Database Users

Blank External SD card

Hi there.
I have a 4GB sd card for my SGS SC-02b. Whenever i insert it into the phone the message at the notification area appears saying "sd blank or has unsupported file system". I tried formatting it and tried to mount it but its not working, i m not getting any error message while mounting or formatting, its just not working. I tried reinserting the sd card but still the same.
Looking for some kind suggestions
Sent from my SC-02B using XDA App

Is your sdcard locked by that little plastic knob on your card?

what files system are you formatting with recommend you use this app to format externally in your computer with a card reader

lgkahn said:
what files system are you formatting with recommend you use this app to format externally in your computer with a card reader
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Click to collapse
thanks for the tip, its working great now

Well, its not working again. It was working for a while, then i had to root my SGS so i removed SD card, rooted my SGS and then reinserted Sd card, now its saying Damaged SD card you have to format it, when i format it, no error message appears and nothing happens and notification area is still saying Damaged SD card.
Any suggestions??

What brand is it, dont tell me its a unbranded one, or a cheap ebay one, it could be a fake one, use you pc to format it fat or use the sd formatter, when you put it into the phone, unmount it then format again using the phone before use.
I have a 32gb adata class 2, 32gb lexar class 10, and many 8gb and 16gb from kingston, toshiba and sandisk in class 2 to class 6, all works.

Connect phone with USB cable in mass storage mode .
Format the SD card then run scandisk/error checking on the card .
jje

JJEgan said:
Connect phone with USB cable in mass storage mode .
Format the SD card then run scandisk/error checking on the card .
jje
Click to expand...
Click to collapse
No its not working even after formatting.
Sent from my SC-02B using XDA App

Got myself a new Sd card and its working great for now.
Sent from my SC-02B using XDA App

【Urgent】SD card become read only under android

Urgent!!!
I don't know if this is a bug or not. I used to copy files by selecting the disk drive mode. After that I will safely remove the device under windows before disconnecting the usb cable.
The problem is sometimes after copying files to sdcard, the SD card will become read only under android. For example I cannot copy or create files using file explorer. When using camera app it says "Unable to save file to SD card due to insufficient file permissions". When using album it says "SD card unmounted or not present".
After the problem occurs I cannot access the SD card via disk drive mode anymore, unless I physically removed and reinsert back the SD card.
The strange thing is I can still access the SD card in PC via card reader with no problem. I can also view the existing files in the SD card under android (eg opening .apk in SD card)
I tried flashing the ROM for 2 times and with a different SD card. Also I formatted the SD using Panasonic SD formatter and partitioned properly. The problem still appear after several access under disk drive mode. Million thanks!!!

I've noticed the same thing in the DL DesireZ v3.3 nand ROM...
But now since I've switched to skink_Clean_Desire_v1.0 I don't have the problem any more...
No problem solver I know... but just to confirm the issue!
It was also read-only when I had disk drive mode chosen and connected to my win xp pc!
so when I deleted files over the computer they still existed...
I always remove the sd card securely!...
hope this helps a little bit!

Memory cards get weak after awhile...Had d same issue with a Memory card...it works well on WinMo but messes up just as u described in android after a format n a few read & writes...Froyo has also been reported to ruin memory cards...Summary, there's no real solution as i've googled all over....My advice is for you 2 get a new memory card, capacity & class (d higher d number, d better its read & write speed) is up to you...I'm using a class (4) 8GB card n its been alright.
P.S. Stop transferring files via d disk drive option in android..stick to using memory card readers or d MAGDLR function (though some also report file errors with dis).

voncrane said:
Memory cards get weak after awhile...Had d same issue with a Memory card...it works well on WinMo but messes up just as u described in android after a format n a few read & writes...Froyo has also been reported to ruin memory cards...Summary, there's no real solution as i've googled all over....My advice is for you 2 get a new memory card, capacity & class (d higher d number, d better its read & write speed) is up to you...I'm using a class (4) 8GB card n its been alright.
P.S. Stop transferring files via d disk drive option in android..stick to using memory card readers or d MAGDLR function (though some also report file errors with dis).
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Click to collapse
Thanks for your reply
But how come windows and wm can read and write normally but it doesn't work in android?
Also, I have been using NAND and its disk drive option to transfer file in Cotulla's desire stock Rom and there is no problem at all. Would the problem be related to app2sd since the card has a ext4 partition?

