This is inside the Flash chip in the motherboard (not the sim), and it is possible as the flash chip is big, and often there is bad blocks.

You can with the JapharFlasher or the BIOS set to check the blocks again. See topic below,

Bad Blocks Check : http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=3137#Post3137

If the blocks are recoverable, it will, if not then it's not a problem, as these will be marked bad and not used.

TS
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