people have fixed it by go into properties and tools and press check now when the SD card is connected to the computer but that did not solve the issue. My phone is a rooted D6503 with android version 5.0.2

Hi,
As far as i know, MTP should allow you to read and write.
Have you tried formatting your SD card on a PC ?

FWIW... Me, too. Was good for a year, then I tried to replace the 64GB with a 128GB. The latter was read-only, do I switched back and now it's also read-only.
LP 5.1.1, rooted with dual recovery. SDFIX installed.

Related

[Q] Problem with SD when connecting to PC - cannot copy files

First of all let me say hello to everybody on this forum. (Hello!)
My problem is the following: I have recently bought a Galaxy ACE (Gingerbread 2.3.3). Everything seems to work fine, except when I try to use the phone as a USB mass storage device. I'm using Windows XP, which correctly detects the SD card and lets me access the files on it, but does not let copy files to it. Instead it just shows me that the SD card is full, which isn't true, as the card is new and files on it have a total amount of about 300KB.
Some additional info: tried formating the SD card from the phone, tried removing it and even the battery o).
Any thoughts?
Tried formatting it through Windows Explorer?
What about a partitioner?
I'm running Linux, and GParted has never disappointed me.
If that doesn't work, then seems like it's a problem from the SD Card.
Thank you! That did the trick.

External card problem

Hey guys, I'm gonna try to explain this in most detail. Yesterday spontaneously my External MicroSD card couldn't be detected by my phone(Vibrant SGH-T959). First I thought a simple reboot would work although it failed. Second I have tried unmounting the SD card, and putting it back in and also didn't work. I decided to switch from my JellyBean 4.1.1 ROM back to Schimera v2.2 ICS. I thought the rom was causing the problem, although the problem continued on ICS. I have tried turning my phone off, taking the SD card and all of those combinations and none of them worked. I tried turning on and off USB debugging mode which didn't fix the problem either. I tried using the Computer Management to see if it detected at least my SD card and it didn't. The only way my SD card was actually red when I used a MicroSD adapter. I formatted the card from there and tried all of the solutions again and nothing worked aswell. So now I know that the SD card is working fine but just none being detected by phone or through the USB cable. So I decided to go into my settings > storage to find that my internal storage is only 1.85GB, my model is the 16GB version and I checked previously before. As I scroll down I realize there is something called USB Storage right underneath it and it says 12.67GB which is supposed to be the amount for the Internal SD card. This part is why I'm horribly confused. Also underneath that there is the SD Card and it only displays one button which says Mount SD Card which is disabled when I put the SD card in or out. I tried the option on top for Erase SD Card and it didn't work either. I looked through quite a few threads on this forum trying the ways I mentioned in this thread and they didn't work. Any help is highly appreciated. Thank you ​
*NEW* I just installed DoubleTwist from the android Play market and when I went into settings and tapped on storage this is what came up: Internal (0.0GB) Memory Card (12.8GB) For one, my phone has 16GB internal storage, My memory card is only 8 GB. *NEW*
*NEW TEST* I tried putting my microSD card into my sister device and it worked on hers, I tried putting her SD card into my vibrant and it didn't read it either!*NEW TEST*
Your 1.85 is the part of your 16gb Vibrant that us partitioned for apps. The 12.67gb is your internal SD. And your other setting should be your external SD or emmc card.
When you say you can't see your external are you looking at external and it isn't showing anything with a file explorer? Try looking in your emmc folder. Have you tried another card?
LusterGFX
Woodrube said:
Your 1.85 is the part of your 16gb Vibrant that us partitioned for apps. The 12.67gb is your internal SD. And your other setting should be your external SD or emmc card.
When you say you can't see your external are you looking at external and it isn't showing anything with a file explorer? Try looking in your emmc folder. Have you tried another card?
Click to expand...
Click to collapse
Thanks for clearing that up for me, and I can't access my card in the file explorer either. I don't have an EMMC folder and I tried going into recovery to "mount emmc" but it just gave me an error. Also I did not try another card because I don't have one lying around.. Plus when I rebooted my phone in the notification menu it says Checking SD card for errors and then it disappears. There is no message once that one leaves.
-LusterGFX

[Q] Malfunctioning microSD card after unsafe USB Eject from PC.

So I just got a 64GB Samsung EVO microSD for my HTC One M8. I installed it, and plugged my phone into my pc to transfer some music onto it.
I started by moving the music off the device storage onto the card through windows explorer, and it seemed to be transferring fine. It was taking a while as I had about 7Gb of music on the device already. Then like an idiot I unplugged the phone from the new dock I just got and was trying to get to work with my phone cases, while the files were still transferring.
Now, it won't let me paste anything to the SD card or device storage. Dragging files across to the SD card or device just freezes the folder icon where I dropped it. I am using clover as a windows explorer augment, if that makes any difference. But it doesn't look like I can transfer anything to the SD card from my phone either, as I just tried moving the music across with ES file explorer, and it came up with an error about needing a root to write to SD.
I have tried formatting the microSD from the phone, uninstalling the pc drivers for the phone and letting it reinstall them. Tried removing the card then replacing it, and restarting the phone. I have tried using SnapPea to transfer files across, all to no avail. Strangely, SnapPea and ES File Explorer are listing two SD cards, the first being identical to the files on the device storage, and the second being the actual SD.
I have no idea what is going on. I don't have a card reader to try formatting the card without the phone involved, but it seems like ejecting the phone erroneously has messed up the device storage as well seeing as I can't transfer files to either from my PC now.

