Memory Card suddenly unmounts while transferring files - G2 and Desire Z Accessories

Here is the problem:
I recently purchased a 32gb memory card reformatted it then tried to transfer my files to the card but while transferring them the card suddenly un-mounts. After this happens I get a message on my phone that says blank card or unsupported file system. Tried to reformat but it doesnt work. I tried to format it in clockwork recovery no luck, tried with phone connected USB no luck.
Any suggestions?

Bad card? sd slot contacts? What brand of card? Will another device or computer read and/or format it?

I think it may be a bad card. It works until I try to transfer files or write to the card. I'm just going to ask for a refund and buy a better brand of card.

adrake400 said:
I think it may be a bad card. It works until I try to transfer files or write to the card. I'm just going to ask for a refund and buy a better brand of card.
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try it in another device/computer preferably, no point in getting another if it is the phone.

Tried it in my wifes mytouch slide and an other phone we have and had the same issue

adrake400 said:
Tried it in my wifes mytouch slide and an other phone we have and had the same issue
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Then try their card in yours, if it works then k.i.s.s. It's the card that's no good

I had a similar issue with a 16GB card a year or so ago. I put the 16 GB card into a MicroSD to USB adapter (not in a phone), and plugged directly into one of my computer's USB ports, and re-formatted the card. I have had no issues with my card since then.
Hope this helps!

Related

MicroSD slot...

I took out my microsd card from my old 8525 and put it in my fuze and it will not read it. I put it back in my 8525 and it reads it fine. I also use an adapter for my pc and windows reads it fine. Just got the phone today about 20 minutes ago. Could the microsd slot be bad? and YES I am putting it in the correct way. The SD cad is a 2GB kingston.
2GB SD cards are picky. I have a 2GB card in my camera that my laptop will only recognize about 50-75% of the time, although I've never had a problem with it in my camera nor with the card reader I have plugged into my other computer. Of course, it could be a defective slot in the phone, too. The only way to tell is to try with another card (preferably a different size).
microSD cards are cheap. I'd suggest getting a 4GB or 8GB card and seeing if the phone accepts that; if so, just use your pc to copy all the data from the old card onto your hard drive and then onto the new card. If not, you've still got a new card as well as evidence that the phone needs to be replaced.
wmm said:
2GB SD cards are picky. I have a 2GB card in my camera that my laptop will only recognize about 50-75% of the time, although I've never had a problem with it in my camera nor with the card reader I have plugged into my other computer. Of course, it could be a defective slot in the phone, too. The only way to tell is to try with another card (preferably a different size).
microSD cards are cheap. I'd suggest getting a 4GB or 8GB card and seeing if the phone accepts that; if so, just use your pc to copy all the data from the old card onto your hard drive and then onto the new card. If not, you've still got a new card as well as evidence that the phone needs to be replaced.
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Guess ill have to run to walmart and give one a try.
Actually I did a hrd reset and now it will read it fine. Guess its just typical windows BS.

