> Download and save the zip file below for the VIPER TTL
Note that the firmware installation and upgrade can only be done using a Windows PC or laptop
Apple IOS not compatible
> Select the correct language (EN, FR or DE)
> Follow the detailed instructions which are included in the contents of the zip file below
> Any problems, contact info@hahnel.ie
ViperTTL_Son_Receiv_V22
Corrects occasional misfiring in high speed sync mode
