Anyone know how to extract a Dell bios from the ****.exe?? How to modify the ROM?

I've compared a bios with SLIC2.1 (bios 1750A01.EXE) and one with Dell M08 (SLIC20, bios 1500_A06.EXE)

I think the problem is that the bios with SLIC2.1 needs more space to make the version bytes to 01 00 02

Bios 2.1:

Code:

Offset      0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F

000B1A10         01 00 00 00 B6 02  03 E0 01 F0 0A 02 00 44     ....¶..à.ð...D
000B1A20   45 4C 4C 20 20 57 4E 30  39 20 20 20 00 57 49 4E   ELL  WN09   .WIN
000B1A30   44 4F 57 53 20 01 02 19  E0 0F F0 71               DOWS ...à.ðq

bios 2.0

Code:

Offset      0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F

0004FD30                                  01 00 00 00 B6 02             ....¶.
0004FD40   03 E0 01 B0 02 00 44 45  4C 4C 20 20 4D 30 38 20   .à.°..DELL  M08 
0004FD50   E0 02 80 00 57 49 4E 44  4F 57 53 20 04 1C E0 0E   à.€.WINDOWS ..à.
0004FD60   F0 71                                              ðq

The pure marker data are:

Code:

Offset      0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F

00000000   02 6A 4C 0D 90 51 84 AD  F4 AB F5 D1 AE 43 25 44   .jL.Q„*ô«õÑ®C%D
00000010   9D 16 54 49 E6 77 C5 58  52 55 BF 4B FD C8 3C D0   .TIæwÅXRU¿KýÈ<Ð
00000020   32 E2 DB E6 DE 3E 0E 5D  A5 CA F9 59 D7 C8 A8 99   2âÛæÞ>.]¥ÊùY×Ȩ™
00000030   79 A6 12 9D F8 03 6B 8F  A1 86 80 08 78 F9 5D 82   y¦.ø.k¡†€.xù]‚
00000040   FB E5 74 50 ED 3E 17 D5  94 AB A2 8C CD 3C 9C 0E   ûåtPí>.Õ”«¢ŒÍ<œ.
00000050   F3 68 94 E9 37 37 DD 6C  C1 89 F1 2F 54 62 C5 7A   óh”é77ÝlÁ‰ñ/TbÅz
00000060   89 C1 15 5E 97 8D 2A 97  81 07 03 95 24 93 9B C3   ‰Á.^—*—..•$“›Ã
00000070   8F 29 40 33 89 25 73 BC  44 6F AB 03 CC 7A 65 C1   )@3‰%s¼Do«.ÌzeÁ

This is the SLIC I've created :

Code:

Offset      0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F

00000000   53 4C 49 43 76 01 00 00  01 F9 44 45 4C 4C 20 20   SLICv....ùDELL  
00000010   57 4E 30 39 20 20 20 00  31 2E 30 42 4E 56 44 41   WN09   .1.0BNVDA
00000020   0E 00 00 01 00 00 00 00  9C 00 00 00 06 02 00 00   ........œ.......
00000030   00 24 00 00 52 53 41 31  00 04 00 00 01 00 01 00   .$..RSA1........
00000040   7F F6 C1 05 BE 5C 57 63  A5 8A 68 F3 6E 8F 06 FA   öÁ.¾\Wc¥Šhón.ú
00000050   AF B4 9F 68 82 23 EC 50  40 5A 73 7F EC E4 07 CB   ¯´Ÿh‚#ìP@Zsìä.Ë
00000060   DC 25 1A 9C E3 E3 66 11  E0 A5 98 06 C5 80 0A FA   Ü%.œããf.क़.Å€.ú
00000070   42 93 86 98 E7 D5 1B D4  D7 3A A4 0B EE E2 7D BE   B“†˜çÕ.Ô×:¤.îâ}¾
00000080   5F 5B 15 0C AB D0 21 DE  BF E9 B5 6E A4 57 B9 8C   _[..«Ð!Þ¿éµn¤W¹Œ
00000090   0C D2 BA 3A 69 30 76 94  71 A2 64 D7 4C D8 85 BF   .Òº:i0v”q¢d×LØ…¿
000000A0   DF A5 6A C8 DC 45 D5 4D  8C B8 8C 05 2F FC 2E 23   ߥjÈÜEÕMŒ¸Œ./ü.#
000000B0   C4 29 C5 6F 3F 29 6C 6D  57 79 0E B6 75 ED 21 95   Ä)Åo?)lmWy.¶uí!•
000000C0   01 00 00 00 B6 00 00 00  00 00 02 00 44 45 4C 4C   ....¶.......DELL
000000D0   20 20 57 4E 30 39 20 20  20 00 57 49 4E 44 4F 57     WN09   .WINDOW
000000E0   53 20 01 00 02 00 00 00  00 00 00 00 00 00 00 00   S ..............
000000F0   00 00 00 00 00 00 02 6A  4C 0D 90 51 84 AD F4 AB   .......jL.Q„*ô«
00000100   F5 D1 AE 43 25 44 9D 16  54 49 E6 77 C5 58 52 55   õÑ®C%D.TIæwÅXRU
00000110   BF 4B FD C8 3C D0 32 E2  DB E6 DE 3E 0E 5D A5 CA   ¿KýÈ<Ð2âÛæÞ>.]¥Ê
00000120   F9 59 D7 C8 A8 99 79 A6  12 9D F8 03 6B 8F A1 86   ùY×Ȩ™y¦.ø.k¡†
00000130   80 08 78 F9 5D 82 FB E5  74 50 ED 3E 17 D5 94 AB   €.xù]‚ûåtPí>.Õ”«
00000140   A2 8C CD 3C 9C 0E F3 68  94 E9 37 37 DD 6C C1 89   ¢ŒÍ<œ.óh”é77ÝlÁ‰
00000150   F1 2F 54 62 C5 7A 89 C1  15 5E 97 8D 2A 97 81 07   ñ/TbÅz‰Á.^—*—.
00000160   03 95 24 93 9B C3 8F 29  40 33 89 25 73 BC 44 6F   .•$“›Ã)@3‰%s¼Do
00000170   AB 03 CC 7A 65 C1                                  «.ÌzeÁ

