Venu SQ software downgrade

Hi, after new software upgrade on my Venus SQ to Vers. 4.70, the field data Cycling DF 7 and DF 4, are not correctly showned....on first page, as 1 field, the above and below data are cutted, I can see only the central area...why? How I can do the downgrade to previous Vers. 4.60? Thank you