Catalina 10.15.7 and "A software update is required to connect to iPhone"
I was having difficulty updating my phone's OS on my iphone SE (2nd gen) so thought I would do it manually via the mac. In the end, by turning the phone on and off again (obviously!), I managed to update it wirelessly - so no problem now with my phone but I'm still bothered that my mac won't update.
When I connect the phone, the mac tells me "A software update is required to connect to iPhone". When I select install, it downloads 1 item, the progress bar chugs along for a few seconds installing then announces "Can't install the software".
I am plugging a USB-A to lightning cable into the USB port on the computer. The iMac is quite old so the latest OS that I can run on it is Catalina 10.15.7.
Looking in the logs I don't really understand what it is doing. One attempt had four services "exited due to SIGKILL | sent by mds[144]" followed by "...com.apple.xpc.launchd.domain.pid.SoftwareUpdateC.91592): Failed to bootstrap path: path = /System/Library/CoreServices/Software Update.app/Contents/Resources/SoftwareUpdateConfigData, error = 2: No such file or directory"
and then the same for SoftwareUpdateC.91595 - these both seem to be cable-related updates.
In finder I can see all the files in the path /System/Library/CoreServices/Software Update.app/Contents/Resources/SoftwareUpdateConfigData.
Any ideas???
Thanks in advance :)
iMac 21.5″, macOS 10.15