Hi – sorry you are having problems.
FWTerm is a utility that loads the SDD code – it should show "Transferring .." for several minutes.
Obviously it is not Transferring, which is why your SDD code is that of the previous version. The SDD code has to be compatible with the driver for the Control Panel to appear.
Not sure what the problem is – let us think on it and get back to you. In the meantime, you may be able to continue as is, or revert to V5.2.