Questions tagged [firmware]

A firmware is a type of software that provides control, monitoring and data manipulation of engineered products and systems.

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I'm not sure I can flash the firmware rom on Mac Pro 1,1

I'm trying to port coreboot to the Mac Pro 1,1 and I'm finding it difficult to locate any information on how to use the diag/lpc or other ports to flash firmware on the Mac Pro 1,1 or 2,1. I am ...
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MacOS Catalina 10.15.7 is causing a Kernal Panic - Forced an update to T2 chip by installing Big Sur - My machine is now bricked

So only in the last 2 weeks has my Macbook Pro 2018 starting having this kernal panic problem. I was on 10.15.7 and after disabling the power nap and vault encryption suggestions I still had no luck ...
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Problem with firmware password

Some days ago, I opened my laptop, it was doing security update. After the update, the login screen appeared and I enter my regular user/password but instead of login it asked the firmware Any idea ...
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127 views

Accidentally activated firmware lockscreen, how do I go back?

I logged out of my Macbook (pro 2019, Catalina) then after mistyping my password, accidentally hit the “recover password” button (or something along those lines, can’t remember). I do remember my ...
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Is Airpod Pro knock-off using H1 Chip?

I got my hands on Chinese Airpod pro knock-off that came with Apple logo and surprisingly same packaging with additional buds. Also to my surprise they were paired with iphone quite quickly just like ...
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Bricked iPhone can't enter DFU mode

I have and old iPhone 6s that is bricked. I connected it to my laptop and entered DFU mode successfully. Later in iTunes, I tried reinstalling the new firmware in order to repair my Bricked iPhone, ...
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19 views

iPhone 8 on iPhone 6 analytics

I have a strange issue where I have iPhone 8 on my iPhone 6 analytics. Listed in analytics as: AppVariant: 1:iPhone8,2:13. I have an iPhone 6.
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48 views

Where can I find specific Apple firmware like early 2011 SMC 1.69f3

I would like to load a specific firmware from https://support.apple.com/en-us/HT201518 My research shows the MacBook Pro early 2011 SMC 1.69f3 seems to be stable. I use links on apple website shows &...
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Can't run EFI AHT - 'Cannot load 'EFI/Drivers/TestSupport.efi'

I have three early 2013 macbook pro logic boards, one will load apple AHT (apple hardware test), the other two produce the following error booting into diagnostics: Error: 8000000000000003, Cannot ...
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39 views

MacBook Air SMC Update v1.8

MacBook Air SMC Update v1.8 This update addresses a rare issue on some Apple notebooks where a battery that has accumulated more than 1000 charge cycles may unexpectedly shut down or stop functioning. ...
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109 views

macOS Catalina firmware corruption issue still “open”?

Late 2019, there were a series of reports that the then-latest Catalina update corrupted Mac firmware and caused computers to be bricked. My computer (MacBookPro11,1) appeared to be one of those ...
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How to get past firmware lock in iMac?

My 27inch imac has locked firmware, after working ok the day before will not go into recovery mode can i bypass this, as apple say because i bought it second hand and not from apple they cant help?
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How can I undo nvram recovery-boot-mode=unused if I don't know firmware password?

While trying to get into recovery mode, I used this: sudo nvram recovery-boot-mode=unused ... hoping it'd take me directly to recovery mode. Instead, it prompts me for the firmware password. Which I ...
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367 views

Late 2012 iMac - Thunderbolt : no hardware was found

I have an Late 2012 27" iMac (iMac13,2) and somehow when looking in system report for the Thunderbolt ports say "no hardware was found.” I have tried: Endless searching to find a solution Resetting ...
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589 views

“Unable to write to the last block of the device” After Catalina OS X®

I tried installing Catalina 10.15 from an external USB drive created on windows, because from Apple store a message "Could not contact server" appeared. The setup was going great and at the end the ...
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Removing Firmware Lock

Back when I bought my me and my girlfriend a mac I also set up a firmware password and I now want to remove it from hers. I'm not sure I remember it correctly though. If it boots into recovery and ...
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89 views

Firmware Password Lock after Bootcamp Install

Tried to install Windows via Bootcamp on my computer yesterday. When the computer restarted to try and boot on the Windows partition, I got hit with the Firmware Password. Asked my IT guy what it was ...
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Is the firmware update for APFS on an older Mac on disk or NVRAM?

