From the things I've read, I think it's like this:
There are two versions of CycloWiz, the one from the first batch and the one from the second batch.
The first version is like a bad version of Wiinja V1
- Not compatible with that D2B chip
- No region unlocking
- Some games not working
- Lots of DRE's
- Not upgradeable
The second version is a clone of the fake WiiKey
- Compatible with that D2B chip
- Region unlocking (USA/JAP, bot PAL)
- Fixes game incompatibilities
- Less DRE's
- Upgradeable
So I believe the first batch of CycloWiz was not really upgradeable, so if you have that one, it's best to try and tell them you had the D2B chip and want the new one, cause it are just 2 completely different products it seems...