Problems with 1.2.1 flash update

If you used the “upgrade to 1.2.1” option on the controller from 1.1.1 I would point you in the direction of re-flashing the SD-card following these instructions:

According to the upgrade info on this site the only permitted way to upgrade from 1.1, 1.1.1 or 1.1.2 is via a full re-flash of the SD-card.

Important notes:

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