Langkah1: Backup Data Macbook. Langkah2: Logout iCloud. Langkah3: Download MacOS dan Persiapkan USB Flashdisk. Langkah4: Membuat USB Flashdisk Booting MacOS. Langkah5: Boot ke Recovery Mode melalui USB dan Install MacOS. Langkah6: Restore Data. Cara Install Ulang MacBook dengan Recovery Mode. Safari: Download and install Acrobat Reader. Go to the Adobe Acrobat Reader download page, and select Download Acrobat Reader. Double-click the .dmg file. (If you don't view the Safari Downloads window, select Finder > (User Name) > Downloads .) Double-click Install Adobe Acrobat Reader to start the installation. Step 3. Download the macOS Installer . Apple has changed the method for downloading versions of the operating system of macOS. While the installers were previously available to download via the App Store, newer versions (macOS Mojave and later) update the system from System Preferences.

If you have decided to update your Mac PC, you have to make sure that your device doesn't run the OS later than Mac OS X Snow Leopard 10. 6. 8. People Also Search: How to Update Mac to macOS Sierra; A Complete Guide to macOS Mojave 10.14.4 Update; How to Update My Mac to OS X 10.11.6/10.11.4?

Upgrading your Mac from OS X 10.9.5 to macOS Catalina is straightforward and easy to do. First, make sure your Mac meets the system requirements for macOS Catalina; these can be found on Apple's Downgrade Big Sur with Time Machine like this: Restart your Mac, holding down the Command+R keys while it reboots. In the macOS Utilities window choose Restore From Time Machine Backup, and click Continue. Select your Time Machine backup disk in the next window, and click on your most recent backup before installing macOS Big Sur. Jadi sebagai contoh untuk iPhone 7, saat ini kamu bisa upgrade ke iOS 11.2.5 terbaru atau downgrade maksimal di iOS 11.2, karena versi IPSW yang lebih lawas dari itu sudah tidak di signed lagi oleh Apple. Cara Upgrade iOS dengan IPSW. Oke sekarang kita langsung masuk di cara upgrade iOS dengan IPSW. puGNo.
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    • cara upgrade os macbook