tryit

I am able to boot with Sonoma, however with the same EFI can't boot to Sequoia installer / looping . Do I need to use Sequia boot pack ?

Correct, I wasn't aware of that. A few years ago, I downloaded the Monterey bootpack and it worked flawlessly.

It's working now , I did not patch as your opening guide and has no problem with Monterey for years . Is it because utilize Kaby Lake HD620 iGPU id 0x5916 now ? Thank you

still no luck here and looping, I use Sonoma boot pack #5 and latest Clover r5173 . The boot pack # 5 no longer has 3 items (anyway my E7270 always with Intel card ). The Clover r5173 has no SMChelper under recommended UEFI driver so I manually copy . Please see attached EFI EFIE7270.zip

@Hervé thank you for looking this further, noob question : can we do pre blocked and patch kext on EFI boot pack ? what happen if we leave these pre blocked and patch kext on EFI after installed ?

@Hervé I am trying fresh install Sonoma on external hard drive with Clover r5167 as attached EFI / following your guide however is looping . Please advise. Thank you E7270 SONOMA.zip

Not sure why on the lastest Monterey 12.7.6 , make my BT Intel 8260NGW disable. So I add IntelBTPatcher.kext, IntelBluetoothFirmware.kext, BlueToolFixup.kext and update Lilu.kext to 1.72. Now works again.

@Herve, could you please advise? I'm still running the latest version of Monterey (12.7.6), and I've noticed that Bluetooth no longer works. The Bluetooth toggle can be turned on, but the status always shows Off. I'm not sure when this started because I rarely use Bluetooth. My Wi-Fi/Bluetooth card is an Intel 8260NGW. I tested it for more than four years, starting with the out-of-the-box Monterey installation following your E7270 guide (I don't remember which Monterey version). Both Wi-Fi and Bluetooth worked flawlessly . I do not remember if I changed and added kext or patched In System Report, I see the following: Bluetooth Controller: Address: NULL State: Off Chipset: BCM_4350C2 Discoverable: Off Firmware Version: v0 c0 Product ID: 0x0001 Supported services: 0x382039 < HFP AVRCP A2DP HID Braille AACP GATT Serial > Transport: UART I am trying boot with a fresh downloaded EFI , and have no luck too. Thank you

@Hervé Thank you

Hi @Hervé I am following your guide E7270 and running on Monterey for years and no [problem . I am planning to upgrade to Sonoma. Please advise how the best way to update it. Thank you

@wing @Jazzoo I have 2-in-1 Latitude 7200 (detachable keyboard and touchpad) with i7-8665U and just installed Sonoma and OC 1.01. It looks like everything is working as it should: touchpad, touchscreen, graphics acceleration , brightness, audio, display setting and extended monitor, wifi, USB-c (charging + Thunderbolt). The only problem I found out so far is sleep function. On AC: When I wake up the laptop, the screen gets corrupt (vertical lines and colour change). If I take screenshot and save on USB, the png file displays perfectly Ok on another laptop. However my extended monitor stays perfectly normal. I can't find a way to recover the built-in screen (whether through change resolution, colour profile change) other than through a reboot. The lock function looks normal. On Battery: The sleep function goes to turn off the laptop The lock function looks normal till the sleep is triggered Please advise

Just wondering , why not utilize included Clover r 5141 driver option VboxHFS driver instead addition HFSplus driver ? also after complete the installation , only boot from "preboot " , does it normal ? @Hervé Thank you for comprehensive, detail and great guide

I just trying with OpenCore and UEFI wont detect neither , then removed the hard drive and detected by EFI as it should there was EFI windows boot manager on EFi boot list cause this problem and all good now

Thank you Jake, will try that

Yes, I did format the USB installer to GPT (GUID ) / Journal Extended with disk utility