- Sep 19, 2011
- XPS 13 9360
- UHD 620
In Cloverconfigurator in SMBIOS generate new serial and a new SmUUID and in Rt Variables check "from SMBIOS" and generate ROM.
I had same problem as you but this solved it
More specifically, don't use the UseMacAddr0 field for ROM in Clover anymore, but generate your own ROM value (either from your wifi mac address or randomly).
A few weeks back Apple made a change to their servers that places more rigorous checks on the ROM field. I got caught out by this as well, took me ages to figure out that a bug in this machine makes CLOVER set the ROM value to 00000000, which until recently went unnoticed by Apple.