If you see "Software update is required to connect to your iOS device" on your iPhone, iPad, or iPod touch
Q - I have a glitch in OS 11.6.7 "
A - What glitch as Big Sur 11.6.7 is the latest version
Q - Also, the software update no longer works as it is still looking for a software update.
A - 1 - Like poor Wifi connection
2 - Slow wifi connection
3 - Too many other people downloading at the same time and Apple Severs are overloaded
4 - Software on the computer interfering with the download process including AntiVirus Software
Notation: Disabling the AV Software may or may not solve the issue. Removal of the AV Software may increase the chances of the download to perform as expected.
5 - Running behind a VPN which may increase Packet losses or corruption of the download
6 - If via wifi too many Other devices using the wifi at the same time reducing the Bandwidth to your computer.
7 - Best Results are via Ethernet Cable to Router
8 - Restart the computer in Safe Mode. This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts. The boot up will be slow and can take some time - Normal.