Take it down to your local computer store and this should cost £20-50.
"Most local computer repair companies should be able to retrieve your data in the event of a corrupt external hard-drive. If you have a Geek Squad in your town, they do good work. If you would like to try retrieving the data yourself, the Ddrescue software is one of the best programs for this task."
Yes, you can. If the external hard drive is formatted using the FAT32 or NTFS file system then you can read it in any windows computer. If you have it formatted as one of the Linux file systems (EXT2, EXT3, JFS, etc.) then just pop in an Ubuntu Live CD into the computer that you want to retrieve the data with and copy it off.
The benefits of using a hard drive data recovery system is that one is able to recover lost data from a hard drive, whether it be through virus, crashes, etc. This is often very important for recovering sensitive and important data.
The external hard drive is a great way of backing up your data.
True!
To store data
Memory Controller Chip
Data can be recovered from a damaged hard drive in a number of ways. Hard drives damaged through user error can have their data recovered through various programs. Otherwise a data recovery company can help.
How do you validate and retrieve data from database?" How do you validate and retrieve data from database?"
to save failes and data in it
The external hard drive's controller may have failed. If the warranty is out or of no concern, and you are technically capable, you might try to open the device and remove the drive. Install the drive in a computer or use an external docking station or adapter, and you may be able to access the drive. If this does not work, many software utilities exist as well as services that will open the drive in a clean room and attempt to recover the data.
If the files were saved on the external memory (or mass memory) of the Android phone, then the answer is YES and chances of recovery can be 100% as long as the data contained in the files are not overwritten or damaged.