32gb Micro SD card compatability

I have gone through three 32gb cards now and none seem to be working. I try to swap the contents of my 16gb card to the 32gb card and the data gets corrupted each time. The data on the 16gb card is fine and I can transfer it to my PC drive, thumb drive, and even a different 16gb sd card and view all the files with no problem. But everytime I try to transfer it to any of the 32gb cards the data gets corrupted and the transfer fails. I have formatted each card with the panasonic card format software (ver. 3) and it still doesnt work. I have tried different format options and I have even tried to format it with my EVO and still no go. Any suggestions would be appreciated.
Thanks,
The Xoom's SD card slot doesnt work on stock Android 3.0/3.1. If you rooted to get an OS with an operational card slot, it is possible that the root did not install correctly.
Didact74 said:
I have gone through three 32gb cards now and none seem to be working. I try to swap the contents of my 16gb card to the 32gb card and the data gets corrupted each time. The data on the 16gb card is fine and I can transfer it to my PC drive, thumb drive, and even a different 16gb sd card and view all the files with no problem. But everytime I try to transfer it to any of the 32gb cards the data gets corrupted and the transfer fails. I have formatted each card with the panasonic card format software (ver. 3) and it still doesnt work. I have tried different format options and I have even tried to format it with my EVO and still no go. Any suggestions would be appreciated.
Thanks,
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Trying to understand...you are saying that the file transfer has failed from 16gb to32gb when using PC to transfer...not a Xoom issue yet? Have you just put a few files on the 32gb card and checked it in the Xoom? It sounds like you've done everything right...are you sure the cards are good?
I am rooted and have been using the card slot for some time.
I have tried to transfer the files by several methods. PC -> Card, PC -> EVO, PC -> card reader, PC -> Xoom, and vise versa. Nothing worked. I have tried putting just a few files on and it seems to work, but when I try to put all the files (about 9gb's worth) the info starts to become corrupt. I suppose its possible that all three cards are bad, but I have to think the odds on that would have been pretty high. The first card was a class 10, the second and third cards were class 4.
Didact74 said:
I am rooted and have been using the card slot for some time.
I have tried to transfer the files by several methods. PC -> Card, PC -> EVO, PC -> card reader, PC -> Xoom, and vise versa. Nothing worked. I have tried putting just a few files on and it seems to work, but when I try to put all the files (about 9gb's worth) the info starts to become corrupt. I suppose its possible that all three cards are bad, but I have to think the odds on that would have been pretty high. The first card was a class 10, the second and third cards were class 4.
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I hope someone with experience with a 32gb card jumps on this...I've never used anything larger than 16gb. It just doesn't make sense-have you tried transfering smaller chunks of data at a time? Anyway, I hope you can resolve this...if you do, please share. Good luck!
It really does sound like faulty cards. Where are you getting them from? It's well known that sd cards bought from eBay or Amazon Marketplace are more than likely fake.
For example, I bought a 16GB card from a guy on eBay and was only able to transfer 2GB of data to it then the card corrupted. I later found out that people are re-badging smaller cards to look like bigger ones. They also spoof the size on the card itself so it reports as a larger card when plugged in but they only take up to their former capacity before corrupting.
All were bought from Ebay so that would make sense. Where do you suggest buying the card? My local chain stores do not carry anything larger than 16gb right now.
Yeah, hopefully you can get your money back for them. I did but it took a little nagging.
I buy mine from ebuyer.com but that's a UK site so if you're elsewhere maybe Amazon (direct from Amazon only tho as the Marketplace is just like eBay for fakes) or maybe Best Buy? Definitely go to a reputable dealer anyway.
Didact74 said:
All were bought from Ebay so that would make sense. Where do you suggest buying the card? My local chain stores do not carry anything larger than 16gb right now.
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I either buy mine locally, or NewEgg ONLY.
_ttp://www(.)newegg(.)com/Product/ProductList.aspx?Submit=ENE&N=100007962%20600006209%20600006235&IsNodeId=1&name=32GB
Hope this helps!
Are you sure your computer isn't putting the usb to sleep while it's copying?

[Q] 8gb Micro SD card not recognized

Hello. Recently just got a 8gb class 6 micro sd card for my HTC Desire (CDMA). When I put the card it it's not being picked up by the phone. Not giving me any kind of error message in the notification bar, just acts like no SD card is installed. My previous card was an 8gb class 2 card that came with the phone, so I know it can do high capacity. Threw the card in a card reader and re-formatted it FAT32, still nothing. Tried putting the card in a friends Samsung Galaxy and it picked up fine. Also my old card still works when I put it back in the phone, so I'm truly stumped here. The phone is rooted but Im not running any custom roms..
Well i think the problem in in your phone. Maby some dust on those golden pins or something you cound try another card to check if its the card or phone itself.
RyanJWZ said:
Well i think the problem in in your phone. Maby some dust on those golden pins or something you cound try another card to check if its the card or phone itself.
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My old card works fine in my phone, and the new card worked in a friends phone, and on my PC. Tried re-formatting (FAT32 and FAText) and naming the volume. For some reason my phone just won't pick it up. No error messages or anything, just acts like there is no micro sd card in it.

