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This discussion about the Exx50 models. Since I only own an E7250 which is the only device I can test on, I do not know if the EFI is compatible with other models of Exx50 models. So, it would be useful if you could answer with the model you have and whether it working or not. If the EFI is not working, consider reporting the issue which I would look into. |
Replies: 21 comments 94 replies
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I confirm that this EFI works perfectly on DELL E7450, I have already been using it for two weeks even until I update to BIG SUR 11.2 as if it were a real MAC. |
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I can confirm that this works on E5450. I also have activated WiFi and did install using WiFi. Thank you for sharing! |
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I can confirm that this work on E5450. But when i try dualboot with windows, the display was dim at every time boot in windows. Can you fix that problem and update for install the macOS beta 12 ? |
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Confirming this works on E5550. Only issue I have is wifi dropping out after wake and not being able to reconnect without restarting. I'm not sure why it's doing this? Edit: Yet randomly just then, it wakes from sleep and wifi is fine. Strange. |
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I am sorry to say this. it's don't work on dell 7350 2 in 1 book. it’s stoped remaining 15 min When i install it. The installer logs show this: “verifying sharedsupport.dmg”. |
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I have just installed on E5450, only one issue so far. I have the HD5500 and 1920x1080 display. On boot I have a garbled screen but graphics acceleration is working. Not sure there is a fix for this? |
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Hi, I have used your EFI about 2 weeks now. And it works perfectly on my E7450. But I have a issues. It's about the ALC. Sometimes I can't hear the sound until I call Siri, it will work. |
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Hi, when I try to upgrade my E7450 to Monterey Beta 9, I have kernel panic. I try to reset NVRAM but not success, can you fix it in next version? |
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This is a kernel panic details on my E7450: Hope you will fix it. Good luck! |
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I can confirm this EFI config works on the E5250 without any modification. However only 1 issue I have come across is the wifi not being recognised. This aside, everything else works a treat! |
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I confirm that EFI works on E5450 , however i see below text during boot though it gets booted . I am using dual boot with windows 10 and MAC Monterey. Please help me removing these text during boot OCS: No schema for AllowNvramReset at 0 index, context ! |
The EFI has complete compatibility with the e7450. For those using the EFI, go and do a clean snapshot after enabling airportwm kext. Once rebooted, all hardware is enabled. I decided to take the legacy hardware support to fix the screen issues, works wonderfully! |
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I have a e7450 and Ventura installed. Everything works except Wi-Fi and Bluetooth. I've already tried everything suggested. Also, everytime I reboot the system, it shows warnings like I suddenly turned it down instead of doing it the right way. The thing I'd need the most is WiFi of course Edit: nevermind, everything's working, I was just doing something wrong in the config.plist. Thanks a lot for the amazing work! |
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I own an e5250 with Monterey installed. The WIFI and Bluetooth didn't work at first until I enabled them in the config.plist. Thank you for making my life easier! |
well it kind of works on Latitude E7450 but the screen is like weird there are multiples and its like half of the pixels on the image are gone idk if its my laptop of smth else but it worked fine with windows |
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Trying to install it on my E5550. (5300U w/ Intel graphics). I made the USB stick using the Windows process, pasted the contents of this EFI into the root of the drive, modified BIOS. The picker was not showing "Install MacOS" but whenever I press space bar, it would show an icon with a gear and the volume label of the drive and dmg. Whenever I start this icon, the apple logo appears, after a while a progress bar shows up, advances a bit but freezes. Tried both on Sequoia and Monterey Am I missing some step? I much appreciate any help on this. |
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On Dell Latitude E5550 it works with minor tinkering. |



I confirm that this EFI works perfectly on DELL E7450, I have already been using it for two weeks even until I update to BIG SUR 11.2 as if it were a real MAC.
Thank you very much for the EFI, the truth is that I had about a year looking for one that was as compatible as this one.