We are glad to announce that we have finished the beta test of the new versions of data recovery tools which have new functions appended:
1. Flash Data Recovery Tools Flash Doctor Ver.1.40
1. Add the feature to modify page size.
For some FLASH devices, the data recovery tools can not correctly detect the real page size; therefore the data recovery tools provide an option for users to modify page size after analysis. Example, if the data recovery tools detect the page size as 4224, but users find that data is not complete in a page, namely there is not enough bytes to form a sector. In this case, users can modify the page size and read the chip again using the data recovery tools.
Procedure for modifying page size using flash data recovery tools:
Step 1. Input added bytes in the blank marked in red as above. Example, if users think that real page size should be 4288, you need to input 64.
Step 2. Click the button of Chip Identification.
Step 3. Read the data from chip once more.
2. Special Page Structure setting in data recovery tools
Generally, data unit in FLASH device are composed of 512 bytes data plus some bytes of service word, i.e. 512+16. However, some FLASH devices have special page structure. The standard data unit is divided into several sections, namely sub data unit is less than 512 bytes. Another special structure is that several data unit will merge into bigger unit, namely the data unit is bigger than 512 bytes.
3. Data recovery tools against “Block is divided into sections”
As in the above picture, the data unit has 528 bytes, which is divided into three sections:
Data Unit Size=SectionSize1+SectionSize2+SectionSize3
528=512+16=(176+4)+(168+4)+(168+8)
4. Data recovery tools against “Sections merge into bigger block”
As in the above picture, four data units will merge into the data unit:
Data Unit Size=SectionSize1+SectionSize2+SectionSize3+SectionSize4
4288=(1024+50)+(1024+46)+(1024+46)+(1024+50)
5. Data recovery tools against “Half Page”
For some FLASH device, data will not be stored in a whole page. Instead, only the first half will be used and the second half will be filled with “FFFF”. Users need to select the option of Half Page, thus the program can correctly collect the data.
2. Drive Data Recovery Tools Data Compass Ver.7.40
Updated Function: Reset power when error occurs.
According to standard ATA protocol, BSY bit of status register will be set to “1″ (active) to tell the host that HDD can’t process any ATA command when HDD gets stuck. In such case, Data Compass can issue a soft reset, hard reset or power reset command to HDD and bring it to the status of DRD. During our data recovery job, we found that some portion of HDD especially some Barracuda 7200.11 and 7200.12 do not obey such ATA protocol most of the time: The BSY bit will not be set to be “1″ even when HDD gets stuck; instead, the status register will still be ‘ready’. Thus, Data Compass can not monitor this and will continue to read but off course all the content will be “4040″ as HDD gets stuck. In version 7.4, such kind of situation has been taken into consideration: Once you select the option of “Reset power when error occurs”, the program will check the read content. If the content turns out to be all “4040″, the program knows the HDD gets stuck (even though the status register reports ‘Ready’) and will reset the power to bring HDD to readiness, therefore the data in the rest of the sectors can be read properly.
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All users who installed the previous version of the above data recovery tools can simply install and use the new version of data recovery tools by downloading the installer of the data recovery tools from the web forum (users may need to login with a forum VIP account).
We are happy to receive your comments and questions on our data recovery tools to support@salvationdata.com
Best regards,
SalvationDATA Customer Service Team
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