Causes of Data Loss in Mobile Device / PDA
- Dropped device
- Inaccessible device
- Applications that are unable to run or load data
- Corrupted data
- Media component failure
- Media crashes
- Fire, water, coffee and other liquid damage
- Media surface contamination and damage
- Accidental reformatting of device
- Accidental deletion of data
Recovery of crashed hard disks often involves replacing failed or damaged components in a clean environment (Clean room class 100) and using specialized hardware and software tools to create the raw image. Failed components typically include electronics, read/write heads, head assemblies, magnets & drive motors.
Logical recovery uses the raw image by examining the low-level data sectors and determining what fixes to file system structures are needed to get access to the important data. Sometimes the existing file system structures are missing or damaged so much that data has to be extracted directly from one or more fragments of the raw image.
Once a recovery has been successfully performed, file lists are created and data validity and integrity is checked.