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  1. amerv

    macOS Big Sur Does NOT Boot with iMac14,2 System Definition

    - I don't use hackintool - I always use ocvalidate tool to upgrade opencore * something is related to iGPU but I don't know what https://github.com/acidanthera/WhateverGreen/blob/master/Manual/FAQ.IntelHD.en.md
  2. amerv

    macOS Big Sur Does NOT Boot with iMac14,2 System Definition

    I wonder why it doesn't work 18,1 or 18,2 (default for kabylake opencore guide)
  3. amerv

    macOS Big Sur Does NOT Boot with iMac14,2 System Definition

    i have installed big sur 11.4 system definition iMac 17,1 and it works great but i can't work with iMac18,2 (default on kabylake opencore manual). The system boots up, colors are inverted and the graphics run slowly. With 18.1 the system is booted, progress indicator , but when the login screen...
  4. amerv

    [SOLVED]HP ProBook 4530s - Catalina 10.15.7 Wifi problem

    SOLVED>add kexts on the image in EFI/OC/Kexts and update config.plist
  5. amerv

    [SOLVED]HP ProBook 4530s - Catalina 10.15.7 Wifi problem

    it didn't help.I lost all day ...
  6. amerv

    [SOLVED]HP ProBook 4530s - Catalina 10.15.7 Wifi problem

    WIFI (AR9285) does not work. On Mojave 10.14.6 WIFI works great (rehabman ProBookAtheros.kext and IOath3kfrmwr.kext in / L / E). I’ve almost tried everything but it doesn’t work for me. Bootloader Open Core 0.6.7. Thanks.
  7. amerv

    after a security upgrade the high sierra won't boot

    I solved it, after 6 forums where no one even dared to suggest something and update high siera on security update 2020-004 and security update 2020-005.
  8. amerv

    after a security upgrade the high sierra won't boot

    i must return on windows (laptop) after 6 years macos...☹️
  9. amerv

    OC: alcid wont work in bootargs

    the alcid argument in bootargs does not work. in the second config file works (alcid = 13) does not work even DeviceProperties - Add for audio device. OpenCore 6.3. It works everything, WIFI, Bluetooth but audio does not. I made a new config.plist from the beginning (oc sample.plist) and...
  10. amerv

    macOS 11.0 Big Sur is Now Available on the Mac App Store

    upgrade from catalina / without any problems / opencore 6.3
  11. amerv

    after a security upgrade the high sierra won't boot

    after a security upgrade (from App Store) the high sierra won't boot. Open Core 6.3 and the latest versions of kexts. The picker appears, I select the boot partition "HS" but it takes me back to the picker
  12. amerv

    how to boot usb high sierra on HP Probook 4530s with opencore

    I tried all UEFI (UEFI setup), Legacy (mbr) in the first case opencore picker shows only EFI in the second case (Legacy setup ) "red screen" (x64 error)
  13. amerv

    macOS 11.0 Big Sur Public Beta is Now Available

    Install and uninstall - https://github.com/chris1111/Wireless-USB-Big-Sur-Adapter/files/4977561/Wireless.USB.Big.Sur.AdapterV-3.zip
  14. amerv

    macOS 11.0 Big Sur Public Beta is Now Available

    Install wifi USB adapter for Big Sur fix preboot loader, now visible macOS Big Sur in boot menu. THANK YOU
  15. amerv

    macOS 11.0 Big Sur Public Beta is Now Available

    No, clean install. But it's not a problem for me. The problem is that the "Big Sur" (SSD APFS) disk does not appear in my boot menu, so I start "preboter".
  16. amerv

    macOS 11.0 Big Sur Public Beta is Now Available

    "Mac Installer" (after first reboot in option menu) after some install progress on the screen, just stack second and restart. Install on SSD Kingston.
  17. amerv

    << Solved >> verbose from nowhere

    solved: sudo nvram boot-args=
  18. amerv

    << Solved >> verbose from nowhere

    I turned on the computer, recently installed macOS Catalina 10.15.6 but a verbose screen appeared and there is no sound. Does not use config on disk or install USB at all. I formatted the disk and tried to install MacOS again and already at the beginning of the verbose screen although in the...
  19. amerv

    After 10.15.4 Supplemental Update, No Sound on Youtube

    no sound on youtube. sound internal speakers work.
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