All Forums  MCUmall Forums  Novice Place  Help with EFI (bios) chip Mac

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by machack[/i] [br]Great site! [:)] I would like to get help with trying to program the EFI chip on a MacBook Pros logic board. I am tying to erase and then program a non corrupt bios .bin file to the chip while its soldered to the board. The problem is the Mac will not boot so my hope is to correct the issue with a clean install of the efi or bios. I have a GQ-4x and the chip that apple uses is a MX25L3205D. I have been able to read the chip on a couple boards but I cannot erase or write to them. The programmer gives me a error when I try to id the chip. I pulled the data pdf from online and it looks like I should connect 1-CS 2-SO/sio 4-grnd 6-clk 5-si. But no matter how i connect things I still get errors. Do I need an external power supply to power the chip? Any help would be great. [/quote]    Insert an Image File Check here to include your profile signature.