[Resolved] 64gb micro sd not working - AT&T Samsung Galaxy S II Skyrocket SGH-I727

So I got a new 64gb micro sd card for Christmas and it doesn't seem to work on my phone whatsoever. Every time I put it into my phone it says it's damaged and that I need to format it, but instead of formatting it, it erases all my files in the internal storage. I didn't realize it the first time and it was very annoying to find out it did that. The micro sd card does however, work on my pc. So I've tried to format the sd card mutiple times on my pc , using different apps and formatting it to different types, but none of it seems to be working. I do not think it has anything to do with my cfw I have on because I changed it and I'm still having the same problem. So any help or suggestions would be appreciated as I would really like to have the extra storage on my phone.

You have to format it as FAT32. Skyrockets won't read it if it's formatted any other way.

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[Q] SD Card Problem

Can someone help me on this.. every time i plug my sd card to the PC it says "Format disk?" and when i plug it to my phone, it says "Blank Sd card". i can't reformat it and i can't access the files in my sd card..
i've tried several formatting tools, revery tools, but none of them work..
My sd card is SanDisk 2GB MicroSD card..
i Hope there is a solution..
There are a ton of threads on this. Search through and use a couple of them.
Sounds like you have a bad card or your are not unmounting the card in your phone.
Some viruses and rootkits will prevent your pc from formatting or recognizing external media. Verify your computer can recognize other cards.
yeah i know there are lots of threads about this.. but , no luck, non of them work..i plugged it at other devices and still the same.. xD w/c means sandisk is bad?
ivanmnx078 said:
Can someone help me on this.. every time i plug my sd card to the PC it says "Format disk?" and when i plug it to my phone, it says "Blank Sd card". i can't reformat it and i can't access the files in my sd card..
i've tried several formatting tools, revery tools, but none of them work..
My sd card is SanDisk 2GB MicroSD card..
i Hope there is a solution..
Click to expand...
Click to collapse
same **** happened to me..(twice!) and appaerantly there isn't any easy way to recover an sd card from that state. Easiest (though most expensive) solution is to just buy a new one..
Yep - sounds like its broke. BUT consider that back in the day a floppy disk would run you $1 or $2. If you scaled that up a 2gb card would cost $1,400 to $2,800.
Makes me want to go backup.
sound like its broken, but try to use minitool partition wizard.
use this settings:
-Choose Create as Primary.
-Patrition type Ext2
-Cluster size 4Kb Cluster size 4Kb

Damaged SD Card

Hi guys,
My phones micro-sd card has been acting strange and was not being recognized at times by my phone. I then proceeded to put it in its SD card adapter and put it in my Mac and got an error saying the card was unreadable. I then put it in a reader on my PC and everytime I try to access the drive it gives me the 2 errors, "You need to format the drive...etc" and after clicking cancel it says that my drive is an unrecognized file format.
Recuva says it can't read the boot sector and running chkdsk gives me the message that the file format is RAW.
Just tried running ReclaiMe file recovery and it says the card is only 30.6MB while it is actually a 32GB card.
Do you guys think there is any hope? Or should I just move on?
Any help would appreciated. Got a lot of pictures and music I would love to save on the drive, plus ROM backups.
Thanks so much
Bump
I've killed an SD card before.. not sure how.. it had been partitioned EXT3 for a rom on a desire.. then re-formatted to normal..
but the problem came months after without notice one day the camera was failing and the gallery wouldn't open..
I tried a new SD card and things were fine so I figured the SD card died
Try to use MiniTool Partition Wizard on your pc, and delete ext partition and swap stay only on fat32. if that does not work format your card to exfat. If that doesn`t work try use program "winhex"(before i used it, my computer hadnt read my card). I repaired my card 3 times these methods.
You can use this ONLY on memory card reader.

