Bios needed, Dell E5550, Tag FSFB262, Zam80 La-911P Rev.1

[re1nhold]

Hello Guys

I'm currently fixing two different Dell latitudes,
I need a E5550 BIOS - SERVICE TAG is: FSFB262

So far I flashed about 6 BIOS from this forum already,
none worked,
only fan spin ~3s, LCD black, keyboard LED on/off ok,
I tried manual extraction with scripts for ages so to speak. VM is untried yet.
This laptop is not burnt, it seems to just have a corrupted BIOS.
I extra baught ram. This has to work friends.

Do you generate it this way in Windows in CMD?:

E5550A24.exe /writeromfile C:\bios.fd

Please help
PS: official BIOS version works better than older versions? I don't know.

[re1nhold]

correction this image above fsf262 has me and its activated, but not latest version, it has 20 modules the latest has 28 and this above has a working BIOS
i disabled altme bit on mine, and it seems ok so far very short term.
more would be nice but the cleaner version i use has a bug it always removes 2 to 4 essential modules

[re1nhold]

+3.3V_ALW tested +2.99V
Seems a bit low?
Too low?

[re1nhold]

Now +3.3V_ALW is +3.27V

[re1nhold]

I ME cleaned "generic" BIOS images from the forum, including "original" dump from actual chip, not even getting a fan spin, seems corrupted, but with others it spins and flashes LED.

I keep testing rails and me_cleaned images.
I need help BIOS for FSFB262


On the generic it finds 28 partitions on the "original" on the chip just 20
generic:
python me_cleaner.py -S -O modified_20200918_215536_SVOD3+ME10.0.56.3002.bin 20200918_215536_SVOD3+ME10.0.56.3002.bin
Full image detected
Found FPT header at 0x5010
Found 28 partition(s)
Found FTPR header: FTPR partition spans from 0x160000 to 0x210000
ME/TXE firmware version 10.0.56.3002 (generation 2)
Public key match: Intel ME, firmware versions 9.5.x.x, 10.x.x.x
The AltMeDisable bit is NOT SET
Reading partitions list...
PSVN (0x00000bc0 - 0x000000c00, 0x00000040 total bytes): removed
FOVD (0x00000c00 - 0x000001000, 0x00000400 total bytes): removed
MDES (0x00001000 - 0x000002000, 0x00001000 total bytes): removed
FCRS (0x00002000 - 0x000003000, 0x00001000 total bytes): removed
EFFS (0x00003000 - 0x0000df000, 0x000dc000 total bytes): removed
BIAL (NVRAM partition, no data, 0x0000add3 total bytes): nothing to remove
BIEL (NVRAM partition, no data, 0x00003522 total bytes): nothing to remove
BIIS (NVRAM partition, no data, 0x00036000 total bytes): nothing to remove
FTPM (NVRAM partition, no data, 0x0000b380 total bytes): nothing to remove
NVCL (NVRAM partition, no data, 0x000069c9 total bytes): nothing to remove
NVCM (NVRAM partition, no data, 0x0000439b total bytes): nothing to remove
NVCP (NVRAM partition, no data, 0x0000a60a total bytes): nothing to remove
NVHM (NVRAM partition, no data, 0x00000058 total bytes): nothing to remove
NVJC (NVRAM partition, no data, 0x000051e4 total bytes): nothing to remove
NVKR (NVRAM partition, no data, 0x00005c3a total bytes): nothing to remove
NVNF (NVRAM partition, no data, 0x0000186c total bytes): nothing to remove
NVOS (NVRAM partition, no data, 0x0003dcce total bytes): nothing to remove
NVSH (NVRAM partition, no data, 0x000022d0 total bytes): nothing to remove
NVSM (NVRAM partition, no data, 0x00001de8 total bytes): nothing to remove
NVUK (NVRAM partition, no data, 0x00008bb7 total bytes): nothing to remove
PLDM (NVRAM partition, no data, 0x000043c5 total bytes): nothing to remove
TMNN (NVRAM partition, no data, 0x000001a6 total bytes): nothing to remove
GLUT (0x000df000 - 0x0000e8000, 0x00009000 total bytes): removed
LOCL (0x000e8000 - 0x0000ec000, 0x00004000 total bytes): removed
WCOD (0x000ec000 - 0x000160000, 0x00074000 total bytes): removed
FTPR (0x00160000 - 0x000210000, 0x000b0000 total bytes): NOT removed
NFTP (0x00210000 - 0x00048a000, 0x0027a000 total bytes): removed
MDMV (0x0048a000 - 0x0004ca000, 0x00040000 total bytes): removed
Removing partition entries in FPT...
Removing EFFS presence flag...
Correcting checksum (0xd9)...
Reading FTPR modules list...
UPDATE (LZMA , 0x1ce19a - 0x1ce345 ): removed
ROMP (Huffman, fragmented data, ~1 KiB ): NOT removed, essential
BUP (Huffman, fragmented data, ~85 KiB ): NOT removed, essential
KERNEL (Huffman, fragmented data, ~242 KiB ): removed
POLICY (Huffman, fragmented data, ~99 KiB ): removed
FTPM (LZMA , 0x1ce345 - 0x1df6f8 ): removed
HOSTCOMM (LZMA , 0x1df6f8 - 0x1e8bfa ): removed
FPF (LZMA , 0x1e8bfa - 0x1ea829 ): removed
The ME minimum size should be 1572864 bytes (0x180000 bytes)
The ME region can be reduced up to:
00005000:00184fff me
Setting the AltMeDisable bit in PCHSTRP10 to disable Intel ME...
Checking the FTPR RSA signature... VALID
Done! Good luck!



