installed a new 998 C SI out of the box. latest update caused it to freeze. sent to Humminbird repair was told it was all good and tested fine, tried to use it Saturday and it wont read the C 6 Platinum card. Shows chart loading all the time but nothing ever happens. i have noticed there is no chart select on the unit. did the factory repair miss something when re-installing the software??? has anyone had the same problem and if so please don't tell me i have to send it back again. my 958 down imaging shows chart select where you can select Auto or right side and i'm sure this unit should be the same