Question about Lenovo 3000 N200 Notebook
If you need to remove the keyboard ...
there's a manual for this.
you start with the pannel with the on/off button, best to start on the right side with a flat screwdriver and pull it off. make sure the screen is pushed back far enough because the silver coverage of the screen screws goes of, too.
then you take off the keyboard, be gentle. first unwind the two black screws at the top. there are four of them, leave the ones on the blue circuit board alone.
when removing the keyboard be careful not to pull it off too qouikly, because the connection line is pretty short. to gett the line off, there are two grey handles on each side od the connection box on the circuit. push them towards the screen gently to unhook the connection line.
gist a question: where is the battery, or rather: what the hell does it look like?
on lenovo forums someone said that to reset the cmos, you need to circuit the contacts of the black and white cable next to the hdd. i thought the lead to the cmos, but now i saw the lead into the screen. so how exactly did he circut the cmos on those contacts?
Posted on Feb 21, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
The most common way that we know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing the Cmos battery for 30 minutes from the motherboard.
Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the
BIOS/CMOS settings for the motherboards PROM chip. So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased.
cmos battery Under the keyboard or bottom of laptop If you are working on a laptop computer the location of the dipswitch (almost never a jumper) can be under the keyboard or on the bottom of the laptop in a compartment such as the memory compartment.
Although on some motherboards the Cmos battery is soldered in
if you have no joy
click start type cmd press enter
At command prompt type debug
you will get a - prompt where you can type the following (<enter> means press enter, not type enter*)
MOV AX,0 <ENTER>
MOV AX,CX <ENTER>
OUT 70,AL <ENTER>
MOV AX,0 <ENTER>
OUT 71,AL <ENTER>
INC CX <ENTER>
CMP CX,100 <ENTER>
JB 103 <ENTER>
INT 20 <ENTER>
<ENTER> just hit enter on this line
Basic BIOS password crack - works 9.9 times out of tenhope it helps
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Remove a small coin sized CMOS battery to store all BIOS settings along with the password. To reset the password, unplug the PC, open the cabinet and remove the CMOS battery for approx. 15-30 minutes and then put it back. It'll reset all BIOS settings as well as the password and you'll need to re-enter all settings.
Under the keyboard or bottom of laptop - If you are working on a laptop computer the location of the dipswitch (almost never a jumper) can be under the keyboard or on the bottom of the laptop in a compartment such as the memory compartment.
If it fails, then try to remove the battery for at least one hour.
click start control panel Open User Accounts in Control Panel. On the Users tab, click the name of the user whose password you want to change, and then click Reset Password. In New password and Confirm new password, type the new password, and then click OK. Notes You can change passwords only for local computer accounts, such as guest, administrator, or accounts you create for your computer. You cannot change your network logon password in User Accounts. To change your own password, press CTRL ALT DELETE and then click Change Password
hope this helps
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