Changing the CPU does not require a CSME firmware re-flash. The PDM erratum should also have nothing to do with SSD issues. My guess is that you re-flashed a random SLM_LP EXTR CSME firmware instead of following the CleanUp Guide on your own systemβs dump. In that case, itβs a matter of wrong CSME configuration. Attached is the latest CSME firmware region from the latest Apple EFI for your system. Re-flash the CSME region via βfptw -me -rewrite -f CSME_MB101_0163_B00_2018-06-26_07-55_D65FF99A.binβ followed by βfptw -gresetβ or use a programmer to re-flash your dump with the CSME region βreplaced as isβ via UEFITool.
Thank you very much for your reply! Because the CPU and PCH of this model are packaged together, replacing the CPU means that the PCH will be replaced together, so you need to update the ME firmware. I will try it later with the file provided in your attachment and report it to you. result. Thanks again!!! (attached CPU photo)
Ah you are right, I forgot that it is a SoC. In that case you do indeed need to re-flash the CSME firmware as well to remove old initialization data. Since Appleβs official EFI CSME firmware is Configured and not Configured+Initialized, you can do what I said above. You donβt need to follow the CleanUp Guide.
Thanks, no big deal for me, I was only surprised to get to add something myself and always assumed people found random ME and added to the thread/repo from deep dark hidden corners of the web
Ah, that system is Pre-Production and runs PRE firmware, thatβs why itβs not included in this thread. But youβre right, that firmware was indeed not in MEA and reporting those which are not in the DB is always very much wanted and appreciated as it helps understanding, research & further development. Thank you very much for your contribution and for using MEA.
Ah you didnβt tell me that before, I thought you only wanted to report something which was not at the DB. For cleaning, the proper thread is [Guide] Clean Dumped Intel Engine (CS)ME/(CS)TXE Regions with Data Initialization. No matter though as this is a Pre-Production system and we cannot discuss it here. Iβll send a pm instead.
