First of all, sorry for creating another post about this SD Card issue, but I'm still in the dark.
I was using a Sandisk 32GB card [image attached] when the * SD CARD UNEXPECTEDLY UNMOUNTED* messages started showing up.
After a while I lost all my data on the cards, and the card was rendered useless, that is to say that, my PC would not detect it ( using the SD Card adapter) and neither would my XZ.
A few hundred in and outs with the card into the pc and xz and somehow my phone detected the card, I then formatted the card and gained usability of it once again.
It still sends me the unmount message sometimes, even though I have no information on it now.
Questions
1. Is it the SD Card itself?
2. Which SD Cards provide a worry free experience, as per your experiences.
3. Any other information pertaining to this topic would be welcome.
Thank You.
Checkout my bootanimation in the themes forum, if you would like.
Related
Help,
After i flashed my KAISER i have a problem. The sd card is not recognised anymore. Is there a solution for this problem?
I hope so, otherwise i have a brick
Storage card problem
I always used a 4 gig card, just tried an 512 mb card, and that one was recognised. Strange isn't it?
First, which method did you use to flash your new ROM?
If you used the USB method to flash your new ROM, did you remove your SD card during the flash process?
If you used the SD card method to flash your new ROM, did you do a hard reset with your SD card inserted?
Second, do you have an SD card reader for your computer? I would probably try to verify that the file system and data are intact on your SD card. If you have an SD card reader, you can also use it to reformat your card.
If none of this is helpful, provide some more information to fill in the gap between your microSD card working properly and not showing up on your phone.
Re
I flashed to TPCV5.1 full today. No sd in my phone.
My cars reader in the computer doesn't recognise the sd card either.
Strange thing is , when i use an other 4 gig sd card, the phone still doesn't recognise it, my card reader on my computer does, so why not on my phone.
I had a 2 gig sd card, and put all the data again on it, and it's working.
Stilli have a problem that my phone won't recognise a 4 gig sd card.
So far my story.
Does seem odd. What file system is your 4GB card formatted with? If it shows up as "RAW" or anything, I would definately format it to FAT32.
Edit: I was referring to your "other" 4GB card. I don't think I have any advice for the original one.
I have AT&T Tilt with Sakajati's HyperDragon IV Windows Mobile 6.1 OS ROM, I also have this 8 GB micro SD card, which has around 3.5 GB of data, but for some reason I am not able to write on it any more. When ever I tried to format it I get this message which says " The card is write protected" I don't remember putting any password or anything. I can read data from that card on any computer or phone, but can write anymore data on the card. I can't delete anything from the card either.
Can someone suggest what could be wrong with the card and how can I unlock it?
I have tried low level format also, the format completes without any error, but when see in file explorer all the files are still there. If I try to format from SD formatter, I get error "The memory card is write protected", windows format doesn't give any error, just runs and in the end says "Windows can't comeplte the format". Card is working file and have no problem in reading the data it has, just can't write new one ot delete old one.
This is very weird problem... any help/comment is good.
Not sure if this will help....
I've had very similar issues over time...
Because of high TomTom & Music Use.
Both are loaded and work off my SD Card (6 GB worth)
What I finally found that worked for me, was to get a 2nd card and backing up my SD card to my Desktop PC, so later I could transfer to the 2nd SD Card when needed.
Then I do a Complete Format [Full FAT32 Format] of the old SD Card, via the Mini SD adapter on my Desktop PC.
I found that formating within the phone doesn't always work...
If this is not the case I can think of 2 other reasons for potential problems..
~Some ROM's require the removal of SIM & SD Cards when installing?
~If you were using an adapter formating the SD Card and it was not set to write mode?
Best of Luck!
JAC,
Thanks for your reply, but I have already tried FAT32 formatting using micro sd card, but as I said before, but it errored out.I even tried low level format, but didn't work. There is no locking swithc or anythign in micro SD card, not sure how the data can be locked. If it was ecrypted I was not able to read data on other devices. So what happened? Any help!!!
Like everything else, sometimes things just wear out, break or are just low quality to begin with. If you can read it on other devices, then transfer it and get a new card.
There is also a trick used by nefarious suppliers that takes a 4GB (or any size chip) and format it in a way that it appears as a larger chip. Then when you go to write to it the whole thing goes crazy.
This is why I recommend using reputable resellers and buying good quality Name Brand Chips, Like Sandisk or Kingston.
May I know anybody face "Blank SD Card or Unsupported Filesystem" problems with LG Optimus Black or not?
I'm using Kingmax 16GB class4, and I already faced 3 times of this problem, I asked for exchange of the sd card everytime when the sd card blank, so this is the 3rd sd card that I exchange for warranty from the shop, but after one week the same problem occurs again.
Everytime when this problems occur, I can't either format the sd card with the phone or computer, even I use card reader plug in to pc but no response form the computer (not pop up any message and the card reader drive letter not show out also), and I even try to format the sd card with camera but it gives me the message 'memory card error'.
I downloaded hp tool, sd formater but no luck to format the sd card also.
Sorry for my bad english, because I'm new in android, and I did google then result with a lot of such problems also, so hope that any expert will come with a solution, before I'm going to buy a new others brand sd card, just wan to clarify that is it the SD card defect problems or because the is the problems form android?
ROM using is NOVA v3.1.
I experiencing a very annoying problem with my external SD card.
It seems I am not the only one: http://talk.sonymobile.com/t5/Xperia-Z1-Z1s/Z1-destroy-files-on-SD-card/td-p/418011
Basically I loose random data when I store them on external SD card.
Many random data: let's say about 30-40% of what I stored.
This happens:
* if I copy data from internal memory to external direcly with the phone
* if I copy data from the PC to external card using USB connection while the card is in the phone
* even if I copy data onto the card and THEN insert it into the phone
The SD card is a brand new Samsung Class 10 64GB and I tried also with an old 32GB Sandisk with the same result.
I formatted the card either exFAT or FAT32 and in both cases I can fill it without loosing a single byte with the PC.
I am on .157 stock firmware (only rooted to use Titanium Backup and a few tools) but I had the same problem with .133.
Any possible solution in your expert opionions? It is really frustrating to have only 11GB storage in such a great phone!!!
Got three guesses
It does not correctly unmount the card when connecting the phone to the PC in Mass Storage mode
Kernel Bug. On exFat I would expect that, not on fat32. Can be ruled out if it does not happen with custom roms
Voltage on the SD Card suddently drops for some hardware design reason. Should happen on all ROM's
Sounds like some testing is needed? For example #2 is easy to test when someone with the problem flashes a custom rom with and tests the same sd card again.
I realized that after taking some photos, the pictures would disappear once I did a reboot of the phone. Also, certain apps installed to the microSD would disappear after some time. I deleted everything using My Files (default file explorer) program. But once, I rebooted, everything is back like the microSD card is in read only mode.
Has anyone experienced a situation like mine and what could be a solution to fix this issue?
Thanks!
Did you try sd card fix on playstore
BAD ASS NOTE 4
Looks like I need root access in order to have the SD card fix.
You most likely have a dead SD card. Try formatting your SD on a computer. I had the same problem on my 64gb SanDisk. The SanDisk SD cards are known to have this problem. You can contact SanDisk and they'll provide you with information on how you can get a free replacement.