mattsbsmith wrote:
Hi,
I have a Samsung SSD (Model: PM 851) that has recently failed. I have had it looked at by 2 data recovery companies who have independently confirmed that the processor/controller (which from my research I've discovered to be a 4th-generation 3-Core Cortex-R4 Samsung MDX Controller [S4LN045X01-8030]) has failed. I have been advised by the companies that the data is likely still residing on the NAND chips and that technically the data could be retrieved using 'chip off' techniques. They have further advised that this would be a futile exercise however as the processor/controller uses a unique XOR pattern which obfuscates the data, rendering the data, should it be recovered successfully, unreadable.
I have two questions that I am hoping someone may be able to help answer:
1. Is there any way of emulating the controller/processor programatically i.e. decoding and reassembling the data by finding the XOR key? Has anyone had success doing this?
2. Is there any way of repairing the controller or replacing it with another (set to use the same XOR key)? Again, if anyone has done this I'd like to know if it was successful.
Please understand that my knowledge of all this is very limited.
Many thanks in advance,
Matt
Matt ,
Most Of The SSD's Have Issues In Translator and Hence They Do Get Detected But No User Area Data Access .Depending On The Controller And Its Current Firmware Tool Developers They Keep Adding Support For Them Slowly And Slowly.One Such Tool Is PC 3000 SSD .This is Whats Supported In Samsung Yet And Lots of New Samsung Controllers Are Going To Be Supported By Summer 2017
SAMSUNG family
Samsung MLC (S3C29RBB01-YK40 CPU based);
Samsung 470 Including Apple models (S3C29MAX01-Y340 CPU based) ;
Samsung PM810 (mSATA version of 470) (S3C29MAX01-Y340 CPU based);
Samsung 830 Including Apple models (S4LJ204X01-Y040 CPU based);
Samsung PM830; (S4LJ204X01-Y040 CPU based)
Samsung 840 (S4LN021X01-8030 CPU based);
Samsung PM840 (S4LN021X01-8030 CPU based);
Samsung PM841 (S4LN021X01-8030 CPU based);
Samsung 840 Pro (S4LN021X01-8030 CPU based);
Samsung 840 Evo (Including mSATA) (S4LN045X01-8030 CPU based);
Samsung PM851 (Including mSATA) (S4LN045X01-8030 CPU based);
Samsung CM871 (S4LN054X02-Y030 CPU based);
Samsung 850 Pro (S4LN045X01-8030 CPU based);
So Instead of This Please Wait .But Do Power This Drive Once Weekly So the Memory Cells Remain Intact with Your Data .All Said And Done Three Other Companies Make Chipoff Solutions Like Softcenter ,Rusolut And Acelab ,They if Have a Solution now can be tried .Some of the most intelligent users of such tools are here in forums .So Take Your Call
_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website->
http://www.chandigarhdatarecovery.com