10 Replies Latest reply: Sep 7, 2012 9:32 AM by jouel212 Branched to a new discussion.
__Q Level 1 (0 points)



My mac is asking me for a 6 digits System Lock pin code to peform a clean install (booting from a USB drive) .   My security pin code has 4 digits, not 6 but it seems that the screen doesn't allow me to type in only 4.


Had you seen this before?  any workaround or fixes ?


Thanks in advance

MacBook Pro (15-inch Mid 2010), Mac OS X (10.7.4)
  • wjosten Level 10 (94,210 points)

    Sounds like you have a firmware password enabled, & that's what is being asked to enter.

  • __Q Level 1 (0 points)

    Thanks for your reply wjosten.  I indeed protected my mac's firmware and was asked the code,  I chose a 4 digits code but now it asks me for a 6 digits pin code and if type only 4 digits , the 'submit' arrow or button doesn't show up.   So, in order to submit the code, it must be 6 digits but I didn't choose 6 digits but only 4. 

  • wjosten Level 10 (94,210 points)

    Well, you're gonna have to go to an Apple store to fix this. Backup before you go...they "may" erase your drive.

  • __Q Level 1 (0 points)

    Also,  If I boot up the mac using my Snow Leopard installation disk, it works and by-passes this screen which doesn't look good (safe?) to me as I can by pass the code and peform a Mac OSX clean installation.


    By the way, theare are 2 codes involved here ,  the firmware password (any character)  and the system lock pin code (only numeric digits) .


    I have no problem with my firmware password as my mac accepts it with no problem.  The problem is that system lock 6 digits pin-code when I chose only a 4 digits one.

  • Israel142 Level 1 (0 points)

    I know this is several months late, but all you need to do is change the RAM configuration and then restart the computer to remove the Firmware password. Just take 1 stick of RAM out, restart, and then put the RAM back in; problem solved.

  • ExciteWalk Level 1 (0 points)

    I think I figured out a way around it. Anyone still need an answer?

  • Shootist007 Level 6 (16,660 points)

    ExciteWalk wrote:


    I think I figured out a way around it. Anyone still need an answer?

    You keep posting this in all threads like this. Why are you doing it?


    If you have an answer that is not a link to some type of SPAM, BOT, INFECTED website why not just post it.


    Because what you are now doing is Trolling which is not allowed on this forum.

  • ExciteWalk Level 1 (0 points)

    I see where you are coming from and I appreciate that you are trying to keep these forums clean.


    But please understand, I wasn't about to type up my tutorial on a bunch of dead threads so I wanted to check. Overnight there were some interested replies, so I'm going to start a new thread with my solution and link it here. Is that ok with you?

  • ExciteWalk Level 1 (0 points)
  • jouel212 Level 1 (0 points)

    can you write it this link didnt work for me plz. just copy and paste it here....i know there is a solution but didnt work : the solution was : hold the keys on the same time command + option +Key R + KEy P and turn the the mac ON ......this its not working for me ............could you give me a solution plz thks