do a chkdsk on your micro-sd card. let it repair and then don't delete the LOST folder in your sd card. ^^ you will be able to mount as read/write after this

victortan001 said:
do a chkdsk on your micro-sd card. let it repair and then don't delete the LOST folder in your sd card. ^^ you will be able to mount as read/write after this
Click to expand...
Click to collapse
Try a chkdsk as well...But in my experience, i did it several times & it only acted as a band-aid...As it reverts to read only ltr on...

voncrane said:
Try a chkdsk as well...But in my experience, i did it several times & it only acted as a band-aid...As it reverts to read only ltr on...
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Click to collapse
So is this a SD card problem or ROM problem?
Previously I had been using Cotulla Desire stock Rom for a month and the problem didn't exist.
I don't mind buying a new SD card if it can completely solve the problem. Thanks

[Q]SD Card Recognition

I had HD2 with WP7 7720 4GB SD Card
Decide and bought 16 GB SD Card
Inserted it and when started phone it stucks after 1 2 3 4 5 GO GO GO
Reinstall WP7 Yuki 7720 with 16GB in
Now phone recognize 3,47 GB instead of 14.8GB
Any Fix ?

Is your sd card recognized by a computer? If so I would reformat the card.

when i bouught it i put it in a card reader
card have been already formatted but i perform format again
after i have install wp7 now windows can see it but neither opened it, neither formatted it

Try a hard reset again and see if WP7 picks up the rest of the space on the card. Of course, use the dev_storagelock cab to free up the card and see what you can do with it on your computer.
What kind of SD card are you using? WP7 is very picky.
My first card was a Kingston 4GB class 2 and it caused high battery drain.
My second card was a Kingston 16GB class 4 and it wouldn't even boot into WP7.
I'm now using a fantastic PNY 16GB class 4.
The brand/size/class of your SD card really matters.

try this
I had no proble with my Lexar 8GB Class4; then i tried my Mustang 16GB Class10 and WP7 stated that was incompatible.....
So I decided to make a try; inserted in my PC and run SDFormatter (from Panasonic) and made a full format (i.e. format full with erase ON) .
After that WP7 accepted my SD card, and apparently it is ok....hope it lasts...

anseio said:
Try a hard reset again and see if WP7 picks up the rest of the space on the card. Of course, use the dev_storagelock cab to free up the card and see what you can do with it on your computer.
What kind of SD card are you using? WP7 is very picky.
My first card was a Kingston 4GB class 2 and it caused high battery drain.
My second card was a Kingston 16GB class 4 and it wouldn't even boot into WP7.
I'm now using a fantastic PNY 16GB class 4.
The brand/size/class of your SD card really matters.
Click to expand...
Click to collapse
Well.
Micro SD Card HC Kingston Class 4 16GB
I think the problem is in the card.
When I try to format it with PC Windows 7 I can't normally to format it to NTFS
Only FAT32. Now trying different programs to format it, but when phone starts it freezes on logo about 10-20 minutes after that starts with error for SD Card.
Last I tryed is formatting card with Nokia E52. Leo starts wp7 normal but in Settings -> About only 50 MB free storage. I will try one2one69 what said.

butch_bs said:
Well.
Micro SD Card HC Kingston Class 4 16GB
I think the problem is in the card.
When I try to format it with PC Windows 7 I can't normally to format it to NTFS
Only FAT32. Now trying different programs to format it, but when phone starts it freezes on logo about 10-20 minutes after that starts with error for SD Card.
Last I tryed is formatting card with Nokia E52. Leo starts wp7 normal but in Settings -> About only 50 MB free storage. I will try one2one69 what said.
Click to expand...
Click to collapse
download and use Panasonic SDFormatter... Windows format utilities cannot help you

one2one69 said:
download and use Panasonic SDFormatter... Windows format utilities cannot help you
Click to expand...
Click to collapse
After Format program said that it cannot perform flash erase because of device?
Is this device is card reader?

