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#21 |
New Member
Join Date: Mar 2021
City & State: Algeria , Blida
My Country: ALgeria
I'm a: Knowledge Seeker
Posts: 9
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![]() hi
newbie here i have a1466 with firmware password and i have this programmer https://www.xeltek.com/refurbished-p...mmer-clone-en/ https://www.xeltek-cn.com/en/sp501s.html can fix it i've already removed bios ic it's |
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#22 |
New Member
Join Date: Mar 2021
City & State: Algeria , Blida
My Country: ALgeria
I'm a: Knowledge Seeker
Posts: 9
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![]() anyone can clear firmware passcode for a1466_820_3437_b
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#23 |
Badcaps Veteran
Join Date: Dec 2016
City & State: CAMPINA
My Country: ROMANIA
I'm a: Knowledge Seeker
Posts: 6,240
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#24 |
New Member
Join Date: Mar 2021
City & State: Algeria , Blida
My Country: ALgeria
I'm a: Knowledge Seeker
Posts: 9
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#25 |
New Member
Join Date: Mar 2021
City & State: montevideo
My Country: uruguay
I'm a: Knowledge Seeker
Posts: 12
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![]() hi
i have a 820-3437-B with corrupted efi file my macbook turns on ok but it shows the folder with questionmark even with a good ssd connected, i replace the spi rom chip from a working board and it boots ok with apple logo and the bar loads up but of course it doesnt enter the system because the spi rom chip is from another mac i extracted the bin file from the damaged mac can anyone do the process for me to the bin file so i can load it back to the chip and be working? i really tried doing the process you people explained in this post but i couldnt do it because i dont have linux i would really appreciate thanks in advance |
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#26 |
New Member
Join Date: Mar 2021
City & State: montevideo
My Country: uruguay
I'm a: Knowledge Seeker
Posts: 12
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![]() nobody?
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#27 |
Badcaps Veteran
Join Date: Jun 2018
City & State: Brampton
My Country: Canada
I'm a: Knowledge Seeker
Posts: 491
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![]() Please watch this Video carefully, I learnt all from this video... Fsys & Checksum has to be corrected in order for the notebook to work. Or send me the Notebook serial # & the EMC # of your notebook, I will send you a good updated working file, Just you have to program it to the SPI BIOS & solder it.. Nothing else you have to do.
check this useful youtube video https://www.youtube.com/watch?v=poA8HByYqTM |
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#28 |
New Member
Join Date: Mar 2021
City & State: montevideo
My Country: uruguay
I'm a: Knowledge Seeker
Posts: 12
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![]() My friend thank you for answering
I understand the video you posted the problem is that i dont have linux so i cannot use those programs The bin file i uploaded is from the macbook iam trying to fix so it has the serial number inside it. The emc is 2632 and the board 820-3437-b Do you need something else? If you could do this and give me the fixed bin file ready to upload it to the chip i would be really grateful!! |
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#29 | |
Badcaps Veteran
Join Date: Dec 2016
City & State: CAMPINA
My Country: ROMANIA
I'm a: Knowledge Seeker
Posts: 6,240
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![]() Quote:
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#30 |
New Member
Join Date: Mar 2021
City & State: montevideo
My Country: uruguay
I'm a: Knowledge Seeker
Posts: 12
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#31 | |
New Member
Join Date: Mar 2021
City & State: montevideo
My Country: uruguay
I'm a: Knowledge Seeker
Posts: 12
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![]() Quote:
emc: 2632 if you could do send me a good working file so i can program it to the spi i would really appreciate it |
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#32 |
Super Moderator
Join Date: Jan 2016
City & State: Valbonne, 06
My Country: France
I'm a: Knowledge Seeker
Posts: 3,682
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![]() Why not use the file that has already been posted at the beginning of this thread…?
https://badcaps.net/forum/showpost.p...01&postcount=4
__________________
OpenBoardView — https://github.com/OpenBoardView/OpenBoardView |
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#33 | |
New Member
Join Date: Mar 2021
City & State: montevideo
My Country: uruguay
I'm a: Knowledge Seeker
Posts: 12
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![]() Quote:
because i dont have linux to write the serial number into this file and do the checksum |
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#34 |
New Member
Join Date: Mar 2021
City & State: montevideo
My Country: uruguay
I'm a: Knowledge Seeker
Posts: 12
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#35 |
Badcaps Veteran
Join Date: Jun 2018
City & State: Brampton
My Country: Canada
I'm a: Knowledge Seeker
Posts: 491
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![]() Here you go.. With your serial number (C02LPRSYF5V7) & 100% working BIOS dump & ME Region cleaned
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#36 |
Super Moderator
Join Date: Jan 2016
City & State: Valbonne, 06
My Country: France
I'm a: Knowledge Seeker
Posts: 3,682
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![]() You don't need Linux to use a hexadecimal editor.
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#37 |
New Member
Join Date: Apr 2019
City & State: CApe Town SA
My Country: South Africa
I'm a: Knowledge Seeker
Posts: 8
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![]() @Piernov, thanks so much for your video guide. My machine is up and running now. You have a new subscriber!
![]() I received an A1466 820-3437-b machine for liquid damage repair. A prior repair attempt was made and they tampered with the SPI_ROM (no idea why). I managed to get the machine to power on after doing some board level repairs but the machine would not boot to the login screen (catalina), the loading bar will reach 100% and the machine just freezes there. on High Sierra it would boot to the login screen, but as soon as you login, it freezes on the loading screen. Ordered a TL866II to re-program the bios. I battled afew hours trying to program the new chip and succeeded eventually using your guide. It took hours because I didnt have a clue how to use the programmer AND I had 3 bad SPI_ROM chips in a row (whats the chances right ?!?!), worked with 4th IC from donor board. Thanks so much! Last edited by Yamato; 07-02-2021 at 08:16 AM.. |
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#38 |
New Member
Join Date: Apr 2019
City & State: CApe Town SA
My Country: South Africa
I'm a: Knowledge Seeker
Posts: 8
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![]() For those of you who want to use the TL866II+ programmer under Linux.
I got it to work under ubuntu. https://systemembedded.eu/viewtopic.php?t=44 |
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#39 |
New Member
Join Date: Sep 2021
City & State: TUNISIA
My Country: sousse
I'm a: Knowledge Seeker
Posts: 2
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![]() A1466 820-3437-B
AFTER flash dump just sound no display ![]() |
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#40 |
New Member
Join Date: Jun 2012
City & State: chihuahua
My Country: mexico
I'm a: Knowledge Seeker
Posts: 6
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![]() Hi, can someone help me to unlock this dump of this macbook air 1466 emc 2632 820-3437-b , it is locked when i try to install so, thanks
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