Can i flash old version from new?

Installing and Using OpenWrt
1

I'm on 23.05.5 can i flash old version like 22 or anything?
Is there any special method or i just need to update from 192.168.1.1 firmware update option

2

What device (to ensure there wasn't a partition change)?

3

Archer c6 v2(us)

4

In a word, Yes. You can use sysupgrade. Be aware this comes with caveats:

  • You can not carry over your config from a more recent version. (You can create a backup for reference only.
  • Security issues will not be addressed once a Release has entered EOL and is no longer deemed supported (23.05.5 only receives critical security updates, older Releases do not).
  • You can only revert back to the 21.02.0 Release (the original commit)

Considering that this will compromise your network adversely, why would you need to take this course of action.

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