Re: MacBook dies when installing firmware update

I couldn't find a solution for firmware upgrades crashs. But a workarround is good for me.
I got a bios file from a similar machine with Monterey, clean ME and edit serial number. Then i able to install OS 10.14+, on genuines SSD ou Nvme + Adapter, without issues.
Bios .bin is attached (don't forgot to change serial and validate F-sys to use this).
BootROM Firmware: 428.40.10.0.0.

bios moved to new thread: [url]https://www.badcaps.net/forum/showthread.php?t=100913[/url]

.Re: MacBook...

I couldn't find a solution for firmware upgrades crashs. But a workarround is good for me.
I got a bios file from a similar machine with Monterey, clean ME and edit serial number. Then i able to install OS 10.14+, on genuines SSD ou Nvme + Adapter, without issues.
Bios .bin is attached (don't forgot to change serial and validate F-sys to use this).
BootROM Firmware: 428.40.10.0.0....

Re: MacBook dies when installing firmware update

Thanks!

I know of this problem with SSD + Adapter. I used genuine Apple SSD in testing.
BIN files were ME Cleaned and FSYS is valid.
Maybe a workaround would be to get a bin already with version 428.40.10.0.0, but I believe that the brick problem would not be solved in a future needed upade.

Hello,
I have a macbook Early 2015 A1502 EMC 2835 820-4924-A.
Whenever I try to update the system the device dies after reboot. It only comes back to life if the battery is disconnected, and then connected again (energy drain). Apparently the firmware update fails.
I can install High Sierra normally, but I can't install a newer one.
I can use a disk with a newer system that was installed on another machine.
I've already tested another chip and another bios file, but no effect.
Boot ROM: MBP121.0177.B00
SMC: 2.28f7
I've tried the procedure...

Re: New Members - please post your introductions here

Hello all, I like this forum too much. I want some helps with macbooks.