Cudy X6 v2 owut upgrade fails for both 24.10.5 and 25.12.0

Installing and Using OpenWrt
1

When trying to upgrade to 24.10.5 or 25.12.0 using owut, upgrade fails with config is incompatible to the new image

~ # owut upgrade -r luci-app-argon-config,luci-theme-argon
ASU-Server     https://sysupgrade.openwrt.org
Upstream       https://downloads.openwrt.org
Target         ramips/mt7621
Profile        cudy_x6-v2
Package-arch   mipsel_24kc
Version-from   24.10.5 r29087-d9c5716d1d (kernel 6.6.119)
Version-to     24.10.5 r29087-d9c5716d1d (kernel 6.6.119)
30 packages are out-of-date
There are 0 missing and 1 modified default packages
Request hash:
  a8a1774e554a14211c5e10bf5076d4e83b50463d27bff1a9d7e49a2edde5913d
--
Status:   done
Progress:   0s total =   0s in queue +   0s in build

Build succeeded in   0s total =   0s in queue +   0s to build:
Image saved : /tmp/firmware.bin
ERROR: sysupgrade validation failed:
stderr =
Tue Mar 17 20:57:12 +06 2026 upgrade: The device is supported, but the config is incompatible to the new image (1.0->1.1). Please upgrade without keeping config (sysupgrade -n).
Tue Mar 17 20:57:12 +06 2026 upgrade: Config cannot be migrated from swconfig to DSA
Image check failed.
2

not really ....

3

Any way to upgrade while keeping config? or figuring out the conflicts?

4

you can export the config, and reimport it after the upgrade, if you can figure out what has changed.