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Would shorting the SCL and SDA of the T480 bios chip on the board unlock the supervisor locked bios?

T430-T495, T530-T590 Series
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bravo3
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Joined: Tue Mar 30, 2010 6:36 am
Location: Paranaque City, NCR, Philippines

Would shorting the SCL and SDA of the T480 bios chip on the board unlock the supervisor locked bios?

#1 Post by bravo3 » Sat Dec 21, 2024 12:13 pm

Hi Guys, just recently acquired a T480 that I did not realize to be having a bios supervisor password enabled. Would shorting the SCL and SDA of the T480 bios chip on the board unlock the supervisor locked bios?
2 X100e's(bricked until I could figure out how to re-solder the CPU back on to board), T60p, T60 (shadow display on LCD), T420 with quad i7 work horse, T440p(quad i7) and a recent addition a souped up T480 i7 - RIP A21e & 600X
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RealBlackStuff
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Re: Would shorting the SCL and SDA of the T480 bios chip on the board unlock the supervisor locked bios?

#2 Post by RealBlackStuff » Sat Dec 21, 2024 1:12 pm

No.
But going here should improve your Happy Xmas feelings!
Lovely day for a Guinness! (The Real Black Stuff)
But I actually prefer Murphy's from Cork!
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bravo3
Posts: 40
Joined: Tue Mar 30, 2010 6:36 am
Location: Paranaque City, NCR, Philippines

Re: Would shorting the SCL and SDA of the T480 bios chip on the board unlock the supervisor locked bios?

#3 Post by bravo3 » Mon Dec 23, 2024 1:23 am

I keep seeing that site in my searches and but didn't trust it to find out more. Until your recommendation though. I got it and it will just have to relearn and apply some WD40 to my rusty DOS CMD skills to pull this off. Thanks a lot.
2 X100e's(bricked until I could figure out how to re-solder the CPU back on to board), T60p, T60 (shadow display on LCD), T420 with quad i7 work horse, T440p(quad i7) and a recent addition a souped up T480 i7 - RIP A21e & 600X
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bravo3
Posts: 40
Joined: Tue Mar 30, 2010 6:36 am
Location: Paranaque City, NCR, Philippines

Re: Would shorting the SCL and SDA of the T480 bios chip on the board unlock the supervisor locked bios?

#4 Post by bravo3 » Mon Dec 23, 2024 1:24 am

No wonder it was selling so cheap compared to others like 50% cheaper.
2 X100e's(bricked until I could figure out how to re-solder the CPU back on to board), T60p, T60 (shadow display on LCD), T420 with quad i7 work horse, T440p(quad i7) and a recent addition a souped up T480 i7 - RIP A21e & 600X
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RBaz
Posts: 4
Joined: Wed May 14, 2025 7:31 pm
Location: North Bend, Oregon

Re: Would shorting the SCL and SDA of the T480 bios chip on the board unlock the supervisor locked bios?

#5 Post by RBaz » Thu May 15, 2025 5:48 pm

When I got my X41T it was locked. My girlfriend at the time work at the local college and was able to find a program that you could boot with that would bypass the bios password and allow you to either turn off or update the password giving you full access. She was a techie that figured it out so I don't know what program or hack she used but it looked pretty simple.
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