Indigo v4 Incompatibility with i2CS Firmware Modules

Most newer INSTEON modules have the i2CS firmware, which includes many reliability improvements.

However, the extensive Indigo changes required for the i2CS firmware compatibility are only available in Indigo 5 and higher. You can download the latest version of Indigo here. Note that all major version upgrades to Indigo are paid upgrades, but upgrade discounts are available. To upgrade visit our purchase page and enter your current registration code and we'll show your specific upgrade discount eligibility. You can also register for a free 30 day trial of the latest version of Indigo to make sure it supports all of your INSTEON modules.