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 1 
 on: Today at 02:03:41 AM 
Started by MacEFIRom - Last post by Wurlitzer1
Hi i've tried it and i'm having troubles with the sudo part of the magic

In terminal, ExtractAndPatchEFIFiles.sh script work well but the second part wont work.
I have the following message in terminal:

Ordinateur-Pas-Cher:~ jean$ sudo/Volumes/RamDisk/UpdateEFIiMac51-iMac41.sh
-bash: sudo/Volumes/RamDisk/UpdateEFIiMac51-iMac41.sh: No such file or directory
Ordinateur-Pas-Cher:~ jean$

Ordinateur-Pas-Cher is the name of my iMac.

the script refer to this folder:

updatesdir2="/System/Library/CoreServices/Firmware Updates/iMacEFIUpdate"

but there is nothing in the /System/Library/CoreServices/Firmware Updates directory.

is it normal?


thanks for your help

 2 
 on: December 05, 2019, 09:47:27 PM 
Started by robertanthony - Last post by robertanthony
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 3 
 on: December 05, 2019, 07:59:10 PM 
Started by MacEFIRom - Last post by GuilleCSGO
Hi GuilleCSGO  :-)

I've tried to apply your fix because I'm in the same boat as the others. The 5530 error. Your fix looks like it's trying to work but is having trouble finding/copying certain files, so isn't completing the process. At least for me anyway. Is it possible you can double-check those instructions, or perhaps let me know what I can try at my end?

I'd love to install that 4 gigs of ram.

Thanks so much!


Hi all,

I have developed a workaround to avoid error 5530. Take a seat!

STEP 1 - Download EFI updates from Apple


STEP 2 - Remame downloaded .dmg

  • Efi update 1.1: iMacFirmwareUpdate.dmg -> rename to -> iMacEFIiMac41.dmg
  • Efi update 1.2: iMacFirmwareUpdate1.2.dmg -> rename to -> iMacEFIiMac51.dmg

STEP 3 - Run iMac41-iMac51 Firmware Tool

  • Run it as usual. It will report error 5530 as before and it will create on desktop a RamDisk volume. DO NOT EXPULSE IT!

STEP 4 - Copy files to RamDisk

  • Select "iMac41-iMac51 Firmware Tool.app", right click and then click on "Show packet content"
  • Copy the following files to "/Volumes/RamDisk": ExtractAndPatchEFIFiles.sh, iMac41EFIUpdater.patch, iMac51EFIUpdater.patch and UpdateEFIiMac51-iMac41.sh.
  • Copy also the two downloaded .dmg from Apple: iMacEFIiMac41.dmg and iMacEFIiMac51.dmg

STEP 5 - Lets do the Magic

  • Open a terminal and drag and drop on it the ExtractAndPatchEFIFiles.sh script. Then run it and wait until everything finish
  • Open a terminal, type sudo and then drag and drop the UpdateEFIiMac51-iMac41.sh script: sudo /Volumes/Ramdisk/UpdateEFIiMac51-iMac41.sh. Then run it and wait until everything finishes (at the end it should report that return code is 0, which means that everything worked correctly).

STEP 6 - Reboot

  • Shutdown the iMac
  • Turn it on and keep pressed power button until the iMac light ENDS blinking
  • You will hear a BEEP sound
  • The iMac will start the EFI update (a progress bar should be displayed)
  • Wait the EFI update to complete and….. Voila!

I was too sad when after upgrading the CPU of my old early 2006 iMac I saw the error 5530 when trying to upgrade the EFI in order to achieve 4GB of RAM that I said "You MUST find the solution!". So this is it! I relly hope this guide can help all of you guys to upgrade your iMacs!!





Hi Cuban,

I'm SO sorry!

You are totally right, there was something wrong with my instructions. After checking it I have discovered  the Efi update 1.1 link was not the correct one.
I have corrected my original post, so please try to download Efi upadte 1.1 from the new link and try again the procedure!

 4 
 on: December 04, 2019, 04:00:01 PM 
Started by MacEFIRom - Last post by cuban
Hi GuilleCSGO  :-)

I've tried to apply your fix because I'm in the same boat as the others. The 5530 error. Your fix looks like it's trying to work but is having trouble finding/copying certain files, so isn't completing the process. At least for me anyway. Is it possible you can double-check those instructions, or perhaps let me know what I can try at my end?

I'd love to install that 4 gigs of ram.

Thanks so much!


Hi all,

I have developed a workaround to avoid error 5530. Take a seat!

STEP 1 - Download EFI updates from Apple


STEP 2 - Remame downloaded .dmg

  • Efi update 1.1: iMacFirmwareUpdate.dmg -> rename to -> iMacEFIiMac41.dmg
  • Efi update 1.2: iMacFirmwareUpdate1.2.dmg -> rename to -> iMacEFIiMac51.dmg

STEP 3 - Run iMac41-iMac51 Firmware Tool

  • Run it as usual. It will report error 5530 as before and it will create on desktop a RamDisk volume. DO NOT EXPULSE IT!

