@stephenw10 said in Not booting after upgrade or clean install to CE 2.7.1:

Does it support legacy (BIOS) install rather than UEFI? That would likely boot fine.

Unfortunately there is no CSM options in the BIOS. Only UEFI is available.
I would be thankful for an advice on how to troublshoot the UEFI boot.
For some reason only booting with Verbose-ON works. I do not know what does it change, but it somehow works.
I do not think it's a hardware incompatibility, because otherwise it would not boot at all.
If there is no solution and nobody can check the bug in CE 2.7.1 installation it makes no sense to continue chatting. It does not even make sense to think abou upgrading to Plus version.
Thanks for your efforts