Taqieallah94 Posted November 30, 2020 Share Posted November 30, 2020 hi .. ive dell e5540 with i7 4600u and hd 4400 .. in need to install bigsur can i? and can the efi of e5550 work on the device? Link to comment Share on other sites More sharing options...
Administrators Hervé Posted November 30, 2020 Administrators Share Posted November 30, 2020 No, E5550 is a Broadwell platform when your E5540 is a Haswell one. So they're of different chipset families, different CPU families, different iGPU families. As such, the EFI meant for an E5550 will contain configuration elements not suitable for your E5540 (graphics property injection SMBIOS, etc.) and your Hack would not work. On the other hand you can seek inspiration from existing packs and threads relating to other Haswell Latitude laptops such as the E6x40 or E7x40. By far and large, all these will share similar not to say near-identical configuration, the only differences being on the hardware accessories side (eg: LAN, audio, card reader, etc.). I strongly recommend you start here... Link to comment Share on other sites More sharing options...
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