sd card unable to mount

Hi all,
I recently installed wicked v9.1 rom on my T-mobile Galaxy S3. Prior to that I was running Wicked v8 and everything was fine. I have a 64gb Sandisk sd card and it was working fine until this flash. I put the card in my pc and all my files are still on there and accessible so I backed them up on my PC. Then I formatted my sd card to exfat and tried mounting in the phone again, it gives me the same problem: It says preparing sd card/checking for errors, then it just says sd card is safe to remove. I tried going into settings to mount it but it does the same thing and doesn't offer a format option. I'm not sure what the problem is here since it works perfectly fine on my PC, I even ran a chkdsk /f on it and no errors were found. Any help would be appreciated, thanks!
I may not have the same device as you, but I've run into the exact same problem with two of my sd cards. My phone refused to recognize my sd card, even though Windows reported it as working fine. When I looked into the storage info, I was not able to format the card as well.
I tried the non-working memory cards in a few other Android devices with similar results - they were not being read. This led me to conclude that there was something wrong with the card, or more specifically, how Android handled the sd card.
On one of my cards (Generic Brand 1GB), a simple format with MiniTool Partition Wizard fixed the problem. On the other hand, a 16GB Patriot card refused to work after multiple formats (regular and deep). I t was still under warranty though and the replacement works fine.
As a last ditch effort, look and see if your SD manufacturer offers any special formatting utilities.
Hope this helped!

Recovering an "Adopted" SD Card?

Hi folks,
I have an SD card here that I was using for Adopted Storage but I've managed to get it stuck as an "adopted" card and can't seem to get it back functioning as a normal SD card
Long story short... I wiped the device the card was in but I didn't "unadopt" the SD card before hand - as in set it back to portable mode. While the device could recognise there was an SD card afterwards, it couldn't prepare it for use and suggested a card error or something to that effect.
I figured I'd just pop it in my laptop (Windows 10 x64) and re-format it but this didn't work. Failing this, I decided I'd "nuke" it using Minitools Partition Wizard. While this program had better luck identifying the card, could display and delete the partitions on it and could run the Wipe task - it had no effect on the card... the partitions just re-appear after any attempt to nuke them!
Has anyone any ideas about how I can restore this card back to a normal FAT formated SD card?
Just to clarify - I don't care for the data that might be on it... I just want the card back usable
Thanks
Recovering an "Adopted" SD Card?
The best solution for now would be to plug the sd card into a phone with android 6.0 so that the phone can read the card and then while setting it up,you can format the card as "normal "(the part where it asks you whether to use the card as in adaptive storage or for accessing files).
Sent from my iPhone using Tapatalk
Cruzy12100 said:
The best solution for now would be to plug the sd card into a phone with android 6.0 so that the phone can read the card and then while setting it up,you can format the card as "normal "(the part where it asks you whether to use the card as in adaptive storage or for accessing files).
Click to expand...
Click to collapse
When I try this, I get "Unsupported SanDisk SD card"
I'm then asked to select either Portable or Internal and then Erase & Format but neither work. They fail at 20% and the message "Unsupported SanDisk SD card" is shown again
I'm a bit stumped. I thought surely the encryption used on adopted cards was only to stop external reads. It seems in this case it's stopping me from writing to or formating the card
Running out of options

SD Card formatted as internal / adaptable storage is not recognized anymore.

Basically I have an SD Card that I formatted as internal memory. It has worked well for about a year now. Today though, the phone told me that the card had been removed and that I should re-insert it. At the same time, it tells me that the very same cards format is incompatible and I have to format it in order to use it. All this while I never removed the card. The phone is a Moto G5 running Pixel Experience.
What I've tried so far is rebooting the phone and taking the card out and inserting it again, in various orders. Inserting the card into various computers, none of which recognize it (as expected). GPartEd shows the space on the card as not allocated.
Is there anything I could do to make that card be recognized again? Or else, to get the data off of it?
If this is not the right forum for this question, please tell me, or, if you're an admin, please move the thread.
When you converted external SD-card to Adoptable Storage it got formatted as internal memory and also encrypted as internal memory is.
AFAIK there is no chance to recover the data stored on because they are AES-encrypted.

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