remk90

Hello everybody ! I followed the very good guide about the Latitude 7440 Installation for Catalina 10.15.4 and... all is almost working ! Maybe, you can help me, i'm completly stucked . Contrary to the guide I followed , I don't have a Broadcom inside my laptop, this is another Wireless Card which seems to be supported : this is this one : Dell DW1601 ½Min PCIe 168c-0034 AR94624 A/B/G/N/AD N N N Y Y Y N (=AR5B22) I try different ways to install this one without success. I used the package that is provided in the guide : EFI 10.15.4 e7440 V2.zip I don't know where I'm wrong... could you please help me ? Thanks RemK

Hmmm, i tried Clover r5107 and clover r5117, I have a new problem now. When I boot on the USB key , I m not able anymore to install ( 1st boot to go to the utility disk aso..) any idea about this (I googled this without success) ?

Hello Hervé, Thanks for your help. Version of Clover is : Clover_v2.5k_r5103 Version I try to install : Catalina 10.15.4 Will try to put the option -disableigfxfirmware ( but first I have to find where I have to set this option ^^)

Hello guys, I would like to share my trouble. I try to install Catalina (last version 10.15.4) on my 7490 (i5 version) I followed the guide from Hervé ( tu es Français ?) but I had the same problem than Mahdiano (I was not able to boot to Setup the OS after the second reboot). So I removed the DSDT.aml file as Jake Lo suggested and then I added the 7490_BrightnessFnKeys package. Now the installation is going farest but I'm not able to boot the MacOs I had the following message about GFX ( IMG_4007.jpg) Then i have a KP ( IMG_4006.jpg) Could you please help me ? I have no more ideas now.. Thx