Why we need to analyze page structure via data recovery software?

In flash chip, binary numbers carry both user data and service information. Moreover, user’s data is not stored in physical order, namely data will not be stored in continuous pages but randomly stored in a chip that is why we need data recovery software. Thus, how can we read user’s data in our computer? This is because the controller of flash device will remove service information and re-organize user’s data which stored randomly to logic order. However, if a flash device is damaged, we need to read raw binary numbers from flash chip via data recovery software, and use a professional tool to remove service information and re-organize user’s data. Therefore, we need to “tell” the program what is the exact page structure of that flash chip with the help of data recovery software.

How do we figure out the page structure via data recovery software?

In HDD, data is stored in physical order and you can have a relatively easy understanding of the location of data.  For example, the sector 0 is always used to store Master Boot Recorder (MBR) while the sector 63 usually stores Dos Boot Recorder (DBR). However, in flash chip data is stored randomly and you have no idea on the exact location of the data.
Thus, To figure out the page structure, you need to analyze the content of a whole page with the help of data recovery software. The problem lies with that the binary numbers are sheer meaningless and you cannot tell real data from null data. Therefore, you need to view the data which has been defined in file system via data recovery software. The data includes MBR, DBR and File Directory Entry etc. and you need hexadecimal editor data recovery software like Winhex to make diagnosis. Following instruction is the detailed step to work out the page structure via data-recovery-software Winhex. (in this case It’s a flash chip with page size 2112 bytes and page structure is 2112_1, namely service information is distributed evenly).
•Step 1 Open the binary file in data-recovery-software Winhex saved by flash doctor