"original" dump:
python me_cleaner.py -S -O modified_e5550_MEINS.bin e5550_MEINS.bin
Full image detected
Found FPT header at 0x5010
Found 20 partition(s)
Found FTPR header: FTPR partition spans from 0x4f000 to 0xe6000
ME/TXE firmware version 10.0.30.1072 (generation 2)
Public key match: Intel ME, firmware versions 9.5.x.x, 10.x.x.x
The AltMeDisable bit is NOT SET
Reading partitions list...
PSVN (0x00000bc0 - 0x000000c00, 0x00000040 total bytes): removed
FOVD (0x00000c00 - 0x000001000, 0x00000400 total bytes): removed
MDES (0x00001000 - 0x000002000, 0x00001000 total bytes): removed
FCRS (0x00002000 - 0x000003000, 0x00001000 total bytes): removed
EFFS (0x00003000 - 0x00004b000, 0x00048000 total bytes): removed
FTPM (NVRAM partition, no data, 0x0000b380 total bytes): nothing to remove
NVCL (NVRAM partition, no data, 0x000069c9 total bytes): nothing to remove
NVCP (NVRAM partition, no data, 0x0000a5cc total bytes): nothing to remove
NVHM (NVRAM partition, no data, 0x00000058 total bytes): nothing to remove
NVJC (NVRAM partition, no data, 0x00003da0 total bytes): nothing to remove
NVKR (NVRAM partition, no data, 0x00005c3a total bytes): nothing to remove
NVNF (NVRAM partition, no data, 0x0000186c total bytes): nothing to remove
NVSH (NVRAM partition, no data, 0x000022d0 total bytes): nothing to remove
NVSM (NVRAM partition, no data, 0x00001de8 total bytes): nothing to remove
NVUK (NVRAM partition, no data, 0x00008bb7 total bytes): nothing to remove
TMNN (NVRAM partition, no data, 0x000001a6 total bytes): nothing to remove
GLUT (0x0004b000 - 0x00004f000, 0x00004000 total bytes): removed
FTPR (0x0004f000 - 0x0000e6000, 0x00097000 total bytes): NOT removed
NFTP (0x000e6000 - 0x000143000, 0x0005d000 total bytes): removed
MDMV (0x00143000 - 0x00017d000, 0x0003a000 total bytes): removed
Removing partition entries in FPT...
Removing EFFS presence flag...
Correcting checksum (0x9f)...
Reading FTPR modules list...
UPDATE (LZMA , 0x0bd3d8 - 0x0bd583 ): removed
ROMP (Huffman, fragmented data, ~1 KiB ): NOT removed, essential
BUP (Huffman, fragmented data, ~86 KiB ): NOT removed, essential
KERNEL (Huffman, fragmented data, ~242 KiB ): removed
POLICY (Huffman, fragmented data, ~100 KiB ): removed
FTPM (LZMA , 0x0bd583 - 0x0ce8fa ): removed
HOSTCOMM (LZMA , 0x0ce8fa - 0x0d7e0c ): removed
FPF (LZMA , 0x0d7e0c - 0x0d9a3d ): removed
The ME minimum size should be 454656 bytes (0x6f000 bytes)
The ME region can be reduced up to:
00005000:00073fff me
Setting the AltMeDisable bit in PCHSTRP10 to disable Intel ME...
Checking the FTPR RSA signature... VALID
Done! Good luck!

[SMDFlea]

Why run python me_cleaner.py it will disable the ME firmware or make it unbootable

[re1nhold]

kind of a rhetorical question.
to reduce interaction with your system.
not to make it not boot ofcourse.

So why flash a random "sibling" BIOS from here on winbond BIOS chip?
It'll replace your BIOS or make it unbootable, duh.

[re1nhold]

The E5550 don't POST to begin with. Untouched, No Power On Selftest

[re1nhold]

Got it working just now.
The board was fine.
BIOS was corrupted.
replaced successfully.
POST works.
SETUP F2 works too.
FSF262 image attached for anyone needing it.
ME may be missing. but I did it with this one.
just keep in mind it might take 1 or two minutes or so to boot.😂
But it boots on mine and might be enough to do an update .exe, etc. etc.
Jesus is LORD.

[re1nhold]

correction this image above fsf262 has me and its activated, but not latest version, it has 20 modules the latest has 28 and this above has a working BIOS
i disabled altme bit on mine, and it seems ok so far very short term.
more would be nice but the cleaner version i use has a bug it always removes 2 to 4 essential modules