![]() iMac 27" Late 2013)Ħa) open your dumped ROM and click File->Search->Text tab, untick "unicode", tick "case sensitive", write "NVMe" in the search field. iMac 27" Late 2015, but works in order ones, e.g. Restart the iMac.ĥa) open RomTool (password rom) and click "Dump System Rom" (note that this does NOT work in newer Macs, e.g. Right click on the entire branch "51116915-." and select "extract as is", choose a folder to extract it as ".ffs".Ĥa) reboot your Mac into Recovery Mode by restarting your computer and after the chime holding down Command + R until the progress bar appears under the Apple logo. Click "search" button, a result will appear in the bottom as a text string, click "ASCII text "NVMe" found.". ![]() Click File->Search->Text tab, untick "unicode", tick "case sensitive", write "NVMe" in the search field. ![]() fd files and compare the differences regarding their NVMe components. If needed, you can rename them after the extraction.ģ) download UEFI Tool, open those. Right click on one of each dated differently and Extract to a Custom Location. fd file of your Mac by right click->Show Info (you are going to notice that all of them are the same size and some of them are with a different date). In each folder locate and compare the corresponding. Select them and click Open Selected Packages, after a couple of minutes the archives will be loaded. ![]() Inside you will find 5 FirmwareUpdate.pkg dated. On the context menu click Pacifist->Show Software Update Packages., wait a few minutes and the installer will be loaded. Software flashing procedure for Macs involves the following steps:ġ) download Mojave 10.14.3 (the 6GB+ from AppStore or with this)Ģ) download Pacifist, start it, click "Open Package" and select the Mojave installer.
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