MacBook Pro A1502 (820-3476-A) password

[farouk_1994]

The serial number in the bios you posted is different, yours is C02P4AVWG3FK , it should beC02P4AVWG3QJ

Use MacEfiToolkit to change it with software https://github.com/MuertoGB/MacEfiToolkit or watch piernovs video and edit with a hex editor.

https://www.badcaps.net/forum/troubl...24#post1622424
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

Yes i changed the SN at the end it's just as my signature but it is indeed his bios file

[sanjiv16]

hi please help efi password

MacBook A1502
SN: C02T44L1FVH3
EMC: 2835

TIA

[shiyab]

hi please help efi password

MacBook A1502
SN: C02T44L1FVH3
EMC: 2835

TIA

TRY

[sanjiv16]

TRY

thank you so much sir

[shiyab]

thank you so much sir

OK thank

[rabsonnjala]

UEFI Password removal needed . please help
MacBook A1502
SN: C02P50A1G3QR
EMC: 2875

[shiyab]

UEFI Password removal needed . please help
MacBook A1502
SN: C02P50A1G3QR
EMC: 2875

hi try

[SMDFlea]

UEFI Password removal needed . please help
MacBook A1502
SN: C02P50A1G3QR
EMC: 2875

The bios is corrupt, use a different one and copy your serial number to it

[Mugi]

hi please help efi password

MacBook A1502
SN: C02MJEDRFGYY
EMC: 2678

[shiyab]

hi please help efi password

MacBook A1502
SN: C02MJEDRFGYY
EMC: 2678

try

[Mugi]

Thank you very much sir

[TECHO TN]

Re: MacBook Pro A1502 (820-3476-A) password



the password is deleted..if the bios is ok and you write without errors it should work...don't forget the PRAM reset..

Hello my friend
I have a macbook pro a1502 mid 2014
I removed the efi password but when i wanted to reinstall os i was surprised by an icloud pin
what should i do ?

[peste]

Hello my friend
I have a macbook pro a1502 mid 2014
I removed the efi password but when i wanted to reinstall os i was surprised by an icloud pin
what should i do ?

did you reset the PRAM??

[TECHO TN]

did you reset the PRAM??

No, i don't know how i only modified my bios dump to erase the efi pass than i soldered the bios chip in its place

[TECHO TN]

did you reset the PRAM??

Please sir
Can i upload my bios original dump to clear the efi pass and icloud pin ?

[TECHO TN]

did you reset the PRAM??

Its ok friend, i solved the problem
Thank you

[curiositymaster]

Its ok friend, i solved the problem
Thank you

You can help others who have the same problem in the future by posting how you solved yours. The last time I had this experience, I used another Macbook to securely erase the SSD and it worked afterwards.

[TECHO TN]

You can help others who have the same problem in the future by posting how you solved yours. The last time I had this experience, I used another Macbook to securely erase the SSD and it worked afterwards.

Sure 😉
i only resetthe pram

[ddhlawi]

Hello
I have mac Book pro Bios password
A1502 EMC 2678
Serial : C02LRMHRFH00

[danito]

Hello
I have mac Book pro Bios password
A1502 EMC 2678
Serial : C02LRMHRFH00

Try