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How can I get my casio sf4100 to start I have forgotten my password for casio sf4100

I have changed the batteries in my casio sf4100 and now it wants a password, i can't remember ever giving it one.

Posted by Jeff Newton on


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  • 6,746 Answers

I'm afraid you lost all data, but you can read it yourself. Here you can download the manual.
CASIO SF 4100 user manual User manual
start reading on page 4.
After that i think you read the manual and then set it up again.

Posted on Jul 26, 2014


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Related Questions:


How do I change passwords?

If you have forgotten the password, turn off the power supply, press start button, remove battery for two minutes, reinsert battery, turn on the power supply, and start the computer. the BIOS has forgotten the password, and is reset to the factory defaults.

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(start on laptop,,,f2,,,bios settings,,,, security,,,password off or disable it),,Remove the main battery then remove backup battery(small flat cell) wait for an hour and re install both batteries then try starting it

How do i unlock as i forgot my password

b>*Start your computer
*Keep pressing "F8" as the computer starts.
*This will enter the computer in Safe Mode.
*(When the window "Advanced Boot Options" opens, choose "SafeMode" with arrow key and confirmby pressing the Enter key, then computer enters Safe Mode.
*Once you are in the Safe mode Click "Administrator" on the Windowslogin screen.
*Take note that you have set the Administrator password before, you need toinput the changed password instead of leaving "Password" field blank.
*Then click Start > Control Panel > User Accounts > Select the accountthat is locked and change the password.
**Restart computer and login into the account you just created using your newpassword.
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The factory preset/default code is 1234. It will go back to this code when you change or remove the batteries. Insert the card and enter 1234 pin. When you get the screens that read "account balance, make deposit, or make withdrawl" press the enter key twice and enter your new pin number.
Aug 22, 2011 • Toys

Casio sf4100 pda.

there are 3 screws on the cover which allows the cover to be removed and you will find the 3 battery slots( cr2025 lithium)

manuals are on the web

How to get my computer unlocked have forgotten

If you've forgotten the BIOS password you need to short the CMOS by setting the jumpers or remove the battery.

If you've forgotten your Windows password you can download a program here and burn it to disc and follow the instructions.

Casio error 04 to 09

Hi. It means the password has not been entered. I suspect this machine has not been RAM cleared properly after the battery was changed. What MAC code did you enter when you changed the battery and initialised it?


Casio CE 3700

It sounds like this machine has a faulty battery. If the problem happened after a power cut, or the machine was stored, then this problem can occur. You will need to fully reset the RAM and start again. I wouldn't advise this until you have changed the battery. If you want to do it yourself, contact a Casio dealer and order a battery for it. Then open the register and plug the new battery in and get back to me. I can help you to clear it and recover the decimal places.


Have forgotten password and need to change to a new one.

Bios password or windows password

if bios password
  1. Turn off power
  2. disconnect power cord
  3. open case
  4. remove button cell battery
  5. press power on button to dissipate any voltage
  6. put button cell back in
  7. plug in cord
  8. reboot
  9. cmos checksum error, enter bios, set date,time,etc
If windows
password is unknown

  1. press F8 on boot
  2. select safe mode
  3. log into Administrator account
  4. no password
  5. go to start, settings, control panel, users,
  6. select your account, select change password.

Forgotten Password

Try taking the battery out, and leave it out for a while.

NOTE: All memory will be deleted.
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