The complete marker module of bios 2.1:

Code:

Offset      0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F

000B1A10      40 01 00 00 00 B6 02  03 E0 01 F0 0A 02 00 44    @....¶..à.ð...D
000B1A20   45 4C 4C 20 20 57 4E 30  39 20 20 20 00 57 49 4E   ELL  WN09   .WIN
000B1A30   44 4F 57 53 20 01 02 19  E0 0F F0 71 02 6A 4C 0D   DOWS ...à.ðq.jL.
000B1A40   90 51 84 AD F4 AB F5 D1  AE 43 25 44 9D 16 54 49   Q„*ô«õÑ®C%D.TI
000B1A50   E6 77 C5 58 52 55 BF 4B  FD C8 3C D0 32 E2 DB E6   æwÅXRU¿KýÈ<Ð2âÛæ
000B1A60   DE 3E 0E 5D A5 CA F9 59  D7 C8 A8 99 79 A6 12 9D   Þ>.]¥ÊùY×Ȩ™y¦.
000B1A70   F8 03 6B 8F A1 86 80 08  78 F9 5D 82 FB E5 74 50   ø.k¡†€.xù]‚ûåtP
000B1A80   ED 3E 17 D5 94 AB A2 8C  CD 3C 9C 0E F3 68 94 E9   í>.Õ”«¢ŒÍ<œ.óh”é
000B1A90   37 37 DD 6C C1 89 F1 2F  54 62 C5 7A 89 C1 15 5E   77ÝlÁ‰ñ/TbÅz‰Á.^
000B1AA0   97 8D 2A 97 81 07 03 95  24 93 9B C3 8F 29 40 33   —*—..•$“›Ã)@3
000B1AB0   89 25 73 BC 44 6F AB 03  CC 7A 65 C1               ‰%s¼Do«.ÌzeÁ

The module size byte is located 4bytes in front of (AB)



ANd here SLIC2.0 marker module: (1500_A06.EXE)

Code:

Offset      0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F

0004FD30                               40 01 00 00 00 B6 02            @....¶.
0004FD40   03 E0 01 B0 02 00 44 45  4C 4C 20 20 4D 30 38 20   .à.°..DELL  M08 
0004FD50   E0 02 80 00 57 49 4E 44  4F 57 53 20 04 1C E0 0E   à.€.WINDOWS ..à.
0004FD60   F0 71 87 D9 DD 3E 9F 29  83 24 D8 9E BF 36 2B 44   ðq‡ÙÝ>Ÿ)ƒ$Øž¿6+D
0004FD70   0D 97 A1 DD 54 82 1E AF  16 DD 50 2C 6D C2 36 E3   .—¡ÝT‚.¯.ÝP,mÂ6ã
0004FD80   83 A9 2F AA 09 66 22 59  23 86 EA 7E 74 56 CE E4   ƒ©/ª.f"Y#†ê~tVÎä
0004FD90   7C 43 39 29 53 8A 5B 0A  0E 85 1D DB 00 69 B2 4E   |C9)SŠ[..….Û.i²N
0004FDA0   26 8D 3B 28 10 EE 3E 52  27 D3 41 8C E9 E3 C2 7D   &;(.î>R'ÓAŒéãÂ}
0004FDB0   9B 35 F0 9C BE 25 54 6D  FD AE 22 D1 72 BC EF 94   ›5ðœ¾%Tmý®"Ñr¼ï”
0004FDC0   1C D0 99 74 46 D7 61 05  EB 4B 25 B0 44 41 FA 55   .ЙtF×a.ëK%°DAúU
0004FDD0   B7 75 97 B8 EF 0C 2A 11  94 2A 4B 4F B4 09 D8 C0   ·u—¸ï.*.”*KO´.ØÀ
0004FDE0   14 97                                              .—

Module size byte (A9) !!!

 

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Yes you're right, the link doesn't work at the moment.
I guess I got a copy on my HDD at home. Will upload it for you later....