apple imac 820-2828-a bios

[kesmeseker]

ı need 820-2828-a bios dump. plase help me.

[techman1025]

Re: apple imac bios

Make sure to change serial #
Techman1025

[kesmeseker]

Re: apple imac bios

thanks

[kesmeseker]

Re: apple imac bios

not display

[techman1025]

Re: apple imac bios

Hi MINE IS 100 % WORKING .If you did the steps after the flash .



Make sure to do this steps after reflash:
Resetting NVRAM
i) Shut down your Apple Mac.
ii) Locate the following keys on the keyboard: Command, Option, P, and R.
iii) Turn on your Mac.
iv) Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
v) Hold these keys until the computer restarts and you hear the startup sound for a second time.
vi) Release the keys.
And after that... reinstall the OS!

So let say your original bios work and it stop at password ...i gave you back your orignal file with out password only . You need to run the steps after so the cloud don't reset password. If you have no display you have more then just a password problem did you try a external monitor ?
Techman1025

[techman1025]

Re: apple imac bios

Hi MINE IS 100 % WORKING .If you did the steps after the flash .



Make sure to do this steps after reflash:
Resetting NVRAM
i) Shut down your Apple Mac.
ii) Locate the following keys on the keyboard: Command, Option, P, and R.
iii) Turn on your Mac.
iv) Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
v) Hold these keys until the computer restarts and you hear the startup sound for a second time.
vi) Release the keys.
And after that... reinstall the OS!

So let say your original bios work and it stop at password ...i gave you back your orignal file with out password only . You need to run the steps after so the cloud don't reset password. If you have no display you have more then just a password problem did you try a external monitor ?
Techman1025

Ok im helping many people and i just realized you where NOT the one with passwork locked disregard post before this one . Ok does the old file work? what is exactly the problem i will try and help you.
Techman1025

[kesmeseker]

Re: apple imac bios

thanks ... working.test ok

[marlin297]

Re: apple imac bios

Make sure to change serial #
Techman1025

thank you

[killercuter]

Re: apple imac bios

how to change serial in bios imac

[SMDFlea]

Re: apple imac bios

how to change serial in bios imac

https://www.badcaps.net/forum/showpo...43&postcount=5
4.3. Apple
For 2017 and older machines, serial number is stored in Fsys store of BIOS and can be edited with hexadecimal editor. Fsys checksum needs to be fixed afterwards
Search for "ssn", edit the serial number, save, open dump in UEFITool, go to the Fsys store and write down the suggested checksum in the panel on the right. Checksum is 4 bytes at the end of the Fsys store, between one zone of 0x00 either Gaid or another zone of 0xFF, it must be written in reverse order (so last 2 characters from UEFITool must be written first).
See: https://www.youtube.com/watch?v=poA8HByYqTM

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[mxkosem]

Thanks a lot