Hello brothers, these days you must have begun to hear more about Apple's newly launched ios and ipadOS.
Today I would like to guide you how to upgrade this operating system for iPhone and iPad devices.
I will guide you 2 ways, both ways need to download the ispw file of the device.
Note: Please remember to backup your data.
You find and download the firmware file of your device here.
If your macbook has upgraded to MACOS 10.15 as shown
You just need to open the Music section, plug in the iphone / ipad connection and restore with ispw file by holding down the Option key and clicking on "Check Update" then select the ispw file as usual.
If you have not updated MACOS then refer here
If you do not want to update your MACOS, you can download Xcode 11 from Apple at this link or this link and install it on the machine.
After installation is complete, you restart and start to update for iphone or ipad as above.