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Model A1419 / EMC 2806 / Late 2014 or Mid 2015. 3.3 or 3.5 GHz Core i5 or 4.0 GHz Core i7 (ID iMac15,1); EMC 2834 late 2015 / 3.3 or 3.5 GHz Core i5 or 4.0 GHz Core i7 (iMac17,1) All with Retina 5K displays

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iMac 2015 Firmware Pasword. Feel Like I'm S.O.L on this one ... help?

Now if this was my device i would probably remember the FW PW but i bought it as a spare or repair project, screen not working no external display output hocked it up in thunderbolt mode blindly as on power on i could hear the chime and was immediately asked for hdd password ... ok fine .... try to delete hdd ... obviously i can delete the hdd if i can't access it ... , pristine condition on the outside big shame for it to stand there ... idle ..." Furniture " no need to save data "Nuke and Pave" it is .... so i cracked it open and wiped the drives ... 1TB seagate and 1 32GB SSD figuring that the drives are formatted as fusion drives

( although Fusion is convenient for speed, all it is is a fancy name for JBOD "just a bunch of drives". With fusion apparently the OS / Boot Drive and a "smart cache" lives on the SSD while the Data lives on the HDD )

Now although i wiped the drives, still don't have display so i figured i would let this project sit for a bit more so i formatted both drives as Disk1 and Disk 2, put the machine back together, powered on, it chimed and the display turned on !!!

( well i could see the backlit has come on, but that's then my real problem materialised)

FW PW is persistent ... obviously out of warranty ... its about 3 years old now,

( i miss the old magnet assembly for the front glass Better Build and still quite feasible on this model ).

Apple want to change the Mobo and to do that would be paying double what i paid for this :( i can't get past the %#*@ firmware password....

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Ive repaired these before the best thing you can do is purchase efi password blaster or, I'm not sure if I'm able to link them but you will find them with a quick google search this will crack the password for you

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Thanks Lewis ... is this the only way you know that will work ? of example since i have opened this i mac, if i remove the bios battery will it not reset ?

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Unfortunately unlike the traditional bios of a pc the memory stores data after loss of power removing the battery will make no difference fortunalty the equipment I have mentioned uses a usb port so you don't even need to disasemble the device

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