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Author Topic: Random Bad Block Issue  (Read 22 times)

Aldanga

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Random Bad Block Issue
« on: October 19, 2010, 09:50:00 AM »
A bad block is not something that's specifically in an image, but rather within the NAND itself which requires the modification of an image in order for it to work properly.

The first image is a generated image. It won't have bad blocks by default. However, when it's flashed to the NAND and read back it can have bad blocks. This is because certain sectors of the NAND are corrupted or unwritable/unreadable, so the data which is supposed to go in those sections is moved to the reserved area so that it can be used.

The restarting could be the result of a short on the motherboard or a finicky power supply. It's not necessarily the result of bad blocks.
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Aldanga

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Random Bad Block Issue
« Reply #1 on: October 19, 2010, 11:08:00 AM »
If you look at the Degraded analysis of your image it states that the bad block has already been moved. I am assuming this is because of how you flashed (with Flash360 or XeLLous, which automatically move bad blocks), so you don't have to move anything. If you were going to flash via LPT or USB SPI you would need to manually move the blocks, but that's not the case here.
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