Mobile SD card Corruption remediation measures

Now the application is getting heavier, for example, and so on, a little bit of time, will occupy dozens of MB or even hundreds of megabytes of space. And sometimes even the phone will appear "no response" phenomenon, you need to choose "continue to wait" or "forcibly shut down", before the number of times, no response I directly to the forced restart, the results found that after the restart, "SD card is corrupted, you may have to reformat it" issue.

However, my SD card also has some of the previous documents and materials, etc., need to copy out, can not format, using Pea pod link, do not know the SD card, so look for solutions.

I found the card reader, the SD card alone in the computer, but found that the computer is not recognized. Find other ways on the Internet (http://www.xiaomizhou.net/content-detail-104/), so try it:

Refer to the following steps:

1. put the hand machine, unplug the SD card, and insert the SD card into the card reader, connect the computer USB, the computer prompts the format, the point cancels.

2. Through the computer, select the drive letter, right-click on the properties, directly using the tools in the properties-start the check, found unable to check the disk error. If it does not respond, proceed to the next step;

　　

3. Click on the "Start Menu"--"run"-Chkdsk h:/f (H: Is your SD card letter,/F is the repair parameter.

　　

4. Wait for the repair to complete and the DOS window will automatically close.

5. After the repair is complete, check the properties of the TF card and the display is normal.

6. Plug the SD card back into the phone and find everything is OK. All the information is in, no loss situation.

Well, I look at this key chkdsk command here (part of the content from Baidu Encyclopedia (http://baike.baidu.com/view/61532.htm)):
The full name of CHKDSK is Checkdisk, which is what disk checking means. This is something that is called by the system to check the disk when your system is down or when it is illegally shut down, or by manually invoking the command line to check a disk partition. The tool creates and displays status reports for disks based on the file system used by the partition being detected. Chkdsk also lists and corrects errors on the disk. If you do not take any parameters, Chkdsk displays the status of the disks in the current drive.
Syntax commands:
chkdsk [Volume:][[path] FileName] [/f] [/V] [/R] [/x] [/c] [/l[:size]]
Parameter explanation:
Volume: Specifies the drive letter (Colon delimited), mount point, or volume name.
[Path} FileName] Specifies the location and name of the file or set of files that you want Chkdsk to check for defragmentation. You can specify multiple files by using wildcards (* and?).
/F Repairs errors on the disk. The disk must be locked. If Chkdsk cannot lock the drive, a message appears asking if you want to check the drive the next time you restart your computer.
/V Displays the name of each file in all directories when the disk is checked.
/R finds bad sectors and recovers readable information. The disk must be locked.
/x is only used on NTFS. If necessary, first force the unmount of the volume. All open handles to the drive are invalid. The/x also includes the function of/F.
/I is only used with NTFS. Reduce the amount of time it takes to run Chkdsk by checking the index entries with less intensity.
/C is only used with NTFS. Skips the cycle check in the folder structure, reducing the amount of time that is required to run CHKDSK.
/l[:size] is used only with NTFS. Change the size of the log file to the size entered by the user. If this argument is omitted,/L displays the size of the current log file.
/? Displays help at the command prompt.
Comments

Run Chkdsk
Enter Chkdsk X in the run: (see parameter explained above), return
For example, the input chkdsk e:/f/r return run is to repair the error on the E-drive and find the bad sector recovery readable information
The Chkdsk tool is run in the Chinese language in the Windows class environment

The above operation is the command line, but also through the graphical interface program run, but the display content is brief.
Open My Computer, right-click the disk you want to detect-Properties-Tools tab-Start check

Check options:
Automatic repair of file system errors (A): Fix errors on disk. The disk must be locked and if the disk is occupied, the option to check at the next boot is displayed. Equivalent to the/F command on the command line
Scan and attempt to recover bad sectors (N): Find bad sectors and recover readable information. The disk must be locked. Equivalent to the/r command at the command line

Report Disk Errors
The chkdsk command checks disk space and file allocation table (FAT) and the usage of the NTFS file system. Chkdsk provides information specific to each file system in the status report. The status report displays errors found in the file system. When you run Chkdsk on an active partition, if the/F command-line option is not included, it may report spurious information because it cannot lock the drive. You should not periodically use CHKDSK to check for errors on each disk.

Use note
Considerations for using the Chkdsk command
(1) Do not use Chkdsk when a file is open when there is a file opened. Because CHKDSK is designed to assume that a disk file is turned off. When a file is opened, the corresponding MS-DOS will modify the file allocation table and directory structure. This change does not necessarily occur immediately, and changes in the file allocation table and the directory structure take place at different times. Therefore, if you run Chkdsk on a disk when the file is open, the inconsistency between the directory structure and the file allocation table is interpreted as an error, resulting in data loss or file system corruption. Therefore, never run Chkdsk when you run other programs, such as Microsoft Windows.
(2) CHKDSK is not available for assigned drives and networks.
Chkdsk cannot be used for drives that are formed by the subst command, nor for disk checks on network drives.
(3) Physical Disk error
The chkdsk command can only find logical errors in the file system and cannot look for physical disk errors. To find a physical disk error, use the ScanDisk program.
(4) Bad disk sector
Chkdsk reports that bad sectors are flagged as "ill", ScanDisk and other physical disk error fixes also mark bad sectors as "poor", so bad sectors do not cause harm.
(5) cross-linked files
If you have two files or directories that share a record of the same disk space, CHKDSK reports a cross-linked file. If Chkdsk discovers that a cross-linked file exists, it will appear similar to the following message:
is cross linked on allocation unit
CHKDSK does not patch the crosstab file even if the/F item is specified. To repair a cross-linked file, you need to run the ScanDisk program, or manually fix it, and then copy it to the specified file and delete the original file.