Problem Reading Sandisk NANDs SDTNKFHSM-16384
Posted: 07.11.18, 19:57
I'm trying to dump a couple NANDs from a CF card with Sandisk controller 20-99-00104-3. The controller chip was cracked in half but the NANDs look physically fine, no cracks or anything like that. I even checked them carefully under a microscope.
The NANDs are typical TSOP-48 with marking of SDTNKFHSM-16384 on them. When I try to read ID of either NAND I keep getting the following error:
I've even tried turning up the power limit to 500ma and it's still getting an overcurrent error.
I've cleaned the contacts a dozen times, polished them, and they are as clean as a brand new NAND. I've even inspected under a microscope to be sure all the pins are visibly aligned under the clamps of the reader, all is good there. I've reseated it hundreds of times. I've tested other NAND chips and they all ID fine so I know the reader and TSOP socket are fine.
Anyone have any ideas why I can't read these chips?
(And yes, I know which way to put it in the reader. I've even tried it the other way just to be sure)
The NANDs are typical TSOP-48 with marking of SDTNKFHSM-16384 on them. When I try to read ID of either NAND I keep getting the following error:
- error.png (11.8 KiB) Viewed 13023 times
I've even tried turning up the power limit to 500ma and it's still getting an overcurrent error.
I've cleaned the contacts a dozen times, polished them, and they are as clean as a brand new NAND. I've even inspected under a microscope to be sure all the pins are visibly aligned under the clamps of the reader, all is good there. I've reseated it hundreds of times. I've tested other NAND chips and they all ID fine so I know the reader and TSOP socket are fine.
Anyone have any ideas why I can't read these chips?
(And yes, I know which way to put it in the reader. I've even tried it the other way just to be sure)