My 2008 MacPro3,1 is getting long in the tooth and one of the few things left I can do for it before retiring it is to set APFS as the system drive so that I can attempt to run Mojave on it. However, ...
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Do I need SEIKI SE39UY04 latest firmware for resolution to work on my Mac?

I am a bit late to the party here... I procrastinated far too long in getting the firmware updates, for my 2 SE39UY04 monitors... to the point that SEIKI no longer has them available... I find myself ...
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How can I save my carefully constructed printer presets before I have to re-install my printer?

My Brother MFC-L5750DW is refusing to print documents (worked fine this morning), and after restarting, checking for latest software and drivers (currently updating) I suspect it's time to remove and ...
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392 views

Your computer is disabled. Try again in 60 minutes. Firmware password

I need to factory reset a 2019 Mac Mini with the T2 chip. Understood this is a big challenge. Mini was caught in the "Your computer is disabled. Wait 60 minutes." boot loop using the guide at: Your ...
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Which Macs support macOS internet recovery?

I know that all modern Macs support internet recovery, but I'm not quite sure how far back that started. How can I tell if internet recovery is supported on a specific model? And when was this feature ...
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235 views

Is Mac hardware with the T2 chip vulnerable to the latest Intel CSME exploit?

Based on this exploit, are recent Macs with the T2 chip affected, I ask as I wonder how much Apple relies on its own silicon vs Intel CSME. This is a disaster, how is Intel surviving this stuff. I ...
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Firmware Password Announcer

After I set a firmware password on my mac, Every time I need to access firmware there is a loud announcer that says 'Password'. Is there any way to Disable this voice-over on the firmware password? ...
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539 views

How to update bridgeOS without internet connection?

We recently tried to update an air gapped Mac Mini 2018 with the 10.14.6 Combo Update. It failed because the bridgeOS version was too old. On an internet connected Mac it just downloads the latest ...
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Using older macOS on MacBook Pro with updated EFI firmware

If, for example, I'm using El Capitan on a MBP, I then install High Sierra on it and the firmware gets updated, will I be able to re-install El Capitan if I decide to do so later?
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Restore firmware on machine without MacOS

My daughter's Macbook Air is broken. She's a wild non-child and its likely to have been roughly treated and also left for years without charge, not updated (I told her!) and used on virus'y sites. ...
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55 views

Macbook Pro mid-2012 restarts after entering password

Macbook Pro mid-2012 restarts after entering password and gives an error after restart I'm unable to use any other boot command like Command + R etc as it leads to a screen with a lock and I've ...
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713 views

Can I install a custom OS on iPhone 5s?

I got myself an owned iPhone 5s to have some fun. Today I got extra adventurous and would like to try some "unofficial" operating systems like Android and postmarketOS. Unfortunately, a quick search ...
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How can I upgrade my firmware if I don't have macos installed?

I'm a Linux guru and have installed Windows 7 dual boot with ubuntu for my work computer but to be able to use all 8gb worth of ram I need to upgrade my firmware. Any ideas? I'm using a macbook A1342 ...
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dfu-util (from xpwn) to install iOS 12.4.1 on iPhone XS?

I was wondering if I can safely use dfu-util from xpwn to install iOS 12.4.1 (from here) on an iPhone XS. In these dfu-util instructions, the syntax to use is listed as sudo ./dfu-util <custom....
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Firmware vs. ios

I’m asking what the difference is cuz i’m having an iPad issue and there is an online company that offers services to fix an apple boot loop. I downloaded the free trial and it had me download ...
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163 views

Create firmware partition for macOS to be installed

Here is what I did. I removed my internal SSD from my MacBook and now I am using an external SSD (a Samsung SSD T5) with macOS on it. Currently I have Mac OS X 10.9.5 installed on it. I want to ...
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2k views

