Chip reading. ECC usage. Page layout. Dump reread. Read Retry.
In this webinar, we show the very first steps of the NAND data recovery process. Next topics are discussed (timestamps below):
a case creation/ case types
how to identify a memory chip
how to select and use a proper NAND adapter
how to find and check the NAND chip configuration
the voltage control
how to read a memory chip
how to use ECC correction
how to define the page layout
how to improve the dump quality using the reread Dump tool
how to use the read retry
The link to the PDF presentation:
https://drive.google.com/file/d/1E_pQ...
00:00 VNR case types
01:34 NAND chip and NAND adapter types
05:55 The configuration
08:17 ID reading. Configuration selection
16:45 Configuration test. Data quality test
28:52 The Voltage control
38:34 How to select a configuration if there are several of them. SDR and DDR protocols
47:16 ECC
58:43 PAGE structure
01:03:11 Case study. Phison controller ECC applying and PAGE layout setting
01:17:07 ECC codeword test
01:22:19 Case study. SM controller ECC applying and PAGE layout setting
01:25:02 Case study. AU controller ECC applying and PAGE layout setting
01:28:40 Case study. Sandisk controller ECC applying and PAGE layout setting
01:31:08 DUMP rereading. How to fix uncorrectable by ECC pages.
01:43:03 READ RETRY
Links to the articles:
Chip reading - https://support.rusolut.com/portal/kb...
Voltage control - https://support.rusolut.com/portal/kb...
Binary patterns in NAND memory - https://support.rusolut.com/portal/kb...
ECC in NAND memory - https://support.rusolut.com/portal/kb...
Read Retry - https://rusolut.com/wp-content/upload...