Hi i have a EFI firmware locked macbook 2011. Does anyone have a clean firmware for this mac or can remove pw? Attatched is my old bios.
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Re: Macbook A1278 EMC 2555 board 661-6158 Bios wanted
Apple Part Number:
661-6158
Manufacturer Part Number:
820-?????????????????? -
Re: Macbook A1278 EMC 2555 board 661-6158 Bios wanted
here you go
i removed a password form your file (i hope)
flash and test
also you should be able to reset nvram (security)
test and report backResetting NVRAM
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
Turn on your Mac.
Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
Hold these keys until the computer restarts and you hear the startup sound for a second time.
Release the keys.
also i think you will need to reinstall cos this clears efi password not os password but you will now be able to boot install cd or usbIm Back... sort of...
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Re: Macbook A1278 EMC 2555 board 661-6158 Bios wanted
Thank you. That file worked for me. I dont know board number. But its a i5 2011 board if that will help anyone else?Comment
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Re: Macbook A1278 EMC 2555 board 661-6158 Bios wanted
Hi I have a Question:
I have a couple (Macbook Pro's, Air's and Retina's) all with (EFI firmware locks)
I'm pretty good with component level repairs and programming etc... I generally use a
(MiniPro TL866 Programmer) to program the EFI bios chips and I have a question in regards to editing a locked EFI Chip on the mac's
After desoldering a Macbook Bios chip placing it in the (MiniPro) reading
the chip then opening the Bin File with a Hex-Editor is there a way to delete the Serial Number from the file Bin file so that I could use that same Bin file on multiple MacBooks of the same model ?
For instance when I ordered a EFI Bios chip from China all I had to do was solder it to the
macbook book and i booted without having any (Serial Number) imbedded..
If anyone could help it would be much appreciated
Here is a Picture as to what section of the Bin i'm referring to:Attached FilesComment
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Need Help for A1466 Apple MacBook Air 13" i7 1.7G EMC 2632 MID 2013
I need the original bin file for A1466 Apple MacBook Air 13" i7 1.7G EMC 2632 MID 2013 because when i tryed a bin file(for A1466 Apple MacBook Air 13" i5 1.3G EMC 2632 MID 2013) from my friend and it works but i have a problem with the trackpad and the keyboard they working in boot menu but not working after system start up
Please Help Me thank youComment
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Re: Macbook A1278 EMC 2555 board 661-6158 Bios wanted
seiiif reset nvram or reset SMC
and you're up to go !Comment
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Re: Need Help for A1466 Apple MacBook Air 13" i7 1.7G EMC 2632 MID 2013
Hwllo Friend Same Problem Here , Did You get the bios ? can you share it pleaseComment
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Can this be done for me too?? EMC 2555, not sure of the part number.Comment
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First of all thanks to all of our members who have posted previously all methods posted here.
Please leave a comment if you find something new,or have anything else to add.
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Find by serial number,model number or series
If you know the laptop serial or model number go to HP support https://support.hp.com/us-en/drivers/laptops .
Enter the serial number or model number and click submit.On the next screen you will have to enter the OS
Operating system and OS version.If... -
Hi, my laptop wont boot at all
With original bios no POST, only LED lights
With alternative BIOS from model TP500LN (flashed via programmer) the notebook works again
Some issues
A- with bios from 500LN, it won't update from bios of model 500LA (from 500LN v203 to 500LA v300)
B- If updated from 500LN version 203 to 300, the battery stops being recognized
Things I tried
1- Update / clear ME: Took the non working bios, made a backup, and did this: https://www.badcaps.net/forum/troubl...theory/trouble... -
Hello, I have an old Dell G3 3579 (ST: 2WQ7LP2-8FC8) with a newer 8FC8 BIOS password. I have successfully attached to the flash chip (W25Q128JVSQ) on the motherboard with a CH341A programmer and made several modifications using Intel FIT (e.g., allow software SPI write) without bricking. I was also able to boot to a modified GRUB shell where I attempted to edit many BIOS security related options like BIOS Guard/Lock, Flash Signature Override, ME FW Image Re-Flash, etc.
Unfortunately, some of these modifications like to Intel BIOS Guard failed because it is fused into the PCH. Also,... -
Hello,
I have a Lenovo Thinkbook 15 G2 ITL i5 Laptop (serial number: MP2BFZEF) that when I turn it on, the led on the power button lights up for 5 seconds, then goes out. There's no display and nothing happens.
So I thought it was a Bios problem.
I found 3 bios chips on the board, which I read with a bios programmer: two XMC model bios chips and a Winbond model bios chip. Each XMC model bios chip has two partitions named XM25QH128A [3.3V] and XT25F128A [3.3V]. And the Winbond model bios chip has three partitions named W25Q80BL 3.3V, W25Q80xV 3.3V and W25Q80DV 3.3V.... -
Hi everyone,
I have been doing hardware repair as a hobby for some years now and recently decided to learn about repairing laptops as a fun challenge.
I managed to get my hands on a "HP Pavilion Gaming 15-ec2523nd" notebook that only shows a white power LED and doesnt respond to anything.
After initial testing I concluded the bios seems to be corrupted since all voltages are normal and there are no shorts. HP has a feature for a bios restore from USB with winkey+B for this model. This did not work.
I have desoldered the bios chip (GigaDevice...
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