Looking for Thinkpad 770 bios file

Don't ask how to hack password. (BIOS Passwords)
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Poju
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Hi i'm new here and here is my problem.

I screwed my bios chip, unsoldered it for reprogram, but i freaking lost it. Chip is Atmels at24c01a (if i remember right) I think i can found replasement pretty easy, but i need get bios file somewhere

If i have understod right bios file in update disk is compressed and i need to decompress it before i can program new chip. So question is how? Or is there uncompressed bios image for TP770 somewhere?

Btw if there is way to uncompress that file wich one is that $*.fl1 or $*.fl2

Why oh why i didn't made backup of my bios before :roll:
Poju
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Looks like i can get my hands on 77ED and that has same bios as my 770.
I hope i can get WinPhlash to dump bios from it and use that.

My only consern is this little note from ibm's site "- All references to Slave Controller updates pertain to the ThinkPad 770E/ED systems only, not the ThinkPad 770 systems which will not allow for updates."
Sharedoc
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Just curious. How are you going to solder the chip back?
Poju
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Sharedoc is it u from murobbs?
I really enjoyed all your experiments and overclocking topics there. (back in AMD K6 days)

Anyway soldering chip back is easy part. I found original chip, but it has losed one leg, but i still managed solder it back. I had to build bridge to side of chip to make it work. Not really useful with bad data, but wanted to see if it could be done.

I have build theree programmer, but seems that i cant make any of them work(is it my TP600 LPT port or a'm i just doing something wrong).
I ordered programmer from England wich works with ponyprog so that should resolve that part.

For now i soldered cable(made from ide cable) on to motherboard to ease my testing. I bought ST24C01B1 chip and hope that it works, down side is that it's two times bigger than AT24C01A, but it could be soldered to mobo. If it dont fit there i must place it somewhere else with cable.

I still haven't found raw data bios image so if any of u have it please tell me.
Poju
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http://www.cgsecurity.org/cmosbackup-1.1.zip

I found this from cgsecurity and now i'm wondering is this TP770_HUGO_HUGO file in that zip image i have looked.

Is there way to verify it?
Poju
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Ehh this post was just odd and useless.

While waiting for programmer i'm looking that bios image.
Hope i get it soon, kids in house and parts lying around is not good thing....
Poju
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How stupid human can be??? :oops:

I tought that i was after right chip, but all the time i have been soldering and unsoldering that freaking security chip, i tought that was same thing as bios chip :oops:

Anyway TP770 has same 28F004 bios chip as TP600 so maybe it helps Sharedoc to find dead mobo with that chip.

Programmer i ordered is useless coz it was cheapest at ebay and do not support 28F004 chip. This proves old saying right Stupidity costs :D

I'm still looking that bios image. Looks like it is cheaper to take chip and go to local electronics shop to get it flashed than get better programmer.

Hope that i can unsolder it in one peace.....
Sharedoc
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Yes, I wrote in murobbs and still do so sometimes.

Have you considered possibility of upgrading the motherboard to 600E or 600X. Is the form factor the same?
Poju
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Motherboard from 600 series don't fit i'm afraid, but i bought whole tp770 with broken screen, so my broblem is solved :D

Anyway when i get that machine i have extra mobo with 28F004 bios chip if u still need it.

If anyone has free mmc1 p2 prosessor i'm intrested
apple_rom
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>I'm still looking that bios image.
Hm - is a problem? Extract to diskette your bios-files. File with size=512kB is bios image.
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