[HEADS UP]SanDisk Ultra 16gb MicroSD Class 10

Just thought I should let you all know about my recent experience with this microSD card.
The Part number is SDSDQY-016G-A11 or SDSDQY-016G-A11A
I bought one from my local Best Buy after finding the item was marked down from $49.99 to $17.99. At first, my initial thought was "Done!" I took it home, opened the package and began transferring everything from my 8gb card to this new 16gb class 10 card.
Now, here is where the problem starts. I do not know if I did not take the necessary prerequisites for this particular card, but, after about an hour of just basic copying of data to the new card, I was struck with a CRC error and the card forced ejected itself from the USB host. I removed the card and put it back in to see what happened and found a corrupted directory from the last thing the card was copying. I couldn't access it or delete it. I couldn't copy anything into the card either. I tried formatting, to which it would complete the operation with a "This card could not be formatted." message at the end. I tried downloading different partitioning software to delete the partition, format the unallocated space and create a new partition to which I was "then" greeted with a variety of "This card is locked/Failed Operation/Space cannot be formatted/Partition could not be created." I gave up. I went back to Best Buy and exchanged the card for a new one. I thought "F*** me right? I got lucky with a bad card."
Nope.
Same thing with the new card, except it happened within 5 minutes of copying anything onto the card. This time around, I decided that I am not going through all of that again and returned the card.
Again, I do not know if I took all the necessary prerequisites before handling the card, but, to my knowledge I do not think there could be anything.
Instead, I jumped over to Hhgregg and found a different model SanDisk 16gb microSD card. I was able to copying over everything over to that card the first time and without a problem.
Also, in case it's asked, the phone did pick up the card initially before anything was copied. After the problem's arose, the phone refused to mount the card at all.
So, if anyone was considering picking up this card, its up to you what you want to do. Just Beware.
I found that the SanDisk USB device/ other SanDisk Adapters was causing errors in the 15 or so misc cards I put through it. Were you using it? or was it in your phone?
I went with the 64GB SDXC and no issues since.
At first I used the supplied adapter which is when the first card gave out. The second card I used a different adapter. A USB based one and it still gave out but much faster. Initially I tried with the card in the phone, but it kept force ejecting itself from the USB host as soon as I started. I thought it was the cable at fault.
Sent from my Sensation using Tapatalk 2
I have the same problem i purchased 16gb ultra yesterday and today i m unable to format this card in NTFS system it formatted succesfully in fat32 bt the speed i get white transferring any file is jus 3.5-4 mbps olease help any solution for that??
I have a 7 months old SanDisk ultra 32gb and it's still very good. I have better speeds when copy inside the recovery than inside the rom.
Did you report it to Best Buy?

[Q] sd card woes with i535

im on my second s3 (first one screen shattered) which ive had for about 3 months now and since new i got a 32gb scandisk 10 sd card, everything was working fine till about a week agao then i started getting "sd card unexpectly unmounted" i would remove the card, reinstall, then would get the message " preparing sd card " then phone would show card but either say "blank card or unsupported files" then sometimes the phone wouldnt read that there was a card installed. i tried pressing mount sd card and nothing would happen.
now the strange thing i have a galaxy tab2 and the 32gb works great in that, so i tried formatting card with tab2, reinstalled iinto s3 and same problem. now i did take the 2gb card i had in my s3 and it works fine,the phone is rooted and have always ran Cleanrom or Wicked sensations roms. i did a loy of searchs but havent had much help on finding an answer.
somebody please help.
Bill
anyone?
I had the same problem, come to find out, it was a cheaply made sd card. Think I paid 10-15 bucks at most for a 32gb class 8 card. I bought a scandisc card and have been fine since.
And just for info.... I read online that others were having this same issue and that it was the card not seating in the slot very well. If you took your phone back to the store they would exchange it. I took it in, got a new phone, and the same thing happened (unrooted, rooted, romed, it didn't matter) Got a new card and it was fixed.
Sent from my PACmaned SCH-I535
Have you tried connecting it to your computer via sd adapter to see if files are there. If you cant read any files it may be a bad card but you can always format it while connected to the computer and see if that helps. If computer reads your files i would suggest you move files to computer, format, then try it on your phone and if it still doesnt work than maybe its the problem suggested above my post with it not seating correctly. Good luck

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