So guys, after more than 2,5 as I faced this problem and absolutely nothing helped to make it working again I finally found a solution. This method will not get you fully working mac, everything that works with T1 security chip (camera, mic, Touch Bar, touchid sensor, keyboard light) won't work. But you will get working macOS, so if devices I mentioned are not critical for you than you should try this. For this method you will need a second Mac and external drive to create macOS installer and you will need a program called "open core legacy patcher". You can find different guides how to install macOS with that program, but there is one thing that you should do while installing. In opencore legacy patcher settings you should go to "SMBIOS" tab and choose "spoofing level" as moderate, get checked "allow spoofing native Macs, and then choose the model for spoofing. In my case I got MacBookPro14,3 and it didn't work without spoofing so I selected MacBookPro14,1 (the same year model, but 13' instead of 15' and...