I had bought SanDisk Ultra micro SDXC 64GB card back in January 2014 to be used with my Samsung Note 3.
Mostly used it to store Photos, Videos, Movies, Music, E books, some notes. There were almost no android system file, maybe a few apps.
So for last 1 month or so I started facing error from card. It would disconnect on its own from mobile. I had to restart phone to detect it again. Thinking there might cause trouble in future I got a backup done.
Now what happened about 2 days back I was writing few files to SD card via phone (mass storage mode) suddenly got error and could not write anything to it.
Or delete stuff from card.
So I connected via card reader. Now I have taken care that LOCK is not ON.
I saw that all my files were there intact but I could not delete or write anything to card. CARD IS NOT FULL.
Almost 30GB is free.
Then I tried formatting and that did not work too.
Here are stuff I tried-
- Changed card reader and SD Adapter, with care that lock in OFF.
- Tried formatting on Laptop which has inbuilt card reader.
- Tried formatting on Note 3, which unmount and mounts card back and is unable to format it.
- Tried formatting on old Nokia phone.
On Desktop I have tried
1- Formatting from “My Computer” both quick and normal and changing file system too. Shows “Windows unable to complete task”.
2- Formatting from “Disk management”- FAILED
3- Formatting from command prompt.
4- Formatting with external softaware like “SD Formatter 4.0 for SD/SDHC/SDXC”, “HDD Low Level Format Tool 4.01”, “HP USB Disk Storage Format Tool - v2.1.8” and “Active @ KillDisk”
Also thought maybe disk might VIRUS infected or spyware so checked with appropriate software.
Maybe disk got write protected
- So tried to change via Command prompt- NO USE
- Tried via Registry
(HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies). Changed WriteProtect key to 0.
Ran Check Disk
- When disk is connected
- Via Command prompt, card is corrupted so “chkdsk H:\ /f” and then to Fix file system errors on the disk.“chkdsk H:\ /r”
BUT ALL THIS OF NO USE. Still cannot format.
Now I dont care about data as I have already taken backup.
And I have LIFETIME WARRANTY too on card.
But problem is all files on card Pictures, videos and most importantly my bank account details etc are on card.
Even thought I cant delete or write, it can be easily be copied.
I dont want to return it to company with them on card.
So anyone can help me?
Also sorry for long post. I’m long time Windows user and tried everything in my power. Please help.