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Old 05-28-2017, 08:27 AM   #1
crowntoy99
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Default Apple MacBook Pro A1502 (820-3476-A)

helo

frinds
Apple MacBook Pro A1502 (820-3476-A)
serial c02p228mg3qt
efi password ples remove
Attached Files
File Type: rar MX25L6406E_20170528_5936.rar (3.95 MB, 659 views)
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Old 05-29-2017, 06:04 AM   #2
highpulse
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

here it is , assuming its not stolen :P
Attached Files
File Type: zip ************_MacBook A1502 820-3476-A.BIN.zip (4.49 MB, 935 views)
File Type: rar ************_MacBook A1502 820-3476-A.rar (4.13 MB, 1064 views)
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Old 05-29-2017, 07:28 AM   #3
crowntoy99
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

thank you
highpulse
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Old 09-25-2017, 12:08 PM   #4
guruji
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

are these vinafix files working and is the machine boots well
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Old 06-17-2018, 10:07 AM   #5
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

I has been try file from vinafix on model A1502 EMC2875 820-3476-A 2014-2015 and macbook slow startup and freeze if install OS.
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Old 06-17-2018, 11:24 AM   #6
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Quote:
Originally Posted by bushmann View Post
I has been try file from vinafix on model A1502 EMC2875 820-3476-A 2014-2015 and macbook slow startup and freeze if install OS.
Try this one.
Attached Files
File Type: zip 820-3476-CleanME.zip (4.20 MB, 987 views)
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Old 06-20-2018, 02:34 PM   #7
bushmann
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

I tried more versions with 138.Bxx, but still the same problem that I freeze on the first screen and no response.

The only version with 142.Bxx "works" will also freeze on the first screen, but the speaker will sound "select language for installation".
If I use the up and down keys, the language changes and I hear it, but I only see the first apple screen.
As if the graphics card did not initialize.

If I use the original BIOS, the graphics will switch to the screen where I will write that the machine was blocked.
I warn that he does not want a password.
I know how to delete the password.

Can anyone advise me what to change in original BIOS dump.

I had this problem once and I had to rewrite the original BIOS.
I paid enough money for it.

Last edited by bushmann; 06-20-2018 at 02:36 PM..
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Old 11-26-2018, 08:25 AM   #8
yashjovi
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Quote:
Originally Posted by SMDFlea View Post
Try this one.
this bios have password
do you have password
but this bios working fine but asking password
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Old 07-22-2019, 07:38 PM   #9
johnnybeast
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Quote:
Originally Posted by bushmann View Post
I tried more versions with 138.Bxx, but still the same problem that I freeze on the first screen and no response.

The only version with 142.Bxx "works" will also freeze on the first screen, but the speaker will sound "select language for installation".
If I use the up and down keys, the language changes and I hear it, but I only see the first apple screen.
As if the graphics card did not initialize.

If I use the original BIOS, the graphics will switch to the screen where I will write that the machine was blocked.
I warn that he does not want a password.
I know how to delete the password.

Can anyone advise me what to change in original BIOS dump.

I had this problem once and I had to rewrite the original BIOS.
I paid enough money for it.
Hey mate,

Try this file, I had to use this to get a Fledging SSD working on a Macbook Pro that was running 0138 EFI Bootrom.

This is EFI Bootrom revision 0151 for the 820-3476 A1502 MacBook Pro 2013/4. The ME Region is clear on it and there's no passwords set.

You must us a HEX Editor to change the serial number at block 63043B, it's currently set to 11111111111 so it will NEED to be changed.

Also, within the first few boots you will need to reset the PRAM, which is holding the P, R, ALT (Option) and CMD buttons before pressing the power button and keep holding the 4 buttons till you hear the second 'bong'. This will flush any stored passwords in the NVRAM/PRAM.

Hope this helps somebody out as much as it helped me.
Attached Files
File Type: zip 820-3576 V151 Clean SN111111111111.zip (4.28 MB, 444 views)
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Old 04-07-2020, 12:47 AM   #10
dirigjenti29
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Hi,please need bios bin A1502 emc2678 820-3476-A
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Old 04-07-2020, 12:57 AM   #11
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Quote:
Originally Posted by dirigjenti29 View Post
Hi,please need bios bin A1502 emc2678 820-3476-A
Post the bios backup
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Old 04-07-2020, 02:24 AM   #12
peste
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Quote:
Originally Posted by dirigjenti29 View Post
hi,please need good bios A1502 emc 2678 820-3476-A,thank you
try this bios, it is the bios from post# 6, if it is not ok, post the copy of your bios here, I wrote you in the post above.
Attached Files
File Type: rar 820-3476-CleanME.rar (3.86 MB, 273 views)
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Old 05-03-2020, 12:38 PM   #13
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Hey all.

Got this 820-3476-a that came to me with late display.
Chimes, but image only appears almost at the end of the bar loading of OSX.

I see flux on the SMC and bios ICs.

Would it be bios issue and needs clean me region?

Heres the bios dump.

Thanks for any help on this!
Attached Files
File Type: zip backup.zip (4.35 MB, 59 views)
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Old 05-04-2020, 12:58 AM   #14
peste
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

try..
Attached Files
File Type: rar 9.5.3.1526_SLM_PRD_EXTR_outimage.rar (3.89 MB, 172 views)
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Old 05-05-2020, 10:23 AM   #15
magneh
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Quote:
Originally Posted by peste View Post
try..
Hi Peste!
Thank you.

No , back light still only turns on near the end of the OSX loading bar...exactly the same thing.

Could it be that someone applied a 820-3476-A model SMC no?

Or this is only BIOS related?

Thanks!
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Old 05-06-2020, 03:07 AM   #16
magneh
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

I meant an SMC of a 3476-a board but from another year maybe?
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Old 05-06-2020, 04:24 AM   #17
piernov
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

What matters is the board model number. If the SMC comes from another 820-3476 board it's good. If it comes from another model you can have all sort of weird problems.
In this case 820-3536 is compatible too.
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Old 05-12-2020, 06:20 AM   #18
magneh
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Quote:
Originally Posted by piernov View Post
What matters is the board model number. If the SMC comes from another 820-3476 board it's good. If it comes from another model you can have all sort of weird problems.
In this case 820-3536 is compatible too.
Hi Piernov!
Thanks for the input. Well noted, nice to know that.

Sou in this case for a late display, thats only bios related for sure?
Have tried with the previous dump but issue persists.

Any idea?
Thanks!
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Old 01-04-2021, 12:35 AM   #19
sars2004
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

hi
please remove password from my bios backup file
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Old 01-04-2021, 08:30 AM   #20
peste
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Default Re: Apple MacBook Pro A1502 (820-3476-A)

Quote:
Originally Posted by sars2004 View Post
hi
please remove password from my bios backup file
post the bios
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