AirPods 2nd Gen. with firmware 2A364 dropped volume level in non-iOS Devices

When I bought new Airpods 2nd gen, the firmware it came with was 1A673. The volume level on my android phone (OnePlus 6T) when connected was quite loud and everything was good. But when I connected ...
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3k views

Can't update my Macbook firmware

Here is my very sad story. I have a Macbook pro 13" retina early 2015 (MB 12,1). My bootrom version is MBP121.0167.B07 and according to this ( https://docs.google.com/spreadsheets/d/...
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2k views

Re-enable startup chime on new Mac [duplicate]

I want to hack my iMac's firmware - or maybe that's a stupid idea, but I got to the conclusion that that would be my only option. And please note that my knowledge of coding is at the level of writing ...
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779 views

Macbook Air (mid 2012) Efi Firmware Downgrade –to original

I want to bring back my beloved Macbook Air 2012 (MBA5,2) to its 'original firmware'. I have identified the file as MBA51_00EF_B01.scap, which I extracted using unpkg over the downloadable offered by ...
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102 views

Install Linux without firmware password

I have a Late 2013 MacBook Pro with an unknown firmware password set. I don't know the firmware password because the laptop is a castoff from a company and I have no way to get the password from them. ...
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3answers
915 views

Is it possible to downgrade Boot ROM SW to try and fix unbooting Late 2012 iMac from Single User Mode?

I currently have 283.0.0.0.0 Boot ROM SW installed on my crippled Late 2012 iMac - which I upgraded HDD->SDD, tried to unsuccessfully install Mojave, then broke fusion setup, erased drives and am now ...
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9k views

How to create “firmware partition” on HDD?

I have a problem with internal hard drive in my IMac, it doesn't work, but I have an external hard drive (HDD), and I want to run MacOS on it. I successfully installed MacOS and upgraded it to Sierra....
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1answer
46 views

Can you know the macOS version from the firmware version in Macs?

I’d like to know if it’s possible to know what macOS version is installed in a Mac (such as macOS 10.14.3) if you can get the firmware version (such as in System information). I sometimes cannot log ...
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420 views

iMac Thunderbolt Firmware Issues

I am running High Sierra and am trying to use an Antelope Orion 32+ with this system through Thunderbolt. The device gets picked up in my system info and the port is in use. It is impossible for ...
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351 views

Can I run Yosemite after I install the Mojave firmware updates?

I'm very hesitantly getting ready to "upgrade" from Yosemite to Mojave because I worry that it will break things I still need. So to give it a try I've decided to install Mojave on an external drive ...
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2k views

What is the latest version of firmware for the AirPods (first generation)?

My AirPods still show a firmware version of 3.7.2 after many months. Is that the version 3.7.2 current in January 2019?
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Is there a way to update a Mac to High Sierra or Mojave if OEM SSD is unavailable?

I have a late 2013 Mac Pro that had been running Sierra before its internal SSD died. I'd like to replace the internal drive, but OWC's site indicates the following: "macOS 10.13 and later versions ...
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3answers
1k views

Why can't newer Mac hardware boot DBAN?

I have a DBAN CD )used with an external optical drive) which I have used in the past on multiple old Macs. I tried to use it on a 2018 Macbook Pro and DBAN could not be booted. Specifically, I tried ...
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1answer
1k views

Unable to update to Mojave

Where I work, there is an iMac Pro with a broken hard drive. My company doesn't want to dish out money to fix it, so I took it and installed Mac OS High Sierra on an external hard drive and booted ...
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0answers
213 views

Firmware error from Sierra to Mojave [duplicate]

I have a MacBook Pro 13-inch mid 2012 with macOS Sierra v. 10.12.6 Some technician installed Samsung SSD 840 EVO 1TB for me on this machine. There was no problem until I tried to install MacOS Mojave. ...
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87 views

It's possible to use a Mac invited account with firmware password enabled?

I have the firmware protection enabled on my Mac, but whit this property I can't use the guest account of the computer without ingress the firmware password. I'd like to avoid this password request ...
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1k views

I can't type special characters on my Mac firmware password request

I have the firmware password enabled on my MacBook Pro. I had never used it until this morning, when trying to access from another partition I have to write it inevitably to be able to do anything; I ...