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Old 08-24-2020, 02:48 AM   #21
peste
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Quote:
Originally Posted by martha februarini View Post
Hy Peste, can you help me repair this bios ?

thanks
try..
Attached Files
File Type: rar 8.0.4.1441_1.5MB_outimage.rar (3.78 MB, 11 views)
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Old 08-24-2020, 05:17 AM   #22
martha februarini
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Still No Display and fan spinning faster than before
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Old 08-24-2020, 11:56 AM   #23
peste
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Quote:
Originally Posted by martha februarini View Post
Still No Display and fan spinning faster than before
post serial number S/N
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Old 10-11-2021, 08:58 AM   #24
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Default Re: Macbook Pro A1278 820-3115-B bio bin

can you help me?
please remove password from this file
Attached Files
File Type: rar 820-3115b.rar (3.79 MB, 9 views)
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Old 10-11-2021, 09:18 AM   #25
peste
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Quote:
Originally Posted by gpatadia View Post
can you help me?
please remove password from this file
try..
Attached Files
File Type: rar 820-3115b.new.rar (3.79 MB, 40 views)
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Old 10-12-2021, 08:09 AM   #26
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Default Re: Macbook Pro A1278 820-3115-B bio bin

thanks its working
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Old 01-18-2022, 01:31 PM   #27
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Hello! Help needed with bios password removal. Thanks in advance!
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File Type: rar m1.rar (3.99 MB, 3 views)
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Old 01-18-2022, 01:50 PM   #28
peste
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Quote:
Originally Posted by Qbanastyle View Post
Hello! Help needed with bios password removal. Thanks in advance!
try..
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File Type: rar m1.new.rar (3.99 MB, 3 views)
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Old 01-18-2022, 04:24 PM   #29
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Sorry, but not working. Fan spinns, black screen... Any idea?
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Old 01-18-2022, 04:27 PM   #30
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Quote:
Originally Posted by Qbanastyle View Post
Sorry, but not working. Fan spinns, black screen... Any idea?
Is the bios the original backup or one you found on the forum.Post the serial number on the case
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Old 01-18-2022, 06:29 PM   #31
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Should be original but someone has already played with the bios. SN from case
C1MM61PHDV30
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Old 01-19-2022, 02:45 AM   #32
peste
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Quote:
Originally Posted by Qbanastyle View Post
Should be original but someone has already played with the bios. SN from case
C1MM61PHDV30
S/N is ok .... try this ..
if it doesn't work, post the full name and model of the laptop, EMC, and motherboard model.
Attached Files
File Type: rar 8.0.4.1441_outimage.rar (3.78 MB, 13 views)

Last edited by peste; 01-19-2022 at 02:47 AM..
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Old 01-19-2022, 12:34 PM   #33
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Thank You SMDFlea and peste for Your support! It turned out that two from three bios chips I have where damaged. The third one took the bios without any errors and is up and running!
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Old 05-31-2022, 06:34 PM   #34
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Default Macbook a1278

Can someone fix this bios please, the problem is cannot installed os when,I press the options on keyboard at startup cannot detect installer it goes directly to apple
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File Type: rar MACBOOK A1278 820-3115-B EMC2554 BACKUP.rar (4.00 MB, 10 views)
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Old 05-31-2022, 10:33 PM   #35
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Default Re: Macbook a1278

Anyone can help fix the bios please
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Old 06-01-2022, 03:48 AM   #36
SMDFlea
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Default Re: Macbook a1278

Quote:
Originally Posted by String2016 View Post
Anyone can help fix the bios please
Find a 820-3115-B bios with clean ME firmware (post #32 seems ok) ,then edit it with your serial number (the one on the bottom case) and modify the fsys checksum.Watch piernovs video how to do it


https://badcaps.net/forum/showpost.p...43&postcount=5
4. DMI editing by brand

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
.

Last edited by SMDFlea; 06-01-2022 at 03:53 AM..
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Old 06-01-2022, 09:47 AM   #37
peste
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Default Re: Macbook a1278

Quote:
Originally Posted by String2016 View Post
Anyone can help fix the bios please
try..
Attached Files
File Type: rar 8.0.4.1441_outimageWX.rar (3.78 MB, 4 views)
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Old 06-01-2022, 10:11 PM   #38
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Default Re: Macbook a1278

Quote:
Originally Posted by peste View Post
try..

already tried but still same issue pressing alt options on startup not showing installer, already tried command + r for recovery not showing up
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Old 06-07-2022, 03:56 AM   #39
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Default Re: Macbook Pro A1278 820-3115-B bio bin

can you unlock my bios? macbook pro 2012
Attached Files
File Type: zip MACR2012.zip (4.21 MB, 4 views)

Last edited by andresi; 06-07-2022 at 04:05 AM..
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Old 06-07-2022, 05:20 AM   #40
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Default Re: Macbook Pro A1278 820-3115-B bio bin

Quote:
Originally Posted by andresi View Post
can you unlock my bios? macbook pro 2012
>
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File Type: zip R2012 NEW.zip (4.18 MB, 5 views)
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