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Can anyone help to provide OpenCore EFI files for install Sonoma on Dell Latitude E7270? I have tried to install Sonoma using EFI Ventura but it failed. @Jake Lo only provide a guide for the E7470. Usually, there is for E7270 too. Please help.

Thanks, I tried that, and it worked, but only once. After the keys are added in config.plist and then the laptop is restarted, the bluetooth is successfully activated/enabled. However, after the laptop is turned off and on again, Bluetooth becomes deactivated / disabled again. Furthermore, every time the laptop is turned on, Bluetooth has never been activated/enabled again until now.

I've done according to your suggestion, but nothing has changed. Bluetooth is still disabled or not active. Just for information, that I'm NOT using an Intel wifi card, but I'm using a Broadcom wifi card : DW1830 AC BCM943602BAED NGFF M.2 Maybe you have another way?

My Dell Latitude E7270 laptop is installed with MacOS Ventura 13.3 and boots using Opencore from @Jake Lo which I took from : https://osxlatitude.com/forums/topic/9179-dell-latitude-e7x70-clover-and-opencore/#comment-116224 Everything looks good and works normally. I updated to MACOS Ventura 13.3.1 and 13.3.1a and all functions work normally, including bluetooth. But after I updated to MacOS Ventura 13.4 my bluetooth became disabled and there was nothing I could do. My E7270 uses DW1830 AC BCM943602BAED NGFF M.2 Please help to solve bluetooth problems on E7270 with MacOS Ventura 13.4. Your kindness to help me would be greatly appreciated. Thank You.

BCM943602BAED DW1830 AC BCM943602 NGFF M.2 1300Mbps BT4.1 WiFi Wireless Network Card. Yes, I did. I selected 'Clean/Reset NVRAM'. Am I wrong? Is that a problem?

Well, I've done that, and I've got the debug files. I attach the debug file below. Please help. opencore-2020-11-17-152020.txt.zip

Thanks @Jake Lo, but after I used your config, the result is still the same as this :

1. After I enabled AppleDebug in Misc / Debug and then I booted again using USB Installer, and when the error occurred again, I didn't get the log file on the root of EFI. Is there any other way to get that log file? 2. After that, I then returned to try the second method, switching VoodooPS2 with ApplePS2Controller + plugins that's included in the EFI and changing the config like this : and the result after rebooting again is like this : only until there the boot process.

I have created Big Sur USB Installer and copied the EFI Opencore that @Jake Lo uploaded to EFI on my USB. After I booted, what appeared was like this : Is the EFI valid for the E7270 in general? Please help so I can install Big Sur on my E7270. Thanks.

Sorry @Hervé, I'm not asking about "what is airplane mode". I know what Airplane mode means. What I'm asking is how it should deactivate the airplane mode. Not what Airplane mode means, but how do you turn it off? That's what I meant by the question "Airplane mode?" Btw, all the instructions (or at least, almost all) that you have given above I have done before. And all I ask is only if I miss what I have done, because so far there has been little by little progress from the first I consulted. Maybe right, what I haven't done is tape a pin to allow it to work as @Bronxteck said. I've read the instructions about tape a pin to allow it.

Airplane mode? What kind of incorrect WWAN profile? Can you please tell me.

Of course I have my SIM card inserted. I can use it when I boot using Windows or Linux. But if I use Mac I can't use it.

But there has been little progress. The WWAN menu on System Information -> Network -> WWAN has appeared WWAN Information after I have changed the kext in the Product ID and Vendor ID fields with the contents 0x81cc and 0x413c (Dell Inc.) But until now it still can't work. Any idea?

Thank you for your instructions @Hervé but after I used that kext, my WWAN DW5816e / EM7430 still can't be used. There is no change from before.

Ok. Thanks for your suggestion. But according to what you know, it's compatible right?