Description: Products used in the actual process, the repeated loss of ResidentFlash directory phenomenon, because in writing when the OS first collated Flash disk, if at this time may be burned down Flash, in order to prevent such failures hidden amended the NANDFLASH drive . By modifying the NANDFLASH drive to restrict the user application to access restricted region (nboot region, toc region, eboot region, nk mirror region, OEM region), so that these areas are write-protected, so as to achieve the purpose of protection of flash.
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