Hi There,
I have an issue that cannot disable write protection mode on a dell chomebook which FW is Google_Coral_10068.63.0.
Both BIOS and EC flash ROM were reprogrammed with brand new chips before we installed the RMA shim R69.
1.
flashrom –p host –wp-disable (AC only, Battery is disconnected)
coreboot table found at 0x7ab36000.
FAILED
2.
fmap_decode readbios.bin
fmap_signature="0x5f5f464d41505f5f" fmap_ver_major="1" fmap_ver_minor="1" fmap_base="0x0000000000000000" fmap_size="0x1000000" fmap_name="FLASH" fmap_nareas="35"
area_offset="0x00000000" area_size="0x00400000" area_name="WP_RO" area_flags_raw="0x00" area_flags=""
area_offset="0x00000000" area_size="0x00001000" area_name="SI_DESC" area_flags_raw="0x00" area_flags=""
area_offset="0x00001000" area_size="0x001ff000" area_name="IFWI" area_flags_raw="0x00" area_flags=""
area_offset="0x00200000" area_size="0x00004000" area_name="RO_VPD" area_flags_raw="0x00" area_flags=""
area_offset="0x00204000" area_size="0x001fc000" area_name="RO_SECTION" area_flags_raw="0x00" area_flags=""
area_offset="0x00204000" area_size="0x00000800" area_name="FMAP" area_flags_raw="0x00" area_flags=""
area_offset="0x00204800" area_size="0x00000040" area_name="RO_FRID" area_flags_raw="0x00" area_flags=""
area_offset="0x00204840" area_size="0x000007c0" area_name="RO_FRID_PAD" area_flags_raw="0x00" area_flags=""
area_offset="0x00205000" area_size="0x0017b000" area_name="COREBOOT" area_flags_raw="0x00" area_flags=""
area_offset="0x00380000" area_size="0x00040000" area_name="GBB" area_flags_raw="0x00" area_flags=""
area_offset="0x003c0000" area_size="0x00040000" area_name="RO_UNUSED" area_flags_raw="0x00" area_flags=""
area_offset="0x00400000" area_size="0x00030000" area_name="MISC_RW" area_flags_raw="0x00" area_flags=""
area_offset="0x00400000" area_size="0x00021000" area_name="UNIFIED_MRC_CACHE" area_flags_raw="0x00" area_flags=""
area_offset="0x00400000" area_size="0x00010000" area_name="RECOVERY_MRC_CACHE" area_flags_raw="0x00" area_flags=""
area_offset="0x00410000" area_size="0x00010000" area_name="RW_MRC_CACHE" area_flags_raw="0x00" area_flags=""
area_offset="0x00420000" area_size="0x00001000" area_name="RW_VAR_MRC_CACHE" area_flags_raw="0x00" area_flags=""
area_offset="0x00421000" area_size="0x00003000" area_name="RW_ELOG" area_flags_raw="0x00" area_flags=""
area_offset="0x00424000" area_size="0x00004000" area_name="RW_SHARED" area_flags_raw="0x00" area_flags=""
area_offset="0x00424000" area_size="0x00002000" area_name="SHARED_DATA" area_flags_raw="0x00" area_flags=""
area_offset="0x00426000" area_size="0x00002000" area_name="VBLOCK_DEV" area_flags_raw="0x00" area_flags=""
area_offset="0x00428000" area_size="0x00002000" area_name="RW_VPD" area_flags_raw="0x00" area_flags=""
area_offset="0x0042a000" area_size="0x00005000" area_name="RW_NVRAM" area_flags_raw="0x00" area_flags=""
area_offset="0x0042f000" area_size="0x00001000" area_name="FPF_STATUS" area_flags_raw="0x00" area_flags=""
area_offset="0x00430000" area_size="0x00480000" area_name="RW_SECTION_A" area_flags_raw="0x00" area_flags=""
area_offset="0x00430000" area_size="0x00010000" area_name="VBLOCK_A" area_flags_raw="0x00" area_flags=""
area_offset="0x00440000" area_size="0x0046ffc0" area_name="FW_MAIN_A" area_flags_raw="0x00" area_flags=""
area_offset="0x008affc0" area_size="0x00000040" area_name="RW_FWID_A" area_flags_raw="0x00" area_flags=""
area_offset="0x008b0000" area_size="0x00480000" area_name="RW_SECTION_B" area_flags_raw="0x00" area_flags=""
area_offset="0x008b0000" area_size="0x00010000" area_name="VBLOCK_B" area_flags_raw="0x00" area_flags=""
area_offset="0x008c0000" area_size="0x0046ffc0" area_name="FW_MAIN_B" area_flags_raw="0x00" area_flags=""
area_offset="0x00d2ffc0" area_size="0x00000040" area_name="RW_FWID_B" area_flags_raw="0x00" area_flags=""
area_offset="0x00d30000" area_size="0x00200000" area_name="RW_LEGACY" area_flags_raw="0x00" area_flags=""
area_offset="0x00f30000" area_size="0x0004f000" area_name="BIOS_UNUSABLE" area_flags_raw="0x00" area_flags=""
area_offset="0x00f7f000" area_size="0x00080000" area_name="DEVICE_EXTENSION" area_flags_raw="0x00" area_flags=""
area_offset="0x00fff000" area_size="0x00001000" area_name="UNUSED_HOLE" area_flags_raw="0x00" area_flags=""
3.
flashrom –p host –w bios.bin
Calibrating delay loop... OK.
coreboot table found at 0x7ab36000.
Erasing and writing flash chip... Good. It seems nothing was changed.
FAILED
Yuehui(Bank) Wu
Testing Engineer
MLB Engineering
CSAT Solutions LP
Work: +1 (713) 934-5200
Mobile: +1 (832) 729-1686
