TDS 256K card for SX Need SWITCH Library

[MattiMark]

Yes I have installed the Switch library in normal manner, that is download it in binary 0 STO. Power cycle. I now get Invalid Card Data message.

In the menu there are:

BS1
BS2
BANKN
SEARCH, and
BSVER(SION)

I have tried to install the card into both slots of my 48SX, but to no joy. When the TDS 256KB card is installed in port 2 I can see that there is a card in that slot.
Trying to figure out things - BANKN ought to initialize the number of banks and what port I am using. For me, I imagine, it would be 2 2 BANKN. Switch accepts this command. Then I try 1 2 BANKN => Errror: no card in port 1, which suggests that everything is good so far. Or is it?

I am getting no further...
Anyone have clues?

Thanks in advance, Matti