[Help] SD card corrupted twice in 1 week

Hi Guys..help me out on this one. I'm using a 32gb transcend class 4 SD card and it gets corrupted twice in over a week..all the folders are empty.already did a full format once.

I've had the same thing happen on mine. Has happened twice the same as yours, and a third time all the files gave the permission denied error. I think the ownership changed somehow.
I took mine out temporarily, till I have time to figure it out.
Sent from my SM-N900V using Tapatalk

c00ldude said:
Hi Guys..help me out on this one. I'm using a 32gb transcend class 4 SD card and it gets corrupted twice in over a week..all the folders are empty.already did a full format once.
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Click to collapse
after you have formatted with exfat(dont FAT or NTFS) -try this... shut phone off, remove everything, put back all. start... unmount card from settings>storage and wait for a minute then mount it again.
i have 64GB class 10 and it disappears every now and then and unmounting and mounting works for now.
i havent seen a good solution in this forum(or maybe not found it yet)

rahulganatra said:
after you have formatted with exfat(dont FAT or NTFS) -try this... shut phone off, remove everything, put back all. start... unmount card from settings>storage and wait for a minute then mount it again.
i have 64GB class 10 and it disappears every now and then and unmounting and mounting works for now.
i havent seen a good solution in this forum(or maybe not found it yet)
Click to expand...
Click to collapse
will try it out..

[Q] Issue with 64GB SD card in Samsung Galaxy S4 I9500

Hello
I own Samsung Galaxy S4 I9500 and it is rooted. I recently purchased a class 10 Sandisk Micro SD card with 64 GB capacity. I was very happy that I did but my happiness did not last long when I have come to know that 3rd party apps do not have write permission in Kitkat. After some research I was successful to make the SD card writable to 3rd party apps by modifying the permissions.xml file.
Everything seems to be fine at this time but it was not actually. The SD card when seen under storage in settings would show me that it is mounted with 62.5 GB capacity and 60 GB free. But when I try to browse the files in SD card, there are nothing. Apps saved in SD card do not open and I am also unable to capture images from camera to SD card storage.
I thought may be unmounting the SD card and mounting it back would work and it worked but after a while the same problem. My device shows that it has mounted an SD card but cannot access anything saved in it. So, I have to unmount and mount SD card every time and this is very much annoying.
Any help regarding this would be greatly appreciated.
Thanks you for your time.

uzair007 said:
Hello
I own Samsung Galaxy S4 I9500 and it is rooted. I recently purchased a class 10 Sandisk Micro SD card with 64 GB capacity. I was very happy that I did but my happiness did not last long when I have come to know that 3rd party apps do not have write permission in Kitkat. After some research I was successful to make the SD card writable to 3rd party apps by modifying the permissions.xml file.
Everything seems to be fine at this time but it was not actually. The SD card when seen under storage in settings would show me that it is mounted with 62.5 GB capacity and 60 GB free. But when I try to browse the files in SD card, there are nothing. Apps saved in SD card do not open and I am also unable to capture images from camera to SD card storage.
I thought may be unmounting the SD card and mounting it back would work and it worked but after a while the same problem. My device shows that it has mounted an SD card but cannot access anything saved in it. So, I have to unmount and mount SD card every time and this is very much annoying.
Any help regarding this would be greatly appreciated.
Thanks you for your time.
Click to expand...
Click to collapse
Is thd s.d exfat format ? Try to format from win p.c. and see if it's works.if yes ,try in the phone.if not
try folder mount from play store.not all the app works on external s.d.
Giovanni.
Sent from my GT-I9500 using XDA Free mobile app

Thank you for your reply.
Yes. It is Ex FAT format. Which format should I format it to? Ex FAT or just the FAT format.
It is not about applications. The card just gets undetected after some time and nothing can be accessed including music and images. I have to unmount it and mount again for the device to detect the SD card.

Format your SD Card on your phone its self. Go to settings, storage and than SD Card and format it.

713
gio_b said:
Is thd s.d exfat format ? Try to format from win p.c. and see if it's works.if yes ,try in the phone.if not
try folder mount from play store.not all the app works on external s.d.
Giovanni.
Sent from my GT-I9500 using XDA Free mobile app
Click to expand...
Click to collapse
Thanks mate.. Followed your instructions... Working fine as of now.