ACPI modded in 8710w bios <link removed> My ACPI bios modded bios does not work It seems that I'm not able to decompile and recompile the DSDT correctly. It is strange because this modded table works if loaded with asl /loadtable. I noticed that recompiled table is smaller than original one. I'll try to look more into it. Are there any ideas why the table is no recompiled correctly ?
I've modded 8710w BIOS as nando4 asked me. I've tested it and it works correctly. here is the link w w w . s e n d s p a c e . c o m / f i l e / w h 1 i r x If somebody interested I can post my tools for modding and a quick tutorial.
I analyzed ADDC V3 and the code supplied by Relay on this forum. So I made a tool that can unpack and compress HP BIOSes for laptops like 8710w, 6910p etc. BIOS contains several compressed parts and some special part called ROM block by ADDC. My tool can manage this compressed parts. Here is an example of such parts in a BIOS: Code: 65556; 10014; 2; 1; 14; 1; 112; 96; 20000; POST 65672; 10088; 2; 1; 14; 1; 65056; 43838; 20100; POST 109530; 1ABDA; 2; 1; 14; 1; 2873; 2231; 31000; SETU 111781; 1B4A5; 2; 1; 14; 1; 65536; 33595; 40000; KBC 145396; 237F4; 2; 1; 14; 1; 7616; 3756; 60000; MESS 149172; 246B4; 2; 1; 14; 1; 2584; 1383; 9D000; OSBI 150575; 24C2F; 2; 1; 14; 1; 2950; 1238; 9DC00; NVID 151833; 25119; 2; 1; 14; 1; 65536; 32193; E0000; ROME 184046; 2CEEE; 2; 1; 14; 0; 65536; 51739; F0000; F000 235805; 3991D; 2; 1; 14; 1; 228784; 122003; 40000; F10_ 357828; 575C4; 2; 1; 14; 1; 40448; 25522; 40000; MEBX 383370; 5D98A; 2; 1; 14; 1; 85753; 46013; 65000; DSDT 429403; 68D5B; 2; 1; 14; 1; 131072; 68405; A0000; SMM2 497828; 798A4; 2; 1; 14; 1; 30208; 21113; D0000; MBA 518961; 7EB31; 2; 1; 14; 1; 28160; 21392; D1000; UNDI 540373; 83ED5; 2; 1; 14; 1; 65536; 23822; 10000; P16X 564215; 89BF7; 2; 1; 14; 1; 4305; 2881; 10000; TPM 567116; 8A74C; 2; 1; 14; 1; 8253; 3172; 200000; SEC3 570308; 8B3C4; 2; 1; 14; 1; 57856; 47771; C0000; G84_ 618099; 96E73; 2; 1; 14; 1; 57856; 47754; C0000; G84N 665873; A2911; 2; 1; 14; 1; 59904; 48568; C0000; G92_ 714461; AE6DD; 2; 1; 14; 0; 7574; 2689; 90000; HPLO columns are the following: Code: offset; ofset in hex; header version; reserved; more bytes; unpacked length; packed length; target address; description For more information you can look into documentation of ADDC Here are the most intresting parts for me: DSDT - DSDT ACPI table. Can be used to configure fan behaviour. HPLO, NVID, OSBI - different logos. Their format is 4bit RLE compressed BMP G84, G84_, G92 are video bioses for different video cards. Currently my tool can do two things: * Unpack bios. HPUnpack <BIOS File>. There will be a lot of files like 90000_HPLO.bin and 90000_HPLO.dec.bin. First are compressed sections without headers, second decompressed sections. * Replace a section. HPUnpack <BIOS File> replace <Targed Address in hex like in the previous table> <replacement file>. Check that <replacement file> is named differently from the decompressed section or it will be replaced and integrated incorrectly. I tested it on 8710w and 6910p bios, I managed to replace images, video bios, dsdt table. There is the following strange behaviour with dsdt table editing. If you decompile dsdt with asl.exe and compile it back, the resulting file will be less than source file. So if you want to edit the dsdt you should do the following: * decompile it * recompile it * compare result with source file * only the ending should differ * cut this ending and store it somewhere * edit the decompiled source * compile it * add previously stored ending to compiled file * replace the dsdt in the bios with resulting file There is also an assumption that rom block begins at offset C8BDC hex. Before editing the bios you should look at this offset and check that this is the first not FF byte and a lot of bytes before it are FF. Current version is beta and needs more testing, I'll post the sources of my tool on github after some cleanup of the code. Sources are in C#. Here is the link h t t p : / / w w w . s e n d s p a c e . c o m / f i l e / k y h 7 a 1
Hi, I have tried changing a logo in my 6820s BIOS. The changes which I made, are hex edit the palette of the bmp. So same size, but more compressable because the palette is only 2 colors (all FFFFFF and one 000000) It works ok (I haven't flashed) but when I decompile the new rom it has these changes: 1) The logo (obivusly) 2) Romblock: The original one: 19_FFF65366_ROMBLOCK_ROM (414.567 bytes) The new one: 19_FFF6539F_ROMBLOCK_ROM (414.624 bytes) And the diffs are extra FFs just before the romblock starts (the one in offset C8BDC). In new rom.bin the offset C8BDC looks like the original one Is this reasonable? Thanks
I think so. ADDC uses different algorithm to extract the romblock. It includes all the FF between last section end and C8BDC. My tools skips them. Also compressed section size can differ even if size of the logo is the same, because different data comresses differently. But I recommend to have a USB FDD with recovery floppy.
Ok, I will modify the date of the BIOS and I will try... Someone knows where to find the latest X1350 bios? Thanks
See post #1441 on next page for a success outcome @zerg32, a single byte change to 20100_POST.dec.bin & saving it as 20100_POST_new.bin then replacing it in original BIOS with correct syntax hpunpack 68YTT.BIN replace 20100 POST 20100_POST_new.bin creates new compressed 20100new.comp.bin which is 1 byte shorter (ABB8) then original compressed 20100_POST.bin (ABB9) but the difference in hex are plenty. Would that be expected? Would one byte change make such difference to the compression? If the size was the same of the newly compressed module (shouldn't it?), then hex replacement in main BIOS would be easy... Also comparing original 68YTT.BIN to newly created newBios.rom, the are many differences also BEYOND the 20100new.comp.bin section (something I would not expect?! or maybe yes, if the replacement module is different size then original?) But comparing 2 folders (one unpacked original BIOS 68YTT.BIN - second unpacked newly created newBios.rom) shows ONLY the edited modules being different (which is promising...) sebus
I have flashed my mod, and it worked... I moded the 6820s BIOS for ATI of TTAV (SLIC2.1, SPLon, whitelist removed): - Hex edited the palette of the intel log to make it black and white - Changed the date of the bios to a more current one The results: It flashed correctly It booted correctly The new BIOS date was correct The intel logo was a white square, I will have to look more closely (As I hexedited it by hand...) Some suggestions for hpunpack (If you don't mind...) In the instructions posted here, is missing the parameter 'name' for the replace action. It should check for the argument first, if you missed one it crashes... cheers
Hello for all i have a question i have this motherboard dc5100 hp rompaq. I would modify the bios with slic 2.1 wher is the name of tool for mod it? thankyou