STEP 4 - Copy files to RamDisk

  • Select "iMac41-iMac51 Firmware Tool.app", right click and then click on "Show packet content"
  • Copy the following files to "/Volumes/RamDisk": ExtractAndPatchEFIFiles.sh, iMac41EFIUpdater.patch, iMac51EFIUpdater.patch and UpdateEFIiMac51-iMac41.sh.
  • Copy also the two downloaded .dmg from Apple: iMacEFIiMac41.dmg and iMacEFIiMac51.dmg

STEP 5 - Lets do the Magic

  • Open a terminal and drag and drop on it the ExtractAndPatchEFIFiles.sh script. Then run it and wait until everything finish
  • Open a terminal, type sudo and then drag and drop the UpdateEFIiMac51-iMac41.sh script: sudo /Volumes/Ramdisk/UpdateEFIiMac51-iMac41.sh. Then run it and wait until everything finishes (at the end it should report that return code is 0, which means that everything worked correctly).

STEP 6 - Reboot

  • Shutdown the iMac
  • Turn it on and keep pressed power button until the iMac light ENDS blinking
  • You will hear a BEEP sound
  • The iMac will start the EFI update (a progress bar should be displayed)
  • Wait the EFI update to complete and….. Voila!

I was too sad when after upgrading the CPU of my old early 2006 iMac I saw the error 5530 when trying to upgrade the EFI in order to achieve 4GB of RAM that I said "You MUST find the solution!". So this is it! I relly hope this guide can help all of you guys to upgrade your iMacs!!





 5 
 on: December 04, 2019, 07:15:11 AM 
Started by Rominator - Last post by overshoot
That's awesome! Thanks for the info!!!

 6 
 on: December 03, 2019, 03:56:56 PM 
Started by netkas - Last post by imrazor
I wanted to report partial success flashing my Sapphire HD 7950. The model I have is the "Dual-X fans w/ Boost", or SKU 11196-16-20G. This is one of the models with a non-reference port layout, with 2xDVI, 1xDP (*not* mini-DP) and 1xHDMI.

I tried several times to 'roll my own' ROM, and each time met with failure. Initially it was because I used device ID 697a, but even after correcting for that I couldn't get a boot screen. Then I found that my ROM had a checksum of 0x0, which was causing the python script to fail. So I had to change this line in fixrom.py:
Code:
self.data[-1] = chr(0x100 - sum)

to this:
Code:
self.data[-1] = chr((0x100 - sum)%0x100)
Even after making these changes, the card would not display boot screens and would always show as '7xxx' in 'About this Mac.'

Finally, I combed through the thread looking for someone who had had success with my model. I found Post #441 by JoepVK where he reported that it worked, but had issues with DisplayPort. I flashed his modded ROM and had a similar outcome.

I have similar issues with HDMI, but DVI works fine for me. That's good enough for me to move on with my life. Thanks @JoepVK...

 7 
 on: December 02, 2019, 12:03:08 AM 
Started by robertanthony - Last post by robertanthony
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 8 
 on: November 30, 2019, 08:19:33 PM 
Started by robertanthony - Last post by robertanthony
If you're wondering where to buy CBD vape juice, you've come to the right place. At VAPPORA, we know that many of our customers prefer to get their daily serving of hemp in a vape juice form. For that reason, we've created an enormous line of exceptionally tasty CBD oil e-liquids. In fact, many of our customers believe that we have the best CBD e-liquids on the market today.


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 9 
 on: November 30, 2019, 04:54:59 PM 
Started by Rominator - Last post by NOTNlCE
Check here. Boot screens have been achieved with aftermarket PC cards for iMacs. https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/

 10 
 on: November 30, 2019, 02:40:19 PM 
Started by MacEFIRom - Last post by GuilleCSGO
Hi all,

I have developed a workaround to avoid error 5530. Take a seat!

STEP 1 - Download EFI updates from Apple


STEP 2 - Remame downloaded .dmg

  • Efi update 1.1: iMacFirmwareUpdate.dmg -> rename to -> iMacEFIiMac41.dmg
  • Efi update 1.2: iMacFirmwareUpdate1.2.dmg -> rename to -> iMacEFIiMac51.dmg

STEP 3 - Run iMac41-iMac51 Firmware Tool

  • Run it as usual. It will report error 5530 as before and it will create on desktop a RamDisk volume. DO NOT EXPULSE IT!

STEP 4 - Copy files to RamDisk

  • Select "iMac41-iMac51 Firmware Tool.app", right click and then click on "Show packet content"
  • Copy the following files to "/Volumes/RamDisk": ExtractAndPatchEFIFiles.sh, iMac41EFIUpdater.patch, iMac51EFIUpdater.patch and UpdateEFIiMac51-iMac41.sh.
  • Copy also the two downloaded .dmg from Apple: iMacEFIiMac41.dmg and iMacEFIiMac51.dmg

STEP 5 - Lets do the Magic

  • Open a terminal and drag and drop on it the ExtractAndPatchEFIFiles.sh script. Then run it and wait until everything finish
  • Open a terminal, type sudo and then drag and drop the UpdateEFIiMac51-iMac41.sh script: sudo /Volumes/Ramdisk/UpdateEFIiMac51-iMac41.sh. Then run it and wait until everything finishes (at the end it should report that return code is 0, which means that everything worked correctly).

STEP 6 - Reboot

  • Shutdown the iMac
  • Turn it on and keep pressed power button until the iMac light ENDS blinking
  • You will hear a BEEP sound
  • The iMac will start the EFI update (a progress bar should be displayed)
  • Wait the EFI update to complete and….. Voila!

I was too sad when after upgrading the CPU of my old early 2006 iMac I saw the error 5530 when trying to upgrade the EFI in order to achieve 4GB of RAM that I said "You MUST find the solution!". So this is it! I relly hope this guide can help all of you guys to upgrade your iMacs!!




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