Access SD-Card (formatted as internal storage) via USB or Filebrowser App?

Hi P9000 users!
I had now time to test some stuff with my P9000. One question: I inserted a Sandisk 128 GB SDXC Card (UHS) and formatted as internal Storage (want to move apps). Worked fine for the Phone and i was able to move apps to the SD. But after connecting Phone to USB (via MTP & unlocked phone) it only shows 32 GB internal SD. Also via File Explorer app on the phone i cannot find the external SD or mountpoint....
Anyone with same issue? I also changed connection-type to USB and then my OS (Win 10) does not open phone file system at all.
thx and br
Ausdroid
Arangato said:
Hi P9000 users!
I had now time to test some stuff with my P9000. One question: I inserted a Sandisk 128 GB SDXC Card (UHS) and formatted as internal Storage (want to move apps). Worked fine for the Phone and i was able to move apps to the SD. But after connecting Phone to USB (via MTP & unlocked phone) it only shows 32 GB internal SD. Also via File Explorer app on the phone i cannot find the external SD or mountpoint....
Anyone with same issue? I also changed connection-type to USB and then my OS (Win 10) does not open phone file system at all.
thx and br
Ausdroid
Click to expand...
Click to collapse
We did an article about the SD card memory management in Marshmallow a while ago on the XDA portal that explains this, I'd suggest googling for it as I can't remember the title.
Edit: Something to do with the SD card being formatted as Ext4 (linux file system standard these days) and Windows not supporting Ext4 filesystems.
Thx for reply, so i am afraid its related to Android 6 default behaviour. So if SD is formatted as internal storage you cannot access via USB from PC or managing files on it via file browser app? Thats really disappointing for me since it then switches SD card to enhanced app storage only, useless for image, videos, music etc. Of course i can format as portable SD, but then no movement of apps are possible (via root its maybe the only option).
In SD portable mode, i also had issue that SD cards randomly disconnects and one time it even needed to be reformatted. Have read about that in another thread, that this is related to physical sd mount... will see to fix this with some tape :/ (gives me not a good feeling here)
Arangato said:
Thx for reply, so i am afraid its related to Android 6 default behaviour. So if SD is formatted as internal storage you cannot access via USB from PC or managing files on it via file browser app? Thats really disappointing for me since it then switches SD card to enhanced app storage only, useless for image, videos, music etc. Of course i can format as portable SD, but then no movement of apps are possible (via root its maybe the only option).
In SD portable mode, i also had issue that SD cards randomly disconnects and one time it even needed to be reformatted. Have read about that in another thread, that this is related to physical sd mount... will see to fix this with some tape :/ (gives me not a good feeling here)
Click to expand...
Click to collapse
Update: checked some forums and blogs, seems not to be android 6 default behavior that you completely cannot access the files on adopted SD-card anymore. after adopting as internal storage... anyone could also reproduce this? I will try doing factory reset with SD-Card inserted..

Adoptable Storage went wrong, issues trying to revert

Greetings and Salutations,
I have a Samsung Galaxy J7 running the stock ROM and bootloader, Android 6.0.1, Kernel 3.10.49-9058927, with 16GB internal storage, and a 128GB U3 microSD card (not 100% sure of SD card speed, its above class 10), the phone is the 2016 version (subtle changes from the 2015 apparently) and has not yet been rooted.
I tried to enable adoptable storage to get a couple of apps to run better, but I want to revert back and seek a different solution, namely rooting and using Link2SD.
I tried the standard method of adoptable storage, and the option was not present in the storage screen on my phone. I tried using adb, and got timeout messages on the sm partition disk:179,64 private command. (Enabled USB debugging, accepted connections, installed samsung drivers, adb server daemon and shell all started successfully). Eventually it showed the sd card as corrupt. I popped it out of the phone, and deleted the partition on my computer, leaving raw, unformatted space on the card. I reinstalled the sd card in the phone, and the format as internal option was now present. I hit that, let it run and tried to migrate data afterward. Migrating always failed between 30 and 45%, and it showed me at 15.92GB or more out of 16GB used. I decided to revert back. I reformatted the sd card as portable in the phone, and it corrupted again. I did the same process, but elected to format as fat32 on my computer. Reinserting the sd card, it asked to format, so I did, as portable. The sd card appears to be back to normal, but I'm still at almost 16GB used on the phone. I tried to delete some music files that I have on the SD card as well, and they won't delete from the internal memory. It always says "could not delete" or "Delete operation failed". I have used the built in file manager, ES file explorer, and I believe I tried on my computer last night (it was getting late, but I remember at least trying). All fail to delete the files. I'm down to very few apps, none can be moved to the SD card, and I can't move much data otherwise. I harbor a suspicion that some hidden files are present on the internal memory, but I could be paranoid. I'm hoping to avoid a factory reset, but I fear that's the only option. I have a backup of the sd card, but not the phone's internals beyond what google saves in the cloud. I'm open to suggestions, and thanks in advance.
~Nick

Categories

Resources