Thinkpad T42
Thinkpad T42
While booting there is a 1 battery sign and lock that appears? It stops booting at the point and the cursor is blinking. What does this mean and how to fix it?
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ajkula66
- SuperUserGeorge

- Posts: 15739
- Joined: Sun Feb 25, 2007 11:28 am
- Location: Brodheadsville, Pennsylvania
Re: Thinkpad T42
Welcome to the forum!
Your laptop is locked by a Supervisor password. You can:
a) Contact the previous owner and obtain the password.
b) Change the motherboard.
Do bear in mind that password-cracking technique discussions are NOT allowed on this forum.
Good luck.
Your laptop is locked by a Supervisor password. You can:
a) Contact the previous owner and obtain the password.
b) Change the motherboard.
Do bear in mind that password-cracking technique discussions are NOT allowed on this forum.
Good luck.
...Knowledge is a deadly friend when no one sets the rules...(King Crimson)
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
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RealBlackStuff
- Admin
- Posts: 17512
- Joined: Mon Sep 18, 2006 5:17 am
- Location: Mt. Cobb, PA USA
- Contact:
Re: Thinkpad T42
In addition to the above, this is all the help we are allowed to give you:
http://support.lenovo.com/en_US/detail. ... MIGR-59377
http://support.lenovo.com/en_US/detail. ... MIGR-59377
Lovely day for a Guinness! (The Real Black Stuff)
Check out The Boardroom for Parts, Mods and Other Services.
Check out The Boardroom for Parts, Mods and Other Services.
Re: Thinkpad T42
I have a password how do i remove this, if possible?
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ajkula66
- SuperUserGeorge

- Posts: 15739
- Joined: Sun Feb 25, 2007 11:28 am
- Location: Brodheadsville, Pennsylvania
Re: Thinkpad T42
Press F1 to enter BIOS on boot, proceed to security and change the password, it's pretty self-explanatory once you're in there.
Good luck.
Good luck.
...Knowledge is a deadly friend when no one sets the rules...(King Crimson)
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
-
cadillacmike68
- Senior Member

- Posts: 708
- Joined: Fri May 27, 2011 9:19 pm
- Location: Not on Planet Znutar (FL)
Re: Thinkpad T42
That "1 battery sign" just might be the HDD # 1 password prompt and not the computer's POST or supervisor password.
Same thing, go into the BIOS with F1 and blank out the existing PWs to "change" them to "blank".
Best sequence is to:
Power it off
Power it on
Press F1 right at the opening thinkpad screen
Enter the PW you have at the "1 battery sign" prompt
Go into the password section and change any enabled Pws to blank. that is how you clear them.
good luck.
Same thing, go into the BIOS with F1 and blank out the existing PWs to "change" them to "blank".
Best sequence is to:
Power it off
Power it on
Press F1 right at the opening thinkpad screen
Enter the PW you have at the "1 battery sign" prompt
Go into the password section and change any enabled Pws to blank. that is how you clear them.
good luck.
760LD 9547 FUBARd
T21 2647; T22 2647 4@ 900MHz, 1@ 1GHz SXGA+; T23 2647 2@ 1.13GHz, 1@ 1.2GHz SXGA+, WiFi
T30 2366-88U 2GHz; 2366-83U 1.8G; 5@ 2366-LU0/66U; 2367-KU6 FUBARd
T61 8897, 2.4GHz SXGA+; 8898, 2.4GHz; 6463, 2.4 & 2.1GHz WSXGA+; 7658, 2.5GHz; T61p, 3 more T61s
T500 2
T21 2647; T22 2647 4@ 900MHz, 1@ 1GHz SXGA+; T23 2647 2@ 1.13GHz, 1@ 1.2GHz SXGA+, WiFi
T30 2366-88U 2GHz; 2366-83U 1.8G; 5@ 2366-LU0/66U; 2367-KU6 FUBARd
T61 8897, 2.4GHz SXGA+; 8898, 2.4GHz; 6463, 2.4 & 2.1GHz WSXGA+; 7658, 2.5GHz; T61p, 3 more T61s
T500 2
Re: Thinkpad T42
Is this the image you see? 
If so, it's a hard drive password like cadillacmike68 says. It's stored on the hard drive not the computer.

If so, it's a hard drive password like cadillacmike68 says. It's stored on the hard drive not the computer.
Collection = T500 - R400 - X300 - X200 - T61 (14" WXGA+) - T61 (14.1" SXGA+) - T60 (15" SXGA+) - X40 - T43p - T43 - T42p - A30P - 600E
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RealBlackStuff
- Admin
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Re: Thinkpad T42
To get rid of it, find the password and set it to 'blank'/empty, or replace the hard disk.
Lovely day for a Guinness! (The Real Black Stuff)
Check out The Boardroom for Parts, Mods and Other Services.
Check out The Boardroom for Parts, Mods and Other Services.
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cadillacmike68
- Senior Member

- Posts: 708
- Joined: Fri May 27, 2011 9:19 pm
- Location: Not on Planet Znutar (FL)
Re: Thinkpad T42
That is a seriously cool little screen cap image there, RBSNeil wrote:Is this the image you see?
If so, it's a hard drive password like cadillacmike68 says. It's stored on the hard drive not the computer.
Niel, You clear it the same way you would clear a POP or SupPW. You need to get into the BIOS. Press F1 during a power on cycle and enter the PW you have.
Then when in the password part of the BIOS select the HDD with the PW enabled. Note if it has a user or master or both (I always use both).
If you just have the user pw change that to blanks. If you have the master or both, change the master to blanks. that will clear both PWs on the HDD. Its not rocket science, but you must have the proper PW or else the HDD becomes a nice paperweight, (or you can take the disk platter(s) out and make cool rear view mirror hangers out of them
I never could figure out what the difference b/w HSS user and master PWs is, but i have noticed this over the years:
If your POP and used HDD PWs are the same, you can enter the POP at the POP prompt and it will pass this pw along to all HDDs with the same PW! You can see it on the screed, you get the Ok, then the HDD1 Ok then the HDD2 OK and even the HDD3 Ok if you have three HDDs in the thing!
However, if you put in the suporvisor PW, even if you did not press F1 for the BIOS you need to hand enter the HDD PWs, even if they are the same as the supervisor PW.
760LD 9547 FUBARd
T21 2647; T22 2647 4@ 900MHz, 1@ 1GHz SXGA+; T23 2647 2@ 1.13GHz, 1@ 1.2GHz SXGA+, WiFi
T30 2366-88U 2GHz; 2366-83U 1.8G; 5@ 2366-LU0/66U; 2367-KU6 FUBARd
T61 8897, 2.4GHz SXGA+; 8898, 2.4GHz; 6463, 2.4 & 2.1GHz WSXGA+; 7658, 2.5GHz; T61p, 3 more T61s
T500 2
T21 2647; T22 2647 4@ 900MHz, 1@ 1GHz SXGA+; T23 2647 2@ 1.13GHz, 1@ 1.2GHz SXGA+, WiFi
T30 2366-88U 2GHz; 2366-83U 1.8G; 5@ 2366-LU0/66U; 2367-KU6 FUBARd
T61 8897, 2.4GHz SXGA+; 8898, 2.4GHz; 6463, 2.4 & 2.1GHz WSXGA+; 7658, 2.5GHz; T61p, 3 more T61s
T500 2
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