- Oct 17, 2012
- MSI Z170A PRO
- HD 530
- Mobile Phone
TL;DR Clover messed up my Mac's firmware, had to remove logic board, reprogram a really tiny chip with a Raspberry Pi, countless hours wasted.
Also, I LOVE Clover...on real PC hardware. But don't boot it just for fun on your Mac, you'll maybe regret it.
I just wanted to report my experience here as I'm sure someone will try this, just like I did and really mess up their Mac.
I have read on multiple occasions that nothing will happen, even by RehabMan.
So I decided to boot Clover on my MacBook Pro 13" early 2015. I did not boot an OS and also didn't modify the settings, but decided to turn the Mac off after playing around for a bit.
After powering the Mac down, it would not boot again.
When it is powered on, you hear the chime one time and the backlight turns on. After that you will hear the second half of the chime looped infinitely. Nothing except for the SMC reset will work, every action that requires powering the Mac on will result in the loop.
To fix it, I had to fully disassemble it, remove the Logic Board and access a tiny SOIC8 chip (the chip containing the UEFI firmware) on the BACK of the LB using the POMONA 5250 clip and then dump the corrupted firmware (will explain why), then reprogram the EEPROM with a Raspberry Pi and 8 cables with a dumped original firmware I had downloaded. You cannot download every original dump for every Mac model, every dump came from forum users and I got lucky to even find one for my machine.
Then, I had to open the corrupted dump with a Hex Editor and find the Intel ME region and how long it is, copy it to the new downloaded dump (without a clean or original ME region your Mac will be unbearably slow) and also find the serial number and replace it with my own. Then I had to reprogram the chip with the new, modified ROM.
Also, the chip is so damn tiny the clip could not make proper contact and I had to physically remove plastic from the clip to further expose the contacts and hold it in place by a contraption of lego bricks and elastic bands. I had to try over an hour just to make stable contact.
All in all I spent countless hours researching and waited over a week for the damn clip ($25 btw + $4 for cables) to arrive.
8/10 experience cannot complain but wouldn't recommend.
Can you provide links for the stuff to buy and firmware ?
It could be very helpful for us.