Jordi Beltran Posted November 19, 2020 Share Posted November 19, 2020 Yesterday, I was trying to install Big Sur in my Lenovo Ideapad C340 with an Intel i7-8565u with Intel UHD620, nvidia MX230, 8gb ram and pm981. I know that PM981 is unsupported by macOS, that's why I realize the installation in a external drive (Catalina worked). Well, I used Olarila image for install Big Sur and I follow the steps from a page to create my EFI with my SSDT files, etc. Installation boots, I can install Big Sur in my USB Drive but when the laptop reboots, it freezes in the preboot with Apple Logo and "less than a minute". I'll leave here my EFI and if someone can take a look and help I would be very grateful. Thanks https://drive.google.com/file/d/18FYtL8A8hArDX-alLJL0UyKYeIjfSny3/view?usp=sharing Quote Link to comment Share on other sites More sharing options...
Administrators MaLd0n Posted November 20, 2020 Administrators Share Posted November 20, 2020 if u have a good folder for catalina just update bootloader and kexts and go to big sur Quote -Donations- PayPal HERE - Stripe HERE - Ko-Fi HERE - BuyMeaCoffee HERE - Mercado Livre HERE Skrill [email protected] BTC 1BDzsV4bw3DVCiffFAeNKsdEzqkPXNVrXR ETH BSC BEP20 0xb57cfdfa371fad1981910f0e8332409ab99f74d9 BNB 0x10D1d656eCa00bD521f9b4A43B83098B8142e115 USDT BSC BEP20 0xb57cfdfa371fad1981910f0e8332409ab99f74d9 USDT TRC20 TUR6Z9AVS4AYzqPnULoHrfFvppRbhXmNbZ PicPay @danielnmaldonado PiX @[email protected] Problems with Paypal HERE Sign up for a Bybit account and claim exclusive rewards HERE New ways to earn money with Linkvertise HERE Link to comment Share on other sites More sharing options...