For Wall mounting ATV630 size 1 to 6. If firmware is at V1.3IE1*, Is it possible to straight away upgrade to V2.1IE09 or upgrade to V1.6IE** then upgrade to V1.9IE** then finally upgrade to V2.1IE09.
If ATV630 firmware is at V1.3IE1* then it is possible to straight away upgrade to V2.1IE09