Flash Q&A

Q1：How to check whether there are bad blocks in nand flash?

Execute nand bad in the uboot stage

Q2：Are all fake bad blocks that can be erased using nand scrub?

No, they are not. The scrub only cleans the oob partition (regardless of whether the bad block is true or false). Misuse of scrub may result in the destruction of the real marked bad block. It is recommended not to use it lightly.