Catalina bricked my 2015 MacBook Pro. What to do now?

I live in Glasgow. It's a small town. The tech has not seen the problem before!

Not helpful @PhanHuy_vn! Read my post ... properly

Okay, but while the mac already screwed up, why don't you try it, three out of four is not bad enough.

Thanks 1984bb

Great description of the issue, thanks for sharing. Looking forward to knowing the outcome as I'm in the same boat. Please update this thread when you know more.

Cheers!

You should get in touch with Apple Support. Apple does not read this forum, it merely moderates it.

Hi Jean-François,

Would you mind sharing the tutorial (même en français) ?

hi iyou can find the tutorial here https://uptobox.com/em7im31n79do

C'est en français et c'est avec l'aide de Stef95 c'est les emails, j'espère que ça pourra t'aider :)

hello good luck, I hope you will succeed.

And sooooo, finally, the diags is : logic board needs to be replaced, for ~$750.

So DIY flash reprogramming it is going to be.

since mine is an iMac. I have solder it!

See how Risitas went through the Catalina upgrade : https://www.captiongenerator.com/1608562/Risitas-upgrades-to-Catalina

Thanks for the detailed answer.

I guess It worths to give a try to this route.

hope it works for me too.

I would appreciate it if you help me through this.

Hello Bro! You should reflash the EFI section in an unofficial service center ;)

Same here, MBP late 2012 totally bricked. I tried everything but no success. Black screen, fans running, no logo, no folder ... nothing. Contacted Apple Support and only solution is service. 🤦🏻‍♂️

same problem with my macbook air mid 2012