Having problems with your Dell Inspiron 6400 Notebook ?

Locked bios on dell inspiron 6400

\015 Ok. i got a dell inspiron at a rummage sale for 5 bucks. you can not enter it cause a grey screen comes up asking for a password. so the bios is locked. dell can not help cause its not registered to me. im told there are no jumpers or eprom chip on this laptop. i removed both the main battery and the cprom battery and left it out for one hour this did not help. I tried to put in a bunch of generic bios backdoor passwords and that did not help. does anyone know how i could get past this bios password. i dont know if it was changed or not just know there is one?\015

Answers :

Is there any clr cmos written on the board. The motherboards which do not have jumpers come with three point like solder on the board. You have to short first two manually with some wire.
If it is not there then you have to flush the bios with the bios flushing utility.
This works on the most of the Dells I have worked on. There should be some kind of jumper, usually green next to the BIOS battery. You need to have the battery in and the computer connected to power outlet. Then move the jumper and see if that resets it. Sometimes though if the BIOS is password protected